scholarly journals Luminance Thresholds and Their Correlation With Retinal Structure in X-Linked Retinoschisis

2021 ◽  
Vol 62 (13) ◽  
pp. 25
Author(s):  
J. Jason McAnany ◽  
Jason C. Park ◽  
Gerald A. Fishman ◽  
Robert A. Hyde
Keyword(s):  
Retinal Structure

INTEGRATING FUZZY C-MEANS AND MAHALANOBIS METRIC CLASSIFICATION FOR EXUDATE DETECTION IN COLOR FUNDUS IMAGING

2015 ◽  
Vol 15 (05) ◽  
pp. 1550085 ◽  
Author(s):  
MADHURI TASGAONKAR ◽  
MADHURI KHAMBETE
Keyword(s):  
Diabetic Retinopathy ◽  
Early Detection ◽  
Ground Truth ◽  
Vital Role ◽  
Detection Accuracy ◽  
Fuzzy C Means ◽  
Fundus Imaging ◽  
Imaging Detection ◽  
Retinal Structure

Diabetes affects retinal structure of a diabetic patient by generating various lesions. Early detection of these lesions can avoid the loss of vision. Automation of detection process can be made easily feasible to masses by the use of fundus imaging. Detection of exudates is significant in diabetic retinopathy (DR) as they are earlier signs and can cause blindness. Finding the exact location as well as correct number of exudates play vital role in the overall treatment of a patient. This paper presents an algorithm for automatic detection of exudates for DR. The algorithm combines the advantages of supervised and unsupervised techniques. It uses fuzzy-C means (FCM) segmentation on coarse level and mahalanobis metric for finer classification of segmented pixels. Mahalanobis criterion gives significance to most relevant features and thus proves a better classifier. The results are validated using DIARETDB0 and DIARETDB1 databases and the ground truth provided with it. This evaluation provided 95.77% detection accuracy.

scholarly journals Clinical relevance of retinal structure in children with laser-treated retinopathy of prematurity versus controls - using optical coherence tomography

2017 ◽  
Vol 96 (2) ◽  
pp. e222-e228 ◽  
Author(s):  
Florina Stoica ◽  
Adela Chirita-Emandi ◽  
Nicoleta Andreescu ◽  
Alina Stanciu ◽  
Cristian G. Zimbru ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Retinopathy Of Prematurity ◽  
Clinical Relevance ◽  
Optical Coherence ◽  
Retinal Structure

scholarly journals Assessment of visual function and retinal structure following acute light exposure in the light sensitive T4R rhodopsin mutant dog

2016 ◽  
Vol 146 ◽  
pp. 341-353 ◽  
Author(s):  
Simone Iwabe ◽  
Gui-Shuang Ying ◽  
Gustavo D. Aguirre ◽  
William A. Beltran
Keyword(s):  
Visual Function ◽  
Light Exposure ◽  
Retinal Structure

Retinal Structure in Amplyopia

Ophthalmology ◽  
2009 ◽  
Vol 116 (10) ◽  
pp. 2041-2041 ◽  
Author(s):  
Chameen Samarawickrama ◽  
Son C. Huynh ◽  
Paul Mitchell
Keyword(s):  
Retinal Structure

Evaluation of Retinal Structure in Pediatric Subjects with Vitamin D Deficiency

2021 ◽  
Author(s):  
Emre Aydemir ◽  
Cagri Ilhan ◽  
Gozde Aksoy Aydemir ◽  
Alper Halil Bayat ◽  
Semih Bolu ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Retinal Structure

Progressive Changes in the Retinal Structure of Patients with Parkinson’s Disease

2018 ◽  
Vol 8 (1) ◽  
pp. 85-92 ◽  
Author(s):  
Li-Jing Ma ◽  
Ling-Li Xu ◽  
Cheng-jie Mao ◽  
Yun-Ting Fu ◽  
Xiao-Yan Ji ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Retinal Structure

scholarly journals Functional and Structural Effects of Erythropoietin Subconjunctival Administration in Glaucomatous Animals

2018 ◽  
Vol 3 (2) ◽  
pp. 1-11 ◽  
Author(s):  
Ana Paula Resende ◽  
Serge G. Rosolen ◽  
Telmo Nunes ◽  
Berta São Braz ◽  
Esmeralda Delgado
Keyword(s):  
Neuroprotective Effect ◽  
Treated Group ◽  
Retinal Function ◽  
Function Evaluation ◽  
Control Group ◽  
Albino Rats ◽  
Subconjunctival Injection ◽  
Beneficial Effects ◽  
Structural Evaluation ◽  
Retinal Structure

Purpose: The present study aimed to assess functional and structural benefits of erythropoietin (EPO) when administered subconjunctivally in the retina of glaucomatous rats using electroretinography (ERG) and retinal thickness (RT) measurements. Methods: Glaucoma was experimentally induced in 26 Wistar Hannover albino rats. Animals were divided into 2 groups of 13 animals each: a treated group receiving a unique subconjunctival injection of 1,000 IU of EPO and a control group receiving a saline solution. In each group, 7 animals were used for retinal function evaluation (ERG) and 6 animals were used for retinal structural evaluation (histology). RT was measured, dorsally and ventrally, at 500 μm (RT1) and at 1,500 μm (RT2) from the optic nerve. Results: Retinal function evaluation: for both scotopic and photopic conditions, ERG wave amplitudes increased in the treated group. This increase was statistically significant (p < 0.05) in photopic conditions. Structural evaluation: for both locations RT1 and RT2, the retinas were significantly (p < 0.05) thicker in the treated group. Conclusion: Subconjunctival EPO administration showed beneficial effects both on retinal structure and on retinal function in induced glaucoma in albino rats. This neuroprotective effect should be applied in other animal species.

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