| Abstract |
Purpose:
To compare the macular light sensitivity and fixation stability in patients with and without retinal disease before and after phacoemulsification cataract surgery.
Methods:
In this prospective study 53 patients (26 male, 26 female) who performed preoperative evaluation to cataract surgery, their best corrected visual acuity using logMAR EDTRS UoC chart, macular sensitivity and fixation stability using Microperimeter MAIA (MAIA, CenterVue SpA, Padova, Italy) were evaluated before and after the cataract surgery. 3 groups of patients were formed, the first was without retinal disease (31patients) ,the second with macular retinopathy (13 patients) and the last with peripheral retinopathy (9 patients).
Results:
Best corrected visual acuity (BCVA) was improved in all groups postoperative in 2 weeks and 4 weeks with P value <0.05, and the values were significantly different between the groups preoperatively and postoperatively. The average threshold (AvT) significantly improved in the first and second group after cataract surgery with a significant difference between them. On the contrary, the third group hadn’t any improvement in the AvT, and the values of the average threshold were significantly different postoperatively and not preoperatively. The values of BCVA and AvT had a significant correlation all times in the first and second groups. There no correlation between those them in the third group. The ellipse that includes the 63% (Bcea65) and 95% (Bcea95) of the fixation points didn’t improved in any group after the cataract surgery. Despite the look-alike values of the fixation stability (Bcea65) preoperatively, the values were significantly P<0.05 different postoperatively between the control group and macular retinopathy group. When ROC curves were performed in the three values, BCVA had a significant Area under the curve (AUC), sensitivity and specificity pre and postoperatively. AvT had high sensitivity and specificity for the group of macular disease before and for the two groups after the surgery. Bcea65 had significant AUC with p value <0.05 just for the group with macular disease.
Conclusion:
The average threshold and the fixation stability seem to evaluate with better way the patients with retinal disease who would perform cataract surgery and add more details in the follow up examination postoperatively. With these tow values before the cataract surgery, physicians can predict a macular disease in such those patients.
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Ανάκτηση της φωτεινής ευαισθησίας αντίθεσης και σταθερότητας προσήλωσης μετά από χειρουργείο καταρράκτη σε ασθενείς με και χωρίς αμφιβληστροειδική νόσο
