Structure-function Relationships in Uveitic Cystoid Macular Edema: Using En Face Optical Coherence Tomography to...

Area of Science:

• Ophthalmology
• Retinal Imaging
• Inflammatory Eye Disease

Background:

• Uveitis-associated cystoid macular edema (CME) can impair visual acuity.
• Predicting visual outcomes in these patients is crucial for management.
• Optical coherence tomography (OCT) is a key imaging modality in assessing macular health.

Purpose of the Study:

• To determine if preserved retinal tissue on baseline en face OCT correlates with visual acuity post-treatment in uveitis-associated CME.
• To compare the predictive value of preserved retinal tissue versus macular thickness/volume for visual outcomes.

Main Methods:

• Retrospective cohort study of 25 eyes with uveitis and CME.
• Analysis of baseline en face OCT to quantify preserved retinal tissue.
• Correlation of OCT findings with visual acuity before and after CME resolution.

Main Results:

• Preserved retinal tissue on baseline OCT strongly correlated with visual acuity at baseline (r=0.61, p=0.0014) and post-treatment (r=0.73, p<0.0001).
• Macular thickness and volume showed only weak correlations with post-treatment acuity.
• The proportion of preserved retinal tissue was a significant predictor of visual recovery.

Conclusions:

• Preserved retinal tissue on baseline OCT is a robust predictor of visual acuity following treatment for uveitis-associated CME.
• This imaging metric offers superior prognostic value compared to macular thickness or volume.
• En face OCT analysis of retinal tissue preservation aids in predicting visual recovery in CME patients.