Journal articles: 'Anterior eye segment'

1

Lee, J. P., and J. M. Olver. "Anterior Segment Ischaemia." Eye 4, no. 1 (January 1990): 1–6. http://dx.doi.org/10.1038/eye.1990.2.

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Eter, N., S. Garbe, D. Pauleit, T. Schüttoff, and H. Schüller. "Magnetic Resonance Imaging Analysis of Anterior and Posterior Eye Segment Displacement during Ocular Gaze Shifts." European Journal of Ophthalmology 13, no. 2 (March 2003): 196–201. http://dx.doi.org/10.1177/112067210301300212.

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Purpose To determine the relationship between movements of the posterior and anterior eye segments during arbitrary gaze shifts and to obtain information for monitoring fixation during radiotherapy for ocular diseases. Methods We examined eye movements of ten emmetropic volunteers in a 1.5 T magnetic resonance system. Using a T2-weighted ultrafast turbo-spin echo sequence (UTSE), the eyes were examined within 21 seconds. Sagittal and transversal eye slices were obtained in five passages in five gaze directions (straight ahead, 15° above, 15° below, 15° right and 15° left of the primary position). Displacement of the posterior eye segment was analyzed in relation to the movement of the anterior segment in all directions. Results The relationship between the movements of the anterior and posterior eye segment was 1:0.8 (± 0.06 SD) during horizontal gaze shifts and 1:1.16 (± 0.11 SD) during vertical gaze shifts. Conclusions Magnetic resonance imaging showed that the relationship between anterior and posterior eye segments was different during horizontal and vertical eye movements, indicating the presence of more than one center of rotation. Compared to the anterior eye segment, there was less displacement of the posterior eye segment during horizontal eye movements and more displacement during vertical eye movements.

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Olver, J. M., and A. C. E. McCartney. "Anterior segment vascular casting." Eye 3, no. 3 (May 1989): 302–7. http://dx.doi.org/10.1038/eye.1989.43.

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Rohen, Johannes W., and Richard H. W. Funk. "Vasculature of the anterior eye segment." Progress in Retinal and Eye Research 13, no. 2 (January 1994): 653–85. http://dx.doi.org/10.1016/1350-9462(94)90026-4.

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Hernandez-Zimbron, Luis Fernando, Rosario Gulias-Cañizo, María F. Golzarri, Blanca Elizabeth Martínez-Báez, Hugo Quiroz-Mercado, and Roberto Gonzalez-Salinas. "Molecular Age-Related Changes in the Anterior Segment of the Eye." Journal of Ophthalmology 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/1295132.

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Purpose. To examine the current knowledge about the age-related processes in the anterior segment of the eye at a biological, clinical, and molecular level. Methods. We reviewed the available published literature that addresses the aging process of the anterior segment of the eye and its associated molecular and physiological events. We performed a search on PubMed, CINAHL, and Embase using the MeSH terms “eye,” “anterior segment,” and “age.” We generated searches to account for synonyms of these keywords and MESH headings as follows: (1) “Eye” AND “ageing process” OR “anterior segment ageing” and (2) “Anterior segment” AND “ageing process” OR “anterior segment” AND “molecular changes” AND “age.” Results. Among the principal causes of age-dependent alterations in the anterior segment of the eye, we found the mutation of the TGF-β gene and loss of autophagy in addition to oxidative stress, which contributes to the pathogenesis of degenerative diseases. Conclusions. In this review, we summarize the current knowledge regarding some of the molecular mechanisms related to aging in the anterior segment of the eye. We also introduce and propose potential roles of autophagy, an important mechanism responsible for maintaining homeostasis and proteostasis under stress conditions in the anterior segment during aging.

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Acharya U, R., L. Y. Wong, E. Y. K. Ng, and J. S. Suri. "Automatic identification of anterior segment eye abnormality." IRBM 28, no. 1 (March 2007): 35–41. http://dx.doi.org/10.1016/j.rbmret.2007.02.002.

