Related Experiment Video
Updated: Jul 30, 2026
Visualization of Vascular and Parenchymal Regeneration after 70% Partial Hepatectomy in Normal Mice
Published on: September 13, 2016
The incidence of unexplained visual loss following removal of silicone oil
R Moya1,2, A Chandra1, P J Banerjee1
1Moorfields Eye Hospital NHS Foundation Trust, London, UK.
Purpose:
To assess the incidence and clinical features of unexpected visual loss after removal of silicone oil (ROSO).
Patients And Methods:
A retrospective cross-sectional observational study of 421 consecutive eyes, which underwent silicone oil removal at one institution over a 2-year period.
Results:
Fourteen (3.3%) patients, (12 male, mean age of 53.1 years) suffered unexplained visual loss. In these eyes, the mean duration of silicone oil fill was 141 days (range 76-218). The mean loss of visual acuity was 3.7 (range 2-6) Snellen lines (SL) at 1 month, 3.5 (2-6) SL at 3 months and 2.91 (0-6) SL at 6 months. The change from preoperative visual acuity was statistically significant at all visits (P=0.02). Subgroup analysis of 20 fovea-sparing giant retinal tear (GRT) detachments, observed 10 (50%) cases of visual loss after ROSO. Electrodiagnostic testing suggested predominantly macular dysfunction, with optic nerve involvement in one case. Five of the 14 cases had variable recovery of vision.
Conclusion:
There is a 3.3% overall incidence of visual loss following ROSO with a high rate (50%) observed in maculae on GRT detachments. Although recovery of visual acuity is seen in a minority of cases, visual loss after ROSO remains a serious and unexplained concern for vitreoretinal surgeons.
