Relevant bibliographies by topics / Vertical cup disc ratio

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Vertical cup disc ratio'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Vertical cup disc ratio"

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Hakimzadeh, Naseh, Sakineh Kadivar, and Mohammad Reza Panjtan Panah. "Relationship between central corneal thickness and optic nerve head parameters in primary open-angle glaucoma." Medical hypothesis, discovery & innovation in optometry 5, no. 3 (2025): 119–26. https://doi.org/10.51329/mehdioptometry206.

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Background: Primary open-angle glaucoma (POAG) is an ocular entity that causes optic neuropathy. Thin central corneal thickness (CCT) in patients with POAG correlates with changes in various optic nerve head structural parameters. Additionally, racial differences exist in CCT and optic disc parameters. Herein, we assessed the potential relationship between CCT and optic nerve head parameters in treatment-naive patients of Persian ethnicity who were diagnosed with POAG of varying severity levels. Methods: This hospital-based analytical cross-sectional study recruited patients of Persian ethnici
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BARR, D. B., D. J. NOLAN;, D. F. GARWAY-HEATH, and R. A. HITCHINGS. "Vertical cup/disc ratio in relation to optic disc size." British Journal of Ophthalmology 83, no. 8 (1999): 994a. http://dx.doi.org/10.1136/bjo.83.8.994a.

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Qhisthana Pratika, Alva Rischa, Rita Magdalena, and R. Yunendah Nur Fuadah. "Klasifikasi Glaukoma Menggunakan Artificial Neural Network." Jurnal Ilmiah FIFO 12, no. 2 (2020): 179. http://dx.doi.org/10.22441/fifo.2020.v12i2.007.

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Abstract Glaucoma is an eye disease caused by increased eyeball pressure resulting in damage to the optic nerve and the second leading cause of blindness after cataracts. Nerve damage often occurs without symptoms so that an early examination can reduce the risk of glaucoma. Therefore, the authors designed a glaucoma detection system through eye fundal images that can facilitate the detection of glaucomaby extracting various features like Rim to Disc Ratio, Cup to Disc Ratio (CDR), Vertical Cup to Disc Ratio (VCDR), Horizontal Cup to Disc Ratio (HCDR), and Horizontal to Vertical CDR (H-V CDR)
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Manju, K., and R. S. Sabeenian. "Cup and Disc Ratio and Inferior, Superior, Temporal and Nasal Calculation for Glaucoma Identification." Journal of Medical Imaging and Health Informatics 9, no. 6 (2019): 1316–19. http://dx.doi.org/10.1166/jmihi.2019.2720.

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Glaucoma is the deadliest eye disease that steals the vision. Glaucoma is recorded as the second reason for vision loss. When identified it would have created 25% damage to the tissues and 50% vision loss. This has been so successful in stealing the vision because early detection of this eye disease is very difficult. This has catered the researchers. Early detection of glaucoma has always been challenging. In this paper, glaucoma is identified by checking two conditions namely Cup and Disc Ratio (CDR) and ISTN (Inferior, Superior, Temporal and Nasal) criterion. Both conditions must be satisfi
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Lao, Ji-Meng, Yi-Jing Chen, Jian-Bo Mao, and Li-Jun Shen. "Optic disc changes in patients less than 3 years of age with congenital cataract." International Journal of Ophthalmology 18, no. 3 (2025): 404–8. https://doi.org/10.18240/ijo.2025.03.05.

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AIM: To compare the cup-to-disc ratio (CDR) and optic disc morphology between eyes with congenital cataract and eyes without cataract in children under 3 years old. METHODS: This study included 63 patients with bilateral congenital cataract (mean age of 55.72±46.50wk, 44 were male), 33 patients with unilateral cataract (mean age of 56.63±33.23wk, 16 were male), and 31 age-matched healthy children (mean age of 55.80±29.29wk, 17 were male). Fundus photographs were taken with the RetCam 3 system. The horizontal-to-vertical disc diameter ratio (HVDR) was used as an index to describe the oval form
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Gong, Weifen, Xuehui Lu, and Geng Wang. "Asymmetry of Optic Nerve Head Parameters Measured by Confocal Scanning Laser Ophthalmoscopy in Myopic Anisometropic Eyes." Applied Sciences 12, no. 8 (2022): 4047. http://dx.doi.org/10.3390/app12084047.

