Primary posterior capsulotomy and posterior optic buttonholing in eyes with phacovitrectomy and gas tamponade

摘要

Vitrectomy with intraocular gas tamponade is an established treatment for idiopathic macular hole and retinal detachment. Because nucleosclerosis is a common complication of vitrectomy with gas tamponade, phacovitrectomy combined with pars plana vitrectomy with phacoemulsiflcation and intraocular lens (IOL) implantation is commonly used to treat various diseases. Phacovitrectomy can reduce the number of surgeries and lessen the financial burden and achieve early visual rehabilitation.However, surgeons should consider some possible problems related to the IOL in phacovitrectomy, such as posterior capsular opacity (PCO), posterior synechiae formation, IOL subluxation, and pupillary capture of the IOL optic. Eyes with phacovitrectomy with gas tamponade are more likely to have these complications.6'8 Moreover, gas leaking into the anterior chamber or an anterior shift of the IOL can also occur during and after surgery. This can hinder fundus examination and decrease the advantages of the combined operation.