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Kampfer, T., A. Wegener, V. Dragomirescu, and O. Hockwin. "Improved Biometry of the Anterior Eye Segment." Ophthalmic Research 21, no. 3 (1989): 239–48. http://dx.doi.org/10.1159/000266815.

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Purišić, Azra, Safet Lješnjanin, and Aleksandar Stijepčević. "Influence of diabetes mellitus on anterior segment of eye." Zdravstvena zastita 41, no. 6 (2012): 66–70. http://dx.doi.org/10.5937/zz1204066p.

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Pineles, S. L., M. Y. Chang, E. L. Oltra, M. S. Pihlblad, J. P. Davila-Gonzalez, T. C. Sauer, and F. G. Velez. "Anterior segment ischemia: etiology, assessment, and management." Eye 32, no. 2 (November 17, 2017): 173–78. http://dx.doi.org/10.1038/eye.2017.248.

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Jhanji, V., E. Chan, S. Das, H. Zhang, and R. B. Vajpayee. "Trypan blue dye for anterior segment surgeries." Eye 25, no. 9 (June 17, 2011): 1113–20. http://dx.doi.org/10.1038/eye.2011.139.

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Pfister, Roswell R. "The intraocular changes of anterior segment necrosis." Eye 5, no. 2 (March 1991): 214–21. http://dx.doi.org/10.1038/eye.1991.36.

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Williams, D. L. "A comparative approach to anterior segment dysgenesis." Eye 7, no. 5 (September 1993): 607–16. http://dx.doi.org/10.1038/eye.1993.142.

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Kong, Ruiming, Wenjuan Wu, Rui Qiu, Lei Gao, Fengxian Du, Ailin Liu, Xuan Cai, and Cuixia Dai. "Imaging depth extension of optical coherence tomography in rabbit eyes using optical clearing agents." Experimental Biology and Medicine 245, no. 18 (August 13, 2020): 1629–36. http://dx.doi.org/10.1177/1535370220949834.

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Optical coherence tomography has become an indispensable diagnostic tool in ophthalmology for imaging the retina and the anterior segment of the eye. However, the imaging depth of optical coherence tomography is limited by light attenuation in tissues due to optical scattering and absorption. In this study of rabbit eye both ex vivo and in vivo, optical coherence tomography imaging depth of the anterior and posterior segments of the eye was extended by using optical clearing agents to reduce multiple scattering. The sclera, the iris, and the ciliary body were clearly visualized by direct application of glycerol at an incision on the conjunctiva, and the posterior boundary of sclera and even the deeper tissues were detected by submerging the posterior segment of eye in glycerol solution ex vivo or by retro-bulbar injection of glycerol in vivo. The ex vivo rabbit eyes recovered to their original state in 60 s after saline-wash treatment, and normal optical coherence tomography images of the posterior segment of the sample eyes proved the self-recovery of in vivo performance. Signal intensities of optical coherence tomography images obtained before and after glycerol treatment were compared to analysis of the effect of optical clearing. To the best of our knowledge, this is the first study for imaging depth extension of optical coherence tomography in both the anterior and posterior segments of eye by using optical clearing agents.

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Sakata, Lisandro, and Kenji Sakata. "Anterior Segment Imaging – Anterior Chamber Angle Assessment." European Ophthalmic Review 04, no. 01 (2010): 60. http://dx.doi.org/10.17925/eor.2010.04.01.60.

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Angle closure is a visually destructive form of glaucoma that accounts for approximately half of the worldwide blindness caused by this disease. Angle-closure glaucoma tends to occur in anatomically pre-disposed eyes, and the evaluation of the anterior segment morphology may help identify eyes at risk of angle closure. Ultrasound biomicroscopy is one of the devices developed for anterior-segment imaging, and it helped to provide better understanding of the mechanisms of angle closure. Recently, optical coherence tomography (OCT) technology became available for evaluating the anterior segment of the eye, enabling rapid non-contact imaging of the anterior chamber. Interestingly, anterior segment OCT (AS-OCT) technology appears to detect more eyes with angle closure compared with gonioscopy, and further studies should address how anterior segment imaging findings should be incorporated into the clinical decision-making process. In summary, this article reviews most of the previously published papers on the use of anterior segment imaging in angle-closure glaucoma and tackles some relevant points for the interpretation of imaging exams in daily clinical practice.