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Background: This study aimed to evaluate the asymmetry of optic nerve head parameters measured by confocal scanning laser ophthalmoscopy (CSLO) in myopic anisometropic eyes. Methods: A total of 36 eyes of 18 healthy myopic anisometropic subjects, defined as cases in which the difference in spherical equivalent (SE) between both eyes is ≥1.5D, were recruited. The optic nerve heads were measured using the Heidelberg retina tomograph II (Heidelberg Engineering, GmBH, Heidelberg, Germany). Differences in optic nerve head parameters between more myopic eyes and fellow eyes were evaluated using the
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Chidi, Gift Nwokocha, N. Pedro-Egbe C., O. Adio A., and D. Komolafe R. "Correlation between Retinal Nerve Fiber Layer Thickness and Cup-to- Disc Ratio in Glaucoma Suspects Using Optical Coherence Tomography at University of Port Harcourt Teaching Hospital, Port Harcourt, Rivers State, Nigeria." British Journal of Medicine & Medical Research 21, no. 7 (2017): 1–10. https://doi.org/10.9734/BJMMR/2017/32918.

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<strong>Aim: </strong>To determine the correlation between retinal nerve fiber layer thickness and vertical cup disc ratio in glaucoma suspects in the University of Port Harcourt teaching hospital, Port Harcourt, Nigeria. <strong>Study Design:</strong> Hospital-based observational study conducted between October 2<sup>nd</sup>, 2012 and January 31<sup>st</sup> 2013. <strong>Methodology: </strong>Participants were selected using consecutive allocation of glaucoma suspects as they presented to the glaucoma clinic. Observations were done using the Optical Coherence Tomography machine. Data was an
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Sharma, Sweety, Alok Ranjan, and Tathagata Roy. "Profile and Clinical Characteristics of Newly Diagnosed Glaucoma in Tertiary Eye Hospital in North India." International Journal of Health Sciences and Research 14, no. 12 (2024): 127–35. https://doi.org/10.52403/ijhsr.20241215.

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PURPOSE: This study aims to assess the clinical profile and characteristics of newly diagnosed glaucoma in tertiary eye hospital in North India. METHODS: All the newly diagnosed glaucoma patients were enrolled in this study who came for the routine eye examination at our tertiary eye Hospital, Dr Shroff’s Charity Eye Hospital, New Delhi between November 2021 and October 2022. A detailed history was obtained and all the glaucoma investigations were performed including best corrected visual acuity, Van Herrick grading, gonioscopy, optic disc assessment with 90D lens, applanation tonometry, Cirru
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Ramrattan, R. "Age and gender differences in optic disc area, cup area and vertical cup-to-disc ratio? The Rotterdam study." Vision Research 35, no. 1 (1995): S156. http://dx.doi.org/10.1016/0042-6989(95)98584-v.

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Civcic-Kalinic, Natasa, Miroslav Stamenkovic, Nada Civcic, and Stefan Brunet. "Relationship between optic nerve head topography and nerve fiber layer thickness with central corneal thickness in patients with primary open-angle glaucoma." Srpski arhiv za celokupno lekarstvo, no. 00 (2020): 66. http://dx.doi.org/10.2298/sarh191126066c.

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Introduction/Objective. In patients with primary open-angle glaucoma (POAG) we explored the relationship between optic nerve head (ONH) topography parameters and retinal nerve fiber layer (RNFL) thickness with central corneal thickness (CCT). Methods. This retrospective study included 97 patients (97 eyes) with primary open-angle glaucoma. Patients were divided into a thin CCT&lt;540?m (45 eyes) and a thick CCT?540?m (52 eyes) group, using ultrasonic pachymeter. Topographic measurements of the ONH parameters and RNFL thickness was performed using optical coherence tomography (OCT). The outcome
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Dissertations / Theses on the topic "Vertical cup disc ratio"

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Ribeiro, Junior Valdenir. "Comparação entre as medidas lineares da relação escavação/disco óptico obtidas com o OCT RTVue e a retinografia digital." Universidade Federal de Goiás, 2014. http://repositorio.bc.ufg.br/tede/handle/tede/4504.

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Submitted by Erika Demachki (erikademachki@gmail.com) on 2015-05-11T20:23:53Z No. of bitstreams: 3 Dissertação - Valdenir Ribeiro Júnior - 2014.pdf: 1448512 bytes, checksum: 318b3171b4b9dbe4d3d79bea1af6ca77 (MD5) PARECER CONSUBSTANCIADO.pdf: 29881 bytes, checksum: a11bf6a7fd5e3fd476da07a1a90abf93 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Erika Demachki (erikademachki@gmail.com) on 2015-05-11T20:32:27Z (GMT) No. of bitstreams: 3 Dissertação - Valdenir Ribeiro Júnior - 2014.pdf: 1448512 bytes, checksum: 318b3171b4b9dbe4
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Chen, Chi-Wen, and 陳麒文. "Study of stress distribution in different race of people, ages and cup-disc ratio of Angle-closure Glaucoma." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/09414021109821545939.

