EVOLUTION AND PATTERNS OF CHOROIDAL THICKNESS CHANGES IN RHEGMATOGENOUS RETINAL DETACHMENT

Area of Science:

• Ophthalmology
• Retinal Surgery
• Choroidal Imaging

Background:

• Rhegmatogenous retinal detachment (RD) affects vision by separating the retina from the choroid.
• Pars plana vitrectomy is a common surgical approach for RD repair.
• Understanding choroidal thickness (CT) changes post-surgery is crucial for evaluating outcomes.

Purpose of the Study:

• To assess changes in choroidal thickness (CT) following pars plana vitrectomy for rhegmatogenous retinal detachment (RD).
• To correlate the evolution of CT with the preoperative extent of the RD.

Main Methods:

• Fifty-four patients with RD were categorized into three groups based on foveal involvement: peripheral macula-on, paracentral macula-on, and macula-off RD.
• Choroidal thickness was measured using enhanced depth imaging optical coherence tomography (EDI-OCT) at baseline (for macula-on RD) and at 1 and 3 months postoperatively.
• Measurements were taken across a 5 mm span centered on the fovea.

Main Results:

• Peripheral macula-on RD cases demonstrated a trend of choroidal thickening post-surgery.
• Paracentral macula-on and macula-off RD cases showed a consistent trend of choroidal thinning post-surgery.
• The observed changes in CT varied significantly between the different RD extent groups.

Conclusions:

• The extent of retinal detachment influences choroidal thickness changes after vitrectomy.
• Further research is needed to elucidate the mechanisms linking CT alterations, circulatory changes, vitrectomy, and RD outcomes.