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Zheng, Ke, Tian Han, Feng Zhao, Yinan Han, and Xingtao Zhou. "Identification of separated lenticular planes using optical coherence tomography." European Journal of Ophthalmology 30, no. 5 (June 6, 2019): 928–32. http://dx.doi.org/10.1177/1120672119853207.

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Purpose: To discuss how optical coherence tomography can be used to identify separated lenticular planes during small incision lenticule extraction (SMILE). Methods: SMILE procedures were performed on 26 eyes of 13 patients. An anterior segment optical coherence tomography examination was performed after laser scan. Anterior segment optical coherence tomography examinations were conducted again both after separation of the anterior lenticular plane in the right eye and after separation of the posterior lenticular plane in the left eye. Lenticule extraction was then completed, followed by another anterior segment optical coherence tomography examination. Anterior segment optical coherence tomography was also conducted on both eyes on the first day after surgery. Each measurement consisted of four line scans along the 45°, 90°, 135°, and 180° meridians. The brightness scores were compared between the two planes after the separation of one plane. Results: Anterior segment optical coherence tomography showed two bright lines after laser scan. Along with all meridians, the brightness of the anterior plane was less in the right eye, for which only the anterior plane was separated, and the brightness of the posterior plane was less in the left eye, for which only the posterior plane was separated (all P < 0.001). After lenticule extraction in both eyes, anterior segment optical coherence tomography revealed that a smooth hyperreflective line existed between the cap and the residual stromal bed, and this line remained throughout the first day after surgery. Conclusion: The bubbles produced by the creation of the lenticule in SMILE mostly disappear by manual separation, and anterior segment optical coherence tomography can help the surgeon identify the separated lenticular planes.

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Hyon, Joon Young. "Anterior segment eye diseases associated with rheumatic diseases." Journal of the Korean Medical Association 59, no. 1 (2016): 45. http://dx.doi.org/10.5124/jkma.2016.59.1.45.

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NOWINSKA, A. "Corneal dystrophies and hereditary anterior eye segment disorders." Acta Ophthalmologica 89, s248 (September 2011): 0. http://dx.doi.org/10.1111/j.1755-3768.2011.4134.x.

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Cutarelli, Paul E., and Michael A. Aronsky. "The Painful Eye: External and Anterior Segment Causes." Clinics in Geriatric Medicine 15, no. 1 (February 1999): 103–12. http://dx.doi.org/10.1016/s0749-0690(18)30076-4.

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Wylegala, Edward, Dariusz Dobrowolski, Anna Nowińska, and Dorota Tarnawska. "Anterior segment optical coherence tomography in eye injuries." Graefe's Archive for Clinical and Experimental Ophthalmology 247, no. 4 (September 3, 2008): 451–55. http://dx.doi.org/10.1007/s00417-008-0937-x.

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Diego, Ana, and Mohamed Abou Shousha. "Portable Anterior Eye Segment Imaging System for Teleophthalmology." Translational Vision Science & Technology 12, no. 1 (January 6, 2023): 11. http://dx.doi.org/10.1167/tvst.12.1.11.

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Gouveia-Andrade, L. "Anterior segment eye infections: diagnostic trends in a university eye clinic." Vision Research 35, no. 1 (October 1995): S57. http://dx.doi.org/10.1016/0042-6989(95)98248-8.

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Aydin, Pinar, Yonca A. Akova, and Sibel Kadayifçilar. "Anterior segment indocyanine green angiography in scleral inflammation." Eye 14, no. 2 (March 2000): 211–15. http://dx.doi.org/10.1038/eye.2000.56.

