Academic literature on the topic 'Cornea Eye'

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Journal articles on the topic "Cornea Eye"

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Daxer, Albert. "Biomechanics of the Cornea." International Journal of Keratoconus and Ectatic Corneal Diseases 3, no. 2 (2014): 57–62. http://dx.doi.org/10.5005/jp-journals-10025-1080.

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ABSTRACT The purpose of this article is to provide an applicable and easy-to-use mathematical model of the biomechanics of the cornea. The new spherical dome model considers not only the heterogeneity of the tunica of the eye and distinguishes structurally between cornea, limbus and sclera. It also implements the structural anisotropy inside the corneal stroma caused by the corneas lamellar structure as well as the asphericity of the corneal shape. How to cite this article Daxer A. Biomechanics of the Cornea. Int J Kerat Ect Cor Dis 2014;3(2):57-62.
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Neha Singh, Jat. "Donor profile and trends of eye donation in Central India." International Journal of Clinical and Experimental Ophthalmology 5, no. 1 (2021): 005–8. http://dx.doi.org/10.29328/journal.ijceo.1001035.

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Background: The present study was conducted to study the donor profile and to assess the trends of cornea donation. Methodology: This was conducted as a hospital based cross sectional study at a tertiary care centre in Central India for a period of 5 years. Data was retrieved from 70 patients from eye bank who filled form of eye donation at Eye bank of our institution. Sociodemographic profile of donors, cause of death and time since death was recorded. Source of information regarding corneal donation and reason for not willing to donate the cornea for research purpose was recorded from the fi
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Terzariol, Mariana, Paula S. Hünning, Gustavo Brambatti, Luciane de Albuquerque, Carolina Neumann, and João A. T. Pigatto. "Effects of intracameral brilliant blue on the corneal endothelium of swine: in vitro study." Pesquisa Veterinária Brasileira 36, no. 8 (2016): 775–80. http://dx.doi.org/10.1590/s0100-736x2016000800016.

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Abstract: The aim was to investigate the ultrastructural changes in the corneal endothelium of pigs induced by intracameral 0.05% brilliant blue. Twenty swine corneas were separated into two groups, the right eye bulbs (control group) and the left eye bulbs (experimental group) of the same animal. All the eye bulbs were evaluated with specular microscopy. The cornea of the right eye bulbs was excised and in the left eye bulbs 0.2ml of 0.05% brilliant blue vital dye (OPTH-blue±) was injected into the anterior chamber, where it remained for one minute. Then the anterior chamber was cleaned with
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Safi, Tarek, Loay Daas, Gian-Luca Kiefer, et al. "Semiquantitative Criteria in the Eye Bank That Correlate with Cornea Guttata in Donor Corneas." Klinische Monatsblätter für Augenheilkunde 238, no. 06 (2021): 680–87. http://dx.doi.org/10.1055/a-1498-1846.

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Abstract Background Cornea guttata may not be recognized in the eye bank and recent studies have displayed that guttae are transplanted in about 15% of cases in varying severities. The purpose of this study was to establish semiquantitative criteria for the detection of cornea guttata in donor corneas in the eye bank. Methods In this retrospective cohort study, preoperative endothelial pictures of donor corneas were collected and classified according to the post-penetrating keratoplasty cornea guttata grade into three distinct groups: group 1 consists of healthy corneas with no guttae (guttata
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Pai, Vijay, Jayaram Shetty, and Hrishikesh Amin. "TRANSPOSITIONAL AUTOKERATOPLASTY." Journal of Health and Allied Sciences NU 01, no. 01/03 (2011): 54–56. http://dx.doi.org/10.1055/s-0040-1703521.

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AbstractRejection is the most common cause for corneal graft failure1,2. Therefore, for obvious reason, ideal material for corneal graft is the host's own cornea, either from the same eye or the fellow eye, which is totally blind from the cause that leaves the cornea healthy and intact or possibly, from an identical twin, that has a cornea to spare for the same reason. Herewith, we report a case of Transpositional Autokeratoplasty.
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Shirai, Kumi, Yuka Okada, Yasushi Nakamura, and Shizuya Saika. "Histopathological Features in a Case of Peters' Anomaly with Acquired Corneal Staphyloma." Case Reports in Ophthalmological Medicine 2011 (2011): 1–5. http://dx.doi.org/10.1155/2011/418048.

