The Observation About The Binocular Visual Function Of The Patients With The Monocular AcrySofReSTOR Multifocal Intraoctular Lens

Background and ObjectiveTo evaluate the clinical applications of monocular AcrySof ReSTOR multifocal intraocular lens for the patients with cataract, and to compare the patient's binocular visual function after phacoemulsification implanted with the monocular AcrySof ReSTOR IOL and binocular AcrySof Natural IOL.Materials and methods40 patients (80 eyes) were enrolled in this clinical trial, who had a phacoemulsification and.were implanted with IOL from October 2008 to November 2009. And 20 patients(40 eyes) were chosen artificially as control group who were implanted with the binocular AcrySof Natural IOL after cataract extraction, and 20 patients (40 eyes) were chosen as test group who recesived both AcrySof ReSTOR multifocal IOL and AcrySof Natural IOL. All patients were non-synchronization operation, they were followed up for 3-5 months after operation. UCDVA, UCNVA, BCDVA, BCNVA, stereopsis acuity and contrast sensitivity with and without glare were observed respectively after the operation. Unwanted visual symptoms and satisfaction of patient were asked at 3 months by the means of questionnaire. Results1 week and 3 month after operation, there was no significant difference between the two groups on UCDVA, BCDVA, BCNVA(χ2=2.975,1.554,1.779,2.256,1.954, 1.441;P>0.05). There was significant difference in UCNVA, among the two groups the test group was better in UCNVA (χ2=15.667,16.035; P<0.01). At 3 months postoperatively, there was no significant difference between the control group and the test group on far stereopsis acuity with UCDVA, near stereopsis acuity with UCNVA, BCNVA (χ2=2.222,2.465,2.378;P>0.05). At 1 month postoperatively, There was significant difference in contrast sensitivity between the two groups, among which the control group was better, but at 3 months postoperatively, the two groups was similar in contrast sensitivity. The questionnaire showed that patient's satisfaction ratio in the test group was better.ConclusionsCompared with the control groups, the test groups provides patients with better near visual acuity without reducing far visual acuity, far stereopsis acuity vision contrast sensitivity and at the same time without reducing the patient's independence on wearing glasses.