Multifocal Electroretinogram in Central Serous Chorioretinopathy

Area of Science:

• Ophthalmology
• Retinal Physiology
• Neuroscience

Background:

• Central serous chorioretinopathy (CSC) is a condition affecting the retina.
• Understanding the functional impact of CSC is crucial for patient management.

Purpose of the Study:

• To assess retinal function topographically in eyes affected by CSC.
• To evaluate the utility of multifocal electroretinogram (mERG) in observing CSC.

Main Methods:

• Multifocal electroretinogram (mERG) was recorded in 5 patients with unilateral CSC.
• Topographical analysis focused on the central visual field (rings #1 + 2).
• Comparison was made between affected CSC eyes and fellow unaffected eyes.

Main Results:

• Significantly reduced mERG amplitudes (P1-N1 and P1-N2) were observed in CSC eyes compared to fellow eyes.
• Significantly increased mERG latencies (N1 and P1) were found in CSC eyes.
• While mERG showed gradual recovery, responses did not normalize even after subretinal fluid resolution.

Conclusions:

• Topographical analysis of mERG provides valuable insights into retinal function in CSC.
• mERG is a useful tool for clinical observation and monitoring of CSC patients.
• Functional deficits may persist in CSC even after apparent structural recovery.