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We report a case of corneal staphyloma histologically diagnosed as caused by Peters' anomaly. A 62-year-old male had a protruding opaque vascularized cornea that began to bulge from six months ago in the right eye. Since his right eye was blind and he wanted us to remove the eyeball for cosmetic improvement, we enucleated the affected eye. The enucleated tissue was fixed in formalin and embedded in paraffin for histological examination. Hematoxylin and eosin staining showed that the cornea lacked the posterior part of the corneal stroma and Descemet's membrane in the central region and the ent
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Singh, Manmohan, Achuth Nair, Salavat R. Aglyamov, and Kirill V. Larin. "Compressional Optical Coherence Elastography of the Cornea." Photonics 8, no. 4 (2021): 111. http://dx.doi.org/10.3390/photonics8040111.

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Assessing the biomechanical properties of the cornea is crucial for detecting the onset and progression of eye diseases. In this work, we demonstrate the application of compression-based optical coherence elastography (OCE) to measure the biomechanical properties of the cornea under various conditions, including validation in an in situ rabbit model and a demonstration of feasibility for in vivo measurements. Our results show a stark increase in the stiffness of the corneas as IOP was increased. Moreover, UV-A/riboflavin corneal collagen crosslinking (CXL) also dramatically increased the stiff
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Frentz, Markus, Miriam Goss, Martin Reim, and Norbert F. Schrage. "Repeated Exposure to Benzalkonium Chloride in the Ex Vivo Eye Irritation Test (EVEIT): Observation of Isolated Corneal Damage and Healing." Alternatives to Laboratory Animals 36, no. 1 (2008): 25–32. http://dx.doi.org/10.1177/026119290803600105.

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The prediction of side-effects is a key issue in the REACH initiative on chemicals, in the production of cosmetics and in the preclinical testing of drugs. A new ex vivo test for repeated substance application is presented, that is able to identify corrosive and irritant effects on the eye by using crucial endpoints, such as cellular and morphological damage, and healing characteristics. The test is intended to replace the Draize eye test and to improve the preclinical testing of drugs and chemicals that are likely to come into direct contact with the cornea. The Ex Vivo Eye Irritation Test (E
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Ong, Keith, and Leonard Ong. "Benzalkonium chloride corneal toxicity post-cataract surgery." Asian Journal of Ophthalmology 17, no. 1 (2020): 56–60. http://dx.doi.org/10.35119/asjoo.v17i1.620.

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Two patients with presumed benzalkonium chloride (BAK) corneal toxicity after routine cataract surgery are presented. Patient 1 had corneal stroma and Descemet’s membrane folds. Patient 2 had moderate superficial punctate epithelial erosions (SPEE). They were on Chlorsig, Maxidex, and Acular eye drops tds postoperatively. The corneas of these two patients improved when BAK was removed or minimized from the postoperative eye drop regimen. Two vials of 1 ml dexamethasone 4mg/ml for injection were added to Chlorsig 10 ml bottle to substitute for Maxidex eye drops.
 BAK toxicity should be sus
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Bhayana, AmberAmar, Priyanka Prasad, and Anita Gupta. "Enantiomorphism - Cornea for a cornea, eye for an eye." Indian Journal of Ophthalmology 68, no. 6 (2020): 1181. http://dx.doi.org/10.4103/ijo.ijo_1785_19.

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Dissertations / Theses on the topic "Cornea Eye"

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Chmulíková, Mária. "Očné centrum Cornea." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372034.

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The subject of the master thesis is the design of an eye center. It’s a three-floored building, where in the first floor is designed eye optics, pharmacy and main entrance to the eye center. During the design of the building, emphasis is placed on people with reduced mobility and orientation, technical building solution, thermal technical solution, as well as the assessment of fire safety. On the second floor there is an eye clinic and an operating theatre. On the third floor there are designed an operating theatre, a conference room and offices. The two types of roofs are designed - a vegetat
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Lee, Graham Andrew. "Advances in anterior segment disease / Graham A. Lee." [St. Lucia, Qld.], 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18442.pdf.

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Jonuscheit, Sven. "Characteristics of the cornea in the myopic human eye." Thesis, Glasgow Caledonian University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492392.

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The objective of the present studies was to assess whether there were predictable differences in the thickness of the human cornea in relation to stable manifest refractive error using a scanning slit optical topography method (Orbscan II).
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Chandler, Heather Lynn. "Epithelial-mesenchymal transition in the anterior segment of the eye." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1154533588.

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Yu, Wing-yan, and 余泳欣. "Study of stem/progenitor cells located in the posterior limbus of the eye." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/197119.

