PREOPERATIVE AND POSTOPERATIVE MACULAR SENSITIVITY ASSESSMENT USING MICROPERIMETRY IN EYES UNDERGOING SILICONE OIL
Manish Nagpal1, Jayesh Khandelwal, Ahmed Eltayib
1Department of Vitreo-Retina, Retina Foundation, Ahmedabad, Gujrat, India.
Retina (Philadelphia, Pa.)
|August 13, 2019
Summary
Silicone oil removal (SOR) significantly improved macular retinal sensitivity in patients with macula-off rhegmatogenous retinal detachments. Microperimetry (MP3) detected these functional gains, even when visual acuity remained stable.
Area of Science:
- Ophthalmology
- Retinal Surgery
- Visual Function Testing
Background:
- Macula-off rhegmatogenous retinal detachment (RRD) poses a significant threat to visual function.
- Silicone oil is often used as an intraocular tamponade in complex retinal detachments.
- Evaluating functional recovery after silicone oil removal (SOR) is crucial for patient outcomes.
Purpose of the Study:
- To assess functional changes in the macula post-silicone oil removal (SOR).
- To evaluate the efficacy of microperimetry (MP3) in detecting these changes.
- To correlate functional changes with visual acuity in patients with macula-off RRD.
Main Methods:
- Prospective interventional study with 20 patients.
- Comprehensive ophthalmic examination including Snellen best-corrected visual acuity (BCVA).
- Microperimetry (MP3) used to measure macular retinal sensitivity before and after SOR.
Main Results:
- 100% of patients showed increased retinal sensitivity after SOR (mean 97.44 dB).
- Median retinal sensitivity in the central 6° macula increased significantly (P < 0.0001).
- BCVA remained unchanged in 90% of patients, with minimal improvement in 10% (P = 0.1628).
Conclusions:
- Microperimetry (MP3) is a sensitive tool for detecting improved retinal sensitivity post-SOR.
- MP3 identified functional gains not reflected in BCVA.
- MP3 serves as a valuable qualitative indicator of visual function after SOR.
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