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Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
Correlation of visual functions with macular thickness in primary open angle glaucoma
Siddharth Agrawal1, Vinita Singh, Shashi Kumar Bhasker
1Department of Ophthalmology, King Georges' Medical University, Lucknow, Uttar Pradesh, India.
Oman Journal of Ophthalmology
|October 2, 2013
Summary
In primary open angle glaucoma (POAG), macular thickness measured by optical coherence tomography (OCT) directly correlates with visual acuity and contrast sensitivity (CS). Thicker macula indicates better visual function in POAG patients.
Area of Science:
- Ophthalmology
- Glaucoma Research
- Retinal Imaging
Background:
- Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness.
- Assessing visual function in POAG is crucial for monitoring disease progression.
- Optical coherence tomography (OCT) provides detailed macular structure information.
Purpose of the Study:
- To investigate the relationship between macular thickness and visual functions in POAG.
- To determine if optical coherence tomography (OCT) measurements correlate with visual acuity and contrast sensitivity (CS) in POAG patients.
Main Methods:
- Cross-sectional study involving 50 patients with established POAG (aged 40-70).
- Evaluated best-corrected visual acuity (BCVA), contrast sensitivity (CS), and macular thickness using spectral-domain OCT.
- Statistical analysis included one-factor ANOVA and Newman-Keuls post-hoc tests.
Main Results:
- A statistically significant direct relationship was found between macular thickness and BCVA (P < 0.05).
- Macular thickness also showed a significant direct correlation with contrast sensitivity (CS) (P < 0.05).
- These findings suggest that greater macular thickness is associated with better visual function in POAG.
Conclusions:
- Macular thickness, as measured by OCT, is a significant indicator of visual function in POAG.
- Both visual acuity and contrast sensitivity are directly related to macular thickness in established POAG.
- OCT-derived macular thickness may serve as a valuable biomarker for visual function in glaucoma management.
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