We prospectively studies 118 eyes that could have taken fluorescein angiography(FA) about six weeks after cataract surgery with or without intraocular lens implantation to evaluate the incidence of angigraphic cytoid macular edema(ACME) and
clinical
cystoid macular edema(CCME) and the visual prognosis in eyes with CME. All eyes were divided into three groups according to surgical procedures used: 1) extracapsular cataract extraction(ECCE) with posterior chamber lens(PCL) implantation[PCL
group]: 2)
ECCE only [ECCE group]: 3) ACL implantation[ACL group]. Of 118 eyes, 62 eyes(52.5%) could take follow-up FA about six months after surgery.
Six weeks and six months after surgery, ACME was documented in 27.1%, 7.9% respectively in all corresponding eyes and CCME in 5.1%, 3.2% respectively. By surgical procedures, ACL group, ECCE group and PCL group were in order of high CME
incidence.
Vitreous loss occured during the procedure raised the incidence of CME significantly.
Eyes with CME exhibited minimal leakage of grade 2+ or less in more than 80%. Visual acuity was less than o.5 in 37.5% of eyes with CME six weeks after surgery, and improved in 64% of such eyes at six month fololow-up time. Main cause preventing
from
getting more than 0.5 of VA in such eyes was CCME and macular degeneration and posterior capsular opacity also contributed to poor vision.
We concluded that CME following cataract surgery is benign in nature course and its incidence can be significantly decreased in the absence of inadvertent posterior capsular rupture or vitreous loss during the catarct surgery.
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