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Liu, Bin, Chengwei Kang, and Fengzhou Fang. "Biometric Measurement of Anterior Segment: A Review." Sensors 20, no. 15 (July 31, 2020): 4285. http://dx.doi.org/10.3390/s20154285.

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Biometric measurement of the anterior segment is of great importance for the ophthalmology, human eye modeling, contact lens fitting, intraocular lens design, etc. This paper serves as a comprehensive review on the historical development and basic principles of the technologies for measuring the geometric profiles of the anterior segment. Both the advantages and drawbacks of the current technologies are illustrated. For in vivo measurement of the anterior segment, there are two main challenges that need to be addressed to achieve high speed, fine resolution, and large range imaging. One is the motion artefacts caused by the inevitable and random human eye movement. The other is the serious multiple scattering effects in intraocular turbid media. The future research perspectives are also outlined in this paper.

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Cai, Wenjia, Jie Xu, Ke Wang, Xiaohong Liu, Wenqin Xu, Huimin Cai, Yuanxu Gao, et al. "EyeHealer: A large-scale anterior eye segment dataset with eye structure and lesion annotations." Precision Clinical Medicine 4, no. 2 (April 27, 2021): 85–92. http://dx.doi.org/10.1093/pcmedi/pbab009.

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ABSTRACT Anterior segment eye diseases account for a significant proportion of presentations to eye clinics worldwide, including diseases associated with corneal pathologies, anterior chamber abnormalities (e.g. blood or inflammation), and lens diseases. The construction of an automatic tool for segmentation of anterior segment eye lesions would greatly improve the efficiency of clinical care. With research on artificial intelligence progressing in recent years, deep learning models have shown their superiority in image classification and segmentation. The training and evaluation of deep learning models should be based on a large amount of data annotated with expertise; however, such data are relatively scarce in the domain of medicine. Herein, the authors developed a new medical image annotation system, called EyeHealer. It is a large-scale anterior eye segment dataset with both eye structures and lesions annotated at the pixel level. Comprehensive experiments were conducted to verify its performance in disease classification and eye lesion segmentation. The results showed that semantic segmentation models outperformed medical segmentation models. This paper describes the establishment of the system for automated classification and segmentation tasks. The dataset will be made publicly available to encourage future research in this area.

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Sakti, Fazella Kirara. "Anterior Segment Examination with Slit-Lamp Biomicroscope: What Should be Highlighted?" European Journal of Medical and Health Sciences 3, no. 5 (September 22, 2021): 14–19. http://dx.doi.org/10.24018/ejmed.2021.3.5.1021.

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Ocular health assessment consists of various types of examinations that aim to find pathological conditions in the eye so that it helps ophthalmologists to diagnose and provide therapy for ocular disorders suffered by the patients. Slit-lamp biomicroscope is one of the most important eye assessments and has become the standard in assessing the pathological condition of the anterior part of the eye. This examination is performed using a stereoscopic biomicroscope instrument in combination with a bright illumination source. The results of the anterior segment examination using slit-lamp biomicroscope may provide more detailed ocular findings, such as the abnormalities of the eyelid, conjunctival lesions, abnormalities of the cornea, lens, or other parts of the anterior ocular segments. Therefore, the ability to examine slit-lamp biomicroscope is essential for the ophthalmologist. This review will discuss the eye examination using slit-lamp biomicroscope and the findings that will make it easier for clinicians to determine the direction of diagnostic approach in ocular patients.

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Radashevsky, Vasily I., Mauricio Díaz, and Carlos Bertrán. "Morphology and biology of Prionospio patagonica (Annelida: Spionidae) from Chile." Journal of the Marine Biological Association of the United Kingdom 86, no. 1 (January 12, 2006): 61–69. http://dx.doi.org/10.1017/s0025315406012860.