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Some stem-like cells that have received limited attention but may be of considerable clinical value reside in the transition zone between the corneal endothelium (CE) and trabecular meshwork (TM) at the posterior limbus of the eyes. A growing body of evidence has revealed that these cells may be able to rejuvenate the CE, TM or both. However, these stem-like cells have not been clearly defined and we have thus named them PET cells (Progenitor cells of the Endothelium and Trabeculum). Both the CE and TM cells are unique cell types in the eye that do not normally replace themselves once they
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Lam, Wing-wah Phoebe. "A systematic review of postoperative treatments for laser eye surgery." Hong Kong : University of Hong Kong, 2002. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25549686.

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Zderic, Vesna. "Ultrasound-enhanced ocular drug delivery /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/8085.

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Carnell, Peter Hamilton. "A finite element model for estimating mechanical properties of the cornea." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/17946.

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Porter, Louise. "Brittle cornea syndrome : molecular characterisation of a multisystem disorder." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/brittle-cornea-syndrome-molecular-characterisation-of-a-multisystem-disorder(6a34fd5d-14ac-40cc-9206-1caf06c9ef51).html.

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Brittle cornea syndrome (BCS) is an autosomal recessive, multisystemic connective tissue disorder characterised by extreme corneal thinning and fragility. Mutations in transcription factors ZNF469 and PRDM5 cause BCS types 1 and 2, respectively. Both genes are believed to regulate the transcription of extracellular matrix (ECM) components, particularly fibrillar collagens, and are suggested to act on a common pathway. Molecular diagnosis is available for affected patients, and those at risk of being heterozygous carriers. Chapter 3 presents the identification of mutations in ZNF469 in 14 famil
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Hinel, Erich Anthony. "The Use of Fluorescent Quenching in Studying the Contribution of Evaporation to Tear Thinning." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1274317750.

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Books on the topic "Cornea Eye"

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Krachmer, Jay H. Cornea. 2nd ed. Elsevier Mosby, 2005.

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Krachmer, Jay H. Cornea. Mosby, 1997.

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Krachmer, Jay H. Cornea. 2nd ed. Elsevier/Mosby, 2005.

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Krachmer, Jay H. Cornea. 2nd ed. Elsevier/Mosby, 2005.

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A, Palay David, ed. Cornea color atlas. Mosby, 1995.

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Reinhard, Thomas, and Frank Larkin, eds. Cornea and External Eye Disease. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-85544-6.

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Reinhard, Thomas, and Frank Larkin, eds. Cornea and External Eye Disease. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-33681-5.

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Reinhard, Thomas, and D. F. P. Larkin, eds. Cornea and External Eye Disease. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-31226-9.

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Westerhouse, Alan N. Eye research developments: Glaucoma, corneal transplantation, and bacterial eye infections. Nova Biomedical Books, 2009.

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Polack, Frank M. External diseases of the eye. Ediciones Scriba, 1991.

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Book chapters on the topic "Cornea Eye"

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Kivelä, Tero, Elisabeth M. Messmer, and Beata Rymgayłło-Jankowska. "Cornea." In Eye Pathology. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-43382-9_3.

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Berman, Elaine R. "Cornea." In Biochemistry of the Eye. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4757-9441-0_3.

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Davson, Hugh. "The Cornea." In Physiology of the Eye. Macmillan Education UK, 1990. http://dx.doi.org/10.1007/978-1-349-09997-9_3.

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Hinzpeter, E. N., and G. O. H. Naumann. "Cornea and Sclera." In Pathology of the Eye. Springer New York, 1986. http://dx.doi.org/10.1007/978-1-4613-8525-7_7.

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Lee, Jong-Soo. "Conjunctiva and Cornea Exam." In Primary Eye Examination. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-10-6940-6_9.

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Schroeter, Jan, and Peter Rieck. "Endothelial Evaluation in the Cornea Bank." In Eye Banking. KARGER, 2009. http://dx.doi.org/10.1159/000223838.

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Eisner, Georg. "Operations on the Cornea and Sclera." In Eye Surgery. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-71799-4_7.

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Fay, Jonathan, and George J. Florakis. "Cornea Transplantation." In The Columbia Guide to Basic Elements of Eye Care. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-10886-1_14.

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Carlton, William W., and James A. Render. "Calcification of the Cornea, Mouse and Rat." In Eye and Ear. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76640-4_2.

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AlRyalat, Saif Aldeen Saleh. "Basics of Cornea and Limbus for Ophthalmology Board Exams." In Eye Yield. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2968-6_6.

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Conference papers on the topic "Cornea Eye"

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Khan, Salman N., and Panos S. Shiakolas. "To Understand Myopic Alleviation by Conducting Finite Element Structural Analysis of a Cornea With an Intrastromal Corneal Ring Implant." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51515.

