Optical Coherence Tomography Findings of Underlying Choroidal Neovascularization in Punctate Inner Choroidopathy

Area of Science:

• Ophthalmology
• Medical Imaging
• Retinal Diseases

Background:

• Punctate inner choroidopathy (PIC) is an inflammatory condition affecting the inner choroid.
• Choroidal neovascularization (CNV) can be a complication of PIC, potentially leading to vision loss.
• Distinguishing PIC with and without CNV is crucial for appropriate management.

Purpose of the Study:

• To investigate optical coherence tomography (OCT) findings suggestive of choroidal neovascularization (CNV) in punctate inner choroidopathy (PIC) lesions.
• To identify OCT features that differentiate PIC with CNV (CNV+) from PIC without CNV (CNV-).

Main Methods:

• Retrospective analysis of multi-center clinical data from patients with PIC.
• Quantitative OCT measurements (lesion height, width, volume) and qualitative features (EZ/BM disruption, retinal fuzziness, back-shadowing) were compared between CNV+ and CNV- groups.
• Statistical analysis included Mann-Whitney U-test and Fischer's exact test.

Main Results:

• Of 35 eyes analyzed, 17 PIC lesions showed underlying CNV.
• CNV+ lesions were significantly larger in height, width, and volume compared to CNV- lesions (p < 0.001).
• Distinctive OCT features in CNV+ lesions included disruption of the ellipsoid zone (EZ) and Bruch's membrane (BM), outer retinal fuzziness, and hypo-reflective back-shadowing (p < 0.001).

Conclusions:

• Quantitative and qualitative OCT analysis can effectively predict the presence of underlying CNV in eyes with PIC.
• Specific OCT findings are valuable indicators for identifying CNV in PIC.
• OCT imaging plays a critical role in the diagnostic and prognostic assessment of PIC.