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Prionospio patagonica inhabits temporary silty tubes intertidally and shallow subtidally in brackish water estuarine environments in southern Chile. The species is gonochoristic with the female:male ratio being close to 2:1. Females and males release gametes into water. Pelagic planktotrophic larvae were caught in the plankton in the River Valdivia estuary in October–November and in March. Development of the adult morphology is described and illustrated beginning from the 2-chaetiger larval stage. One pair of lateral eyes first appears in the early larva, and shortly after that the right median eye develops. The left median eye appears after settlement, in juveniles with 10–11 segments. Developed 6-segment larvae have three dark red eyes, short palps of equal length, no nototrochs, one pair of small cells with grasping cilia on the pygidium, a small ciliated pit, gastrotrochs on segments 2–6, long serrated bristles in notopodia, adult capillaries in noto- and neuropodia on segments 2–5, single hooks in both rami on segment 6, and one pair of provisional papillae on the pygidium. A ventral buccal bulb is present below the short oesophagus and two pairs of provisional protonephridia are present in segments 1 and 2. The wall of the anterior part of the midgut has a characteristic brown pigment. The 6-segment larvae, about 400 μm long, settle and undergo gradual metamorphosis. In adults, hooks are gradually lost from noto- and neuropodia but sabre chaetae appear from segment 7 and retain their anterior position as growth proceeds. Up to 14 pairs of cirriform branchiae develop from segment 2, and three adult cirri appear on the pygidium. The afferent and efferent arms of each branchial blood loop are interconnected by capillary loops. A greenish heart body is present in the main dorsal blood vessel in anterior segments. Up to 21 pairs of metanephridia develop in anterior sterile segments, beginning with segment 4. Transparent gonoducts are present in fertile segments.

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Paczwa, Katarzyna, Justyna Mędrzycka, Joanna Gołębiewska, and Radosław Różycki. "Contemporary possibilities in the diagnostics of anterior and posterior eye diseases with the use of new-generation OCT." OphthaTherapy. Therapies in Ophthalmology 8, no. 2 (June 21, 2021): 81–86. http://dx.doi.org/10.24292/01.ot.300621.1.

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Optical coherence tomography is a non-contact imaging method of the anterior and posterior segments of the eye that is based on laser scanning in spectral domain. This study presents diagnostic possibilities of the new generation Solix FullRange™ OCT&OCTA apparatus (Optovue) to examine meibomian glands, cornea, anterior chamber, as well iridocorneal angles and lens. In the posterior segment of the eye it allows for the precise evaluation of the vitreous body, choroid, retina, optic nerve and blood-flow measurements.

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Luo, Dongmei. "Geometric Modeling of Human Eyes Based on OCT Image of Anterior Segment and Its Application." Academic Journal of Science and Technology 2, no. 3 (September 12, 2022): 114–17. http://dx.doi.org/10.54097/ajst.v2i3.1578.

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The aqueous humor flowing in the human eye plays a very important role in maintaining the normal physiological function of the human eye. Once the outflow of aqueous humor is blocked, it will lead to the increase of intraocular pressure, which will lead to glaucoma and other ophthalmic diseases. Therefore, it is of great significance to study the aqueous humor dynamics mechanism of human eyes to explore the physiological structure of human eyes, the pathogenesis and treatment of ophthalmic diseases. In previous studies, most of the geometric models of anterior segment of human eye hydrodynamics are ideal simplified models based on the anatomical data of human eyes, so the simulated results may deviate from the actual situation. In this paper, the OCT image of anterior segment is denoised and segmented by using image processing technology. At the same time, combined with the conventional data of human anatomy, the geometric model of anterior segment is reconstructed, which is closer to the real human eye and has personalized characteristics. On this basis, the flow of aqueous humor in normal eyes was simulated and studied, and the vortex in iris recess was found. The results show that this method can reflect the aqueous humor flow in real eyes more accurately.

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Heidari, Zahra, Mehdi Baharinia, Kiana Ebrahimi-Besheli, and Hanieh Ahmadi. "A review of artificial intelligence applications in anterior segment ocular diseases." Medical hypothesis, discovery & innovation in optometry 3, no. 1 (September 30, 2022): 22–33. http://dx.doi.org/10.51329/mehdioptometry146.

