تأثير زمن الأمواج فوق الصوتية الفعال على كثافة خلايا بطانة القرنية عند المرضى غير السكريين

Abstract EN

Objective : to study the variation in corneal endothelial cell density with respect to variations in equivalent ultrasound time during phaco-emulsification in non-diabetic patients.

methods : fifty-one eyes non-diabetic patients (mean age 62.2 years) underwent phacoemulsification performed by residents.

all patients were evaluated before the surgery, two weeks after, and three months after uneventful phacoemulsification.

evaluation included measuring corneal endothelial cell density using specular microscope cem-530.

equivalent ultrasound time during phacoemulsification was recorded.

results : equivalent ultrasound time was statically related to the change of corneal endothelial cell density at two weeks after surgery (p=0.000), and three months postoperatively (p=0.001).

corneal endothelial cell density decreases notably at two weeks postoperative period (13.2%), and at three months postoperatively (24%).

conclusions : a direct correlation between equivalent ultrasound time and endothelial cell loss was observed.