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Myopia or shortsightedness is a visual impairment condition that is affecting more than 32 million Americans according to the American Academy of Ophthalmology, and this number is expected to increase even further with the increasing life expectancy in the United States. Myopia occurs when light rays entering the cornea are focused in front of the retina due to: high corneal curvature, short axial length of the eye, or high optical power of the natural lens. These reasons suggest that light refracting elements play a pivotal role in determining visual acuity. The cornea is the principal refrac
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Zuclich, Joseph A. "Ultraviolet laser effects on the cornea." In Laser Safety, Eyesafe Laser Systems, and Laser Eye Protection, edited by Penelope K. Bryan and David H. Sliney. SPIE, 1990. http://dx.doi.org/10.1117/12.17830.

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Mohammad Nejad, Talisa, and Craig D. Foster. "Finite Element Modeling of Mouse Cornea and Studying Formation of Spiral Patterns on Epithelium." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14148.

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The cornea is a transparent tissue covering the front of the eye that refracts the light rays and therefore plays a great role in focusing ability of the eye (1). A slight change in the geometry of the cornea leads to a notable change in its focusing function. Therefore, the understanding of cornea mechanics is of utmost importance to better analyze the focusing ability of the eye.
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Wu, Zheng-Han, and Horng-Horng Lin. "Eye detection using gradient histogram matching for cornea localization in refractive eye surgery." In 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI). IEEE, 2017. http://dx.doi.org/10.1109/cisp-bmei.2017.8302191.

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Shafahi, Maryam, and Kambiz Vafai. "Thermal Modeling of the Human Eye as a Porous Structure." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88138.

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Human eye is one of the most sensitive parts of the body when exposed to radiation effects. Since there is no barrier (such as skin) to protect the eye against the absorption of the external thermal waves, radiation can readily interact with cornea. On the other hand, lack of blood flow in the interior part of the eye makes it more vulnerable compared to other organs even in the case of weak heat interaction. Further, blood flow circulation alone cannot establish thermal equilibrium between the eye and body organs effectively. There are limitations in measuring human eye temperature profile ex
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Ziegler, Kimberly A., and Thao D. Nguyen. "Modeling Study Incorporating Depth-Dependent Transverse Reinforcement due to Variation in Collagen Lamellae Interweaving in Corneal Tissue." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80771.

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The cornea is crucial for maintaining refraction and focusing ability of the eye. Small alterations in mechanical behavior of the tissue can cause changes in curvature and structure of the cornea, having adverse affects on visual acuity. Since the corneal stroma makes up 90% of corneal thickness and contains a majority of the tissue’s collagen content, it is considered the dominant contributor to the tissue’s mechanical strength and stiffness, which originates from a complex fiber-reinforced structure [1]. It has been shown that collagen lamellae (comprised of type I collagen fibrils) within a
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Khin, Maung H. "Birefringence of the in vivo cornea of the eye." In 17th Congress of the International Commission for Optics: Optics for Science and New Technology. SPIE, 1996. http://dx.doi.org/10.1117/12.2316191.

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Angeluts, A. A., A. V. Balakin, M. D. Mishchenko, et al. "Application of THz reflectometry to eye cornea hydration measurements." In 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz). IEEE, 2016. http://dx.doi.org/10.1109/irmmw-thz.2016.7758909.

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Zhang, Li, Willem F. Wolkers, and Alptekin Aksan. "Thermal Damage Distribution in Human Cornea Following Thermal Keratoplasty: An FTIR Study." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-176239.

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Hyperopia (farsightedness) and presbyopia are two common eye diseases, especially seen in the elderly. In both cases, eyes lose the ability to focus on nearby objects due to change in the cornea shape or stiffening of the lens. In recent years, thermal treatment of cornea in the form of Conductive Keratoplasty (CK) procedures has been successfully utilized to reshape the cornea. In the CK treatment, a thin radiofrequency (RF) probe is inserted into the cornea and heat is delivered into the stroma [1]. The heat treatment causes collagen denaturation and mechanical shrinkage of the collagen fibe
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Amini, Rouzbeh, Julie E. Whitcomb, Muhammad K. Al-Qaisi, Taner Akkin, and Victor H. Barocas. "The Effect of the Posterior Location of the Dilator on the Iris Concavity." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-205186.

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Aqueous humor (AH) constantly flows in the anterior eye to provide avascular tissues, notably the lens and cornea, with oxygen and nutrients. If AH outflow is impeded, the normal intraocular pressure could reach to dangerous levels. In angle closure, the abnormal shape and position of the iris is directly related to the blockage of the outflow. In particular, when the peripheral iris moves forward, it may narrow or close the angle between the iris and cornea, where most of AH leaves the anterior eye.
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