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Background: Artificial intelligence (AI) has great potential for interpreting and analyzing images and processing large amounts of data. There is a growing interest in investigating the applications of AI in anterior segment ocular diseases. This narrative review aims to assess the use of different AI-based algorithms for diagnosing and managing anterior segment entities. Methods: We reviewed the applications of different AI-based algorithms in the diagnosis and management of anterior segment entities, including keratoconus, corneal dystrophy, corneal grafts, corneal transplantation, refractive surgery, pterygium, infectious keratitis, cataracts, and disorders of the corneal nerves, conjunctiva, tear film, anterior chamber angle, and iris. The English-language databases PubMed/MEDLINE, Scopus, and Google Scholar were searched using the following keywords: artificial intelligence, deep learning, machine learning, neural network, anterior eye segment diseases, corneal disease, keratoconus, dry eye, refractive surgery, pterygium, infectious keratitis, anterior chamber, and cataract. Relevant articles were compared based on the use of AI models in the diagnosis and treatment of anterior segment diseases. Furthermore, we prepared a summary of the diagnostic performance of the AI-based methods for anterior segment ocular entities. Results: Various AI methods based on deep and machine learning can analyze data obtained from corneal imaging modalities with acceptable diagnostic performance. Currently, complicated and time-consuming manual methods are available for diagnosing and treating eye diseases. However, AI methods could save time and prevent vision impairment in eyes with anterior segment diseases. Because many anterior segment diseases can cause irreversible complications and even vision loss, sufficient confidence in the results obtained from the designed model is crucial for decision-making by experts. Conclusions: AI-based models could be used as surrogates for analyzing manual data with improveddiagnostic performance. These methods could be reliable tools for diagnosing and managing anterior segmentocular diseases in the near future in remote areas. It is expected that future studies can design algorithms thatuse less data in a multitasking manner for the detection and management of anterior segment diseases.

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Shivanna, Mahesh, Manisha Anand, Subhabrata Chakrabarti, and Hemant Khanna. "Ocular Ciliopathies: Genetic and Mechanistic Insights into Developing Therapies." Current Medicinal Chemistry 26, no. 17 (August 27, 2019): 3120–31. http://dx.doi.org/10.2174/0929867325666180917102557.

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Developing suitable medicines for genetic diseases requires a detailed understanding of not only the pathways that cause the disease, but also the identification of the genetic components involved in disease manifestation. This article focuses on the complexities associated with ocular ciliopathies – a class of debilitating disorders of the eye caused by ciliary dysfunction. Ciliated cell types have been identified in both the anterior and posterior segments of the eye. Photoreceptors (rods and cones) are the most studied ciliated neurons in the retina, which is located in the posterior eye. The photoreceptors contain a specialized lightsensing outer segment, or cilium. Any defects in the development or maintenance of the outer segment can result in severe retinal ciliopathies, such as retinitis pigmentosa and Leber congenital amaurosis. A role of cilia in the cell types involved in regulating aqueous fluid outflow in the anterior segment of the eye has also been recognized. Defects in these cell types are frequently associated with some forms of glaucoma. Here, we will discuss the significance of understanding the genetic heterogeneity and the pathogenesis of ocular ciliopathies to develop suitable treatment strategies for these blinding disorders.

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Arora, R., S. Mehta, J. L. Goyal, S. Pahuja, D. Gupta, and R. Gupta. "Pattern of Scheimpflug imaging in anterior segment foreign bodies." Eye 24, no. 7 (December 18, 2009): 1304–6. http://dx.doi.org/10.1038/eye.2009.302.

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Olver, J. M., and J. P. Lee. "The effects of strabismus surgery on anterior segment circulation." Eye 3, no. 3 (May 1989): 318–26. http://dx.doi.org/10.1038/eye.1989.46.

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Talks, S. J., R. A. Luqmani, and P. J. McDonnell. "A severe, antineutrophil cytoplasmic antibody associated, anterior segment vasculitis." Eye 8, no. 6 (November 1994): 698–700. http://dx.doi.org/10.1038/eye.1994.174.