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碩士<br>淡江大學<br>機械與機電工程學系碩士班<br>104<br>This study explores the damage of optic disc in different Cup-disc ratio due to Angle-closure Glaucoma. When aqueous fluid gets blocked in floating across Iris, intraocular pressure will increase sharply. After this, the increased intraocular pressure transfers to posterior part of eye, injuring optic disc, raising the Cup-disc ratio, and then causing visual defect. This study includes comprehensive design of an eye model. According to concurrency mechanism of Angle-closure Glaucoma, I conduct simulation to discuss the damage of optic disc in different Cup-
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Book chapters on the topic "Vertical cup disc ratio"

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Hatanaka, Yuji, Atsushi Noudo, Chisako Muramatsu, et al. "Automatic Measurement of Vertical Cup-to-Disc Ratio on Retinal Fundus Images." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13923-9_7.

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Zhao, Xin, Fan Guo, Beiji Zou, Xiyao Liu, and Rongchang Zhao. "Automatic Measurement of Cup-to-Disc Ratio for Retinal Images." In Pattern Recognition and Computer Vision. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-03398-9_39.

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Wu, Menglin, Theodore Leng, Luis de Sisternes, Daniel L. Rubin, and Qiang Chen. "Segmentation of Optic Disc and Cup-to-Disc Ratio Quantification Based on OCT Scans." In Biological and Medical Physics, Biomedical Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-1825-2_8.

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Chauhan, Kinjan, and Ravi Gulati. "Diagnosis of Glaucoma Using Cup to Disc Ratio in Stratus OCT Retinal Images." In Proceedings of First International Conference on Information and Communication Technology for Intelligent Systems: Volume 1. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30933-0_51.

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Hatanaka, Y., K. Fukuta, C. Muramatsu, et al. "Automated Measurement of Cup-to-Disc Ratio for Diagnosing Glaucoma in Retinal Fundus Images." In IFMBE Proceedings. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03891-4_53.

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Mishra, Nidhi, and Patil Manisha Prashant. "Using K-means Clustering with Ellipse Fitting Comparison and Morphological Operation, The Cup-to-Disc Ratio is Evaluated for the Purpose of Detecting Glaucoma by Optic Cup and Disc Segmentation." In Recent Developments in Microbiology, Biotechnology and Pharmaceutical Sciences. CRC Press, 2025. https://doi.org/10.1201/9781003618140-60.

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Fondón, Irene, Francisco Núñez, Mercedes Tirado, et al. "Automatic Cup-to-Disc Ratio Estimation Using Active Contours and Color Clustering in Fundus Images for Glaucoma Diagnosis." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31298-4_46.

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Penman, Alan D., Kimberly W. Crowder, and William M. Watkins. "Topical Ocular Hypotensive Medication to Delay or Prevent the Onset of Primary Open-Angle Glaucoma." In 50 Studies Every Ophthalmologist Should Know. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780190050726.003.0015.

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The Ocular Hypertension Treatment Study (OHTS) was a randomized, open, placebo-controlled, clinical trial to determine whether reducing intraocular pressure (IOP) in eyes with ocular hypertension (OHTN) reduced the risk of developing primary open-angle glaucoma (POAG). The study found that topical ocular hypotensive medication was effective in delaying or preventing the development of glaucomatous optic neuropathy in eyes with OHTN. However, the authors recommended stratifying risk in patients with OHTN using variables such as baseline age, vertical and horizontal cup-to-disc ratio, visual fie
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Shiny Priyadarshini J. and Gladis D. "Quantifying Cup-to-Disk Ratio Analogy Through k-Means for Glaucoma Screening." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2018. https://doi.org/10.3233/978-1-61499-927-0-237.

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The Ocular cup-to-disc ratio is one of the habitual screening procedures done prior to the endorsement of glaucoma disorders. Glaucoma is one of the most dominant eye malfunctions which leads to perpetual vision loss hence retinal segmentation plays a censorious role in diagnosis of optic disc and cup. This paper highlights a very simple and straight forward approach to suspect glaucoma through k-means and a meticulous study has been made for CDR estimation. The Optic disc and cup are segmented as clusters and its CDR is calculated through mathematical quantifications. The results are tabulate
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Dash, Sonali, Priyadarsan Parida, Vinay Kumar Nassa, A. Shaji George, Aakifa Shahul, and A. S. Hovan George. "Glaucoma Assessment Using Super Pixel Classification." In Handbook of Research on Thrust Technologies’ Effect on Image Processing. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-8618-4.ch019.

