Modified vitreous surgery for subretinal neovascularization and hemorrhage.
OBJECTIVE
To modify vitreous surgery for subretinal neovascularization (SRNV) and to determine the effects of this operation.


METHODS
Six patients with SRNV were performed with this operation. The methods of examination before and after operation included: testing the best-corrected visual acuity before operation and 1, 3 or 6 months after operation; 30 degrees and macular 10 degrees Humphrey visual field examination; FFA examination preoperatively and 1, 3 or 6 months postoperatively. Modified surgery procedure is: a preventive buckling; pars plana vitrectomy; peeling the vitreous cortical; no intraocular diathermy; small retinotomy; subretinal surgery; air-fluid exchange.


RESULTS
SRNV was taken off in 4 cases. Subretinal hemorrhage was washed in 2 cases. After 4 to 7 months follow-up, the visual acuity was improved in 4 cases, unchanged in 2 cases. The visual field was improved in 4 cases, unchanged in 1 case, decraesed in 1 case. The complications included macular hole due to surgery in 1 case and subretinal hemorrage in 1 case.


CONCLUSIONS
The surgery criteria were: 1) massive subretinal hemorrhage; 2) some patients of SRNV included: FFA evidence they showed the membrane is beneath fovea, the best V. A is 20/100 or lower, and can't be treated by laser and the patient consent. This modified subretinal operation is safe, and effective for massive hemorrhage and some SRNVS.
Lu
L
L
Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou, China.
Wu
L
L
Gao
R
R
D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008268:Macular Degeneration / Q000150:complications; D008297:Male; D008875:Middle Aged; D012166:Retinal Hemorrhage / Q000601:surgery*; D015861:Retinal Neovascularization / Q000601:surgery*; D014792:Visual Acuity; D014821:Vitrectomy / Q000379:methods*