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Kuckelkorn, Ralf, Andreas Remky, Sebastian Wolf, Martin Reim, and Claudia Redbrake. "Video fluorescein angiography of the anterior eye segment in severe eye burns." Acta Ophthalmologica Scandinavica 75, no. 6 (May 27, 2009): 675–80. http://dx.doi.org/10.1111/j.1600-0420.1997.tb00629.x.

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Gouveia-Andrade, L., W. Rodriguez, J. Robalo-Soares, J. Franco, A. Castanheiro-Dinis, and J. Ribeiro-da-Silva. "1143 Anterior segment eye infections: Diagnostic trends in a University eye clinic." Vision Research 35 (October 1995): S57. http://dx.doi.org/10.1016/0042-6989(95)90039-x.

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Zinkernagel, M., A. Papazoglou, and C. K. Patel. "Bimanual anterior segment revision surgery for anterior capsule contraction syndrome associated with anterior flexion of intraocular lens haptics." Eye 27, no. 12 (September 13, 2013): 1388–90. http://dx.doi.org/10.1038/eye.2013.206.

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Stefanovic, Ivan, Bojana Dacic-Krnjaja, and Smiljka Djuric. "Ultrasound biomicroscopy in diagnosis of anterior segment pathology." Srpski arhiv za celokupno lekarstvo 137, no. 3-4 (2009): 185–88. http://dx.doi.org/10.2298/sarh0904185s.

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Introduction. Ultrasound biomicroscopy (UBM) is a non-invasive diagnostic procedure, developed in order to achieve better visualization of the anterior segment of the eye. The first clinical images were made in March 1990. The use of UBM at the Institute for Eye Diseases, Clinical Centre of Serbia, began in February 2007. Outline of Cases. Due to a drop in visual acuity, the first patient was sent to the Institute for Eye Diseases, Clinical Centre of Serbia. The existence of the ciliary body tumour was suspected, so she underwent a UBM diagnostic procedure. UBM showed fibrin in the anterior chamber of the eye, occlusion of the pupil, and the absence of tumour. The second patient had a part of the chamber angle filled with solid lesion. UBM showed a solid tumour lesion filling the chamber angle in the lower part of the anterior chamber. The origin of the tumour was the ciliary body rather than the choroid which was shown by the B scan ultrasound. Lipodermoid was found by clinical examination of the third patient. He underwent UBM in order to exclude the involvement of the sclera under the lesion. UBM visualized a subconjunctival lesion lying on the sclera, reaching the limbus of the cornea. The difference in ultrasound reflection of the two tissues helped us to confirm that the sclera was not involved. Our fourth patient underwent an antiglaucomatous procedure, and the assessment of the chamber angle opening was the reason for the UBM examination. Parameters measured in the lower quadrants (6 o'clock) that we managed to obtain were the following: AOD (250 ?m) - 180 ?m, AOD (500 ?m) - 400 ?m, TIA - 34.39 deg., ARA - 0.25 mm2. Comparing them to normal values, we came to the conclusion that the chamber angle was open in the lower part of the anterior chamber. Conclusion. Ultrasound biomicroscopy gives us plenty of useful information when it comes to diagnosing the anterior chamber pathology.

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Dalz, Magdalena, Marcin Stopa, Jaromir Wasyluk, and Marek E. Prost. "Other parasite diseases of anterior segment of the eye." OphthaTherapy. Therapies in Ophthalmology 5, supl. 1 (May 30, 2018): 26–30. http://dx.doi.org/10.24292/01.ot.sup1310518.06.

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Marchenko, N. R., E. A. Kasparova, E. A. Budnikova, and M. A. Makarova. "Anterior eye segment damage in coronavirus infection (COVID-19)." Vestnik oftal'mologii 138, no. 6 (2021): 142. http://dx.doi.org/10.17116/oftalma2021137061142.

