Abstract
Purpose: :
Pit-macular syndrome (PMS) consists of retinoschisis between optic pit and macula, outer macular hole and subfoveal detachment. We report 3 cases with PMS which developed macular hole after vitrectomy.
Methods: :
We treated 11 eyes of PMS with vitrectomy and gas tamponade from September 1997 to June 2007. Internal limiting membrane(ILM) peeling was performed in 7 eyes. After surgery, 3 eyes (30%) developed full thickness macular hole. Two of the 3 eyes underwent ILM peeing.
Results: :
Two eyes with ILM peeling obtained closure of macular hole after one or twice fluid-gas (30%SF6) exchange. In one eye without ILM peeling, the hole did not close after fluid-gas exchange. We performed second vitrectomy with ILM peeling and gas tamponade and macular hole was finally closed. These 3 eyes obtained foveal retinal attachment and visual improvement with more than 2 lines.
Conclusions: :
PMS usually has an outer macular hole with overlying thin retina. Thus macular hole may develop after vitrectomy. Macular hole may close by fluid-gas exchange in eyes with ILM peeling but second vitrectomy with ILM peeling is necessary in eyes without ILM peeling at first vitrectomy.
Keywords: retina • imaging/image analysis: clinical • vitreoretinal surgery