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A series of illnesses known as glaucoma harm the optic nerve in the eye. Glaucoma can cause lifelong blindness or vision loss if it is not addressed. Because glaucoma frequently has no symptoms in its early stages, it is particularly difficult. If symptoms start to show up, it might be too late to stop blindness. There are numerous ways to identify glaucoma, including tonometry, which measures the pressure inside the eye, ophthalmoscopy, which looks at the optic nerve's form and color, and perimeter, which measures the entire field of vision. However, because of the fact that each person's gla
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Conference papers on the topic "Vertical cup disc ratio"

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Murugan, K. Sakthi, G. L. Karthik, R. Latha, Sundara Rajulu Navaneethakrishnan, J. Kirubakaran, and T. R. Ganesh Babu. "Analysis of Cup to Disc Ratio Using Fundus and Optical Coherence Tomography Images." In 2024 9th International Conference on Communication and Electronics Systems (ICCES). IEEE, 2024. https://doi.org/10.1109/icces63552.2024.10860263.

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Liu, Xiaohan, Menghan Hu, and Yue Wu. "Prediction of Cup-to-Disc Ratio Progression Based on Longitudinal Datasets of Glaucoma Patients." In 2024 7th International Conference on Information Communication and Signal Processing (ICICSP). IEEE, 2024. https://doi.org/10.1109/icicsp62589.2024.10809027.

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Reddy, CH Venkateswara, K. Vidhya, and EMG Subramanian. "Expression of Concern for: Evaluation of Cup to Disc Ratio for Glaucoma detection through optic cup and disc segmentation using Fuzzy C-means clustering and comparing with adaptive thresholding method." In 2022 14th International Conference on Mathematics, Actuarial Science, Computer Science and Statistics (MACS). IEEE, 2022. http://dx.doi.org/10.1109/macs56771.2022.10703547.

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Sabarish, R., R. Hariharan, R. J. Golden Renjith Nimal, and R. Sangamaeswaran. "Automotive Multi-Leaf Spring Design and Optimization through FEA." In International Conference on Design, Materials and Metaheuristic Algorithms for Engineering. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-4qyh6t.

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As a result of the high strength-to-weight ratio, the automobile industry is becoming increasingly interested in replacing steel springs with composite leaf springs. The task at hand is to swap out some steel springs for alloy springs. The car's suspension impacts how comfortable it is to drive and how much damage it sustains. The leaf spring group's primary role is to support the suspension element's vertical load. The contact between the blades makes adjusting the crossbow's action more difficult. The goal of this article is to replace steel multi-disc springs with single joint springs that
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Hatanaka, Yuji, Atsushi Noudo, Chisako Muramatsu, et al. "Vertical cup-to-disc ratio measurement for diagnosis of glaucoma on fundus images." In SPIE Medical Imaging, edited by Nico Karssemeijer and Ronald M. Summers. SPIE, 2010. http://dx.doi.org/10.1117/12.843775.

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Santos, Elineide, Lurs Santos, Rodrigo Veras, Marcos Frazao, and Daniel Leite. "A Semiautomatic Superpixel Based Approach to Cup-to-Disc Ratio Measurement." In 2018 IEEE Symposium on Computers and Communications (ISCC). IEEE, 2018. http://dx.doi.org/10.1109/iscc.2018.8538765.

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Joshua, Afolabi O., Gugulethu Mabuza-Hocquet, and Fulufhelo V. Nelwamondo. "Assessment of the Cup-to-Disc ratio method for Glaucoma detection." In 2020 International SAUPEC/RobMech/PRASA Conference. IEEE, 2020. http://dx.doi.org/10.1109/saupec/robmech/prasa48453.2020.9041005.

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Murthi, A., and M. Madheswaran. "Enhancement of optic cup to disc ratio detection in glaucoma diagnosis." In 2012 International Conference on Computer Communication and Informatics (ICCCI). IEEE, 2012. http://dx.doi.org/10.1109/iccci.2012.6158789.

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Liu, J., D. W. K. Wong, J. H. Lim, et al. "Optic cup and disk extraction from retinal fundus images for determination of cup-to-disc ratio." In 2008 3rd IEEE Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2008. http://dx.doi.org/10.1109/iciea.2008.4582835.

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Patil, Dnyaneshwari D., Ramesh R. Manza, Gangadevi C. Bedke, and Dipali D. Rathod. "Development of primary glaucoma classification technique using optic cup & disc ratio." In 2015 International Conference on Pervasive Computing (ICPC). IEEE, 2015. http://dx.doi.org/10.1109/pervasive.2015.7087139.

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