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Ostojić, Jelena, Siniś Grozdanić, Nasreen A. Syed, Mark S. Hargrove, James T. Trent, Markus H. Kuehn, Randy H. Kardon, Young H. Kwon, and Donald S. Sakaguchi. "Neuroglobin and Cytoglobin Distribution in the Anterior Eye Segment." Journal of Histochemistry & Cytochemistry 56, no. 9 (June 23, 2008): 863–72. http://dx.doi.org/10.1369/jhc.2008.951392.

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Nita, Małgorzata, Barbara Strzałka-Mrozik, Andrzej Grzybowski, Wanda Romaniuk, and Urszula Mazurek. "Ophthalmic transplantology: Anterior segment of the eye – Part I." Medical Science Monitor 18, no. 5 (2012): RA64—RA72. http://dx.doi.org/10.12659/msm.882723.

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Romero, Francisco Javier, Bjørn Nicolaissen, and Cristina Peris-Martinez. "New Trends in Anterior Segment Diseases of the Eye." Journal of Ophthalmology 2014 (2014): 1–2. http://dx.doi.org/10.1155/2014/393040.

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Hadzi-Milic, Milan. "Diagnostics of anterior eye segment in cats and dogs." Veterinarski glasnik 60, no. 5-6 (2006): 407–11. http://dx.doi.org/10.2298/vetgl0606407h.

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Diagnostics of the anterior segment of the eye present the most frequent diagnostics implemented in ophthalmology and by most veterinary practicians as well. This paper presents the complete diagnostics in the most concise form possible. The procedure with animals is presented first, followed by the equipment, and then anamnesis. The following diagnostic methods are presented: examination in a lighted room which include an examination from a distance, taking a smear, the Schirmer tear test (STT), an examination from close by, examination in a dark room which comprises the elementary examinations, such as the use of focal lighting and examination using a direct ophthalmoscope, and special examination in a dark room, such as biomicroscopy, gonioscopy and keratoscopy. Additional examination methods are also included.

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WYATT, HARRY J. "Modelling Transport in the Anterior Segment of the Eye." Optometry and Vision Science 81, no. 4 (April 2004): 272–82. http://dx.doi.org/10.1097/00006324-200404000-00014.

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Silverman, Ronald H., Jonathan Cannata, K. Kirk Shung, Omer Gal, Monica Patel, Harriet O. Lloyd, Ernest J. Feleppa, and D. Jackson Coleman. "75 MHz Ultrasound Biomicroscopy of Anterior Segment of Eye." Ultrasonic Imaging 28, no. 3 (July 2006): 179–88. http://dx.doi.org/10.1177/016173460602800304.

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Fagerholm, Per. "Endogenous hyaluronan in the anterior segment of the eye." Progress in Retinal and Eye Research 15, no. 2 (January 1996): 281–96. http://dx.doi.org/10.1016/1350-9462(96)00004-3.

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Bialasiewicz, A. A., and K. Janssen. "Inflammatory Disorders of the Outer Eye and Anterior Segment." Eye & Contact Lens: Science & Clinical Practice 20, no. 3 (July 1994): 204. http://dx.doi.org/10.1097/00140068-199407000-00020.

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Sacchetti, Marta, Flavio Mantelli, and Alessandro Lambiase. "Autoimmune Diseases and the Anterior Segment of the Eye." Journal of Ophthalmology 2018 (November 1, 2018): 1–2. http://dx.doi.org/10.1155/2018/6029460.

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Collins, James F., Darlene A. Dartt, and Reza Dana. "Mist Delivery of Eye Medication to the Anterior Segment." American Journal of Ophthalmology 144, no. 1 (July 2007): 137–39. http://dx.doi.org/10.1016/j.ajo.2007.03.022.

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ALIO SANZ, JL, DP PINERO LLORENS, B. SIREROL, and L. BATAILLE. "Geometric characterization of anterior segment in the hen’s eye." Acta Ophthalmologica 86 (September 4, 2008): 0. http://dx.doi.org/10.1111/j.1755-3768.2008.417.x.

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Journal articles on the topic 'Anterior eye segment'

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