Artikel
Retinal thickness after uncomplicated phacoemulsification
Suche in Medline nach
Autoren
-
R. F. Degenring
- Department of Ophthalmology, Faculty for Clinical Medicine Mannheim, University of Heidelberg
-
S. Vey
- Department of Ophthalmology, Faculty for Clinical Medicine Mannheim, University of Heidelberg
-
B. Kamppeter
- Department of Ophthalmology, Faculty for Clinical Medicine Mannheim, University of Heidelberg
-
W. M. Budde
- Department of Ophthalmology, Faculty for Clinical Medicine Mannheim, University of Heidelberg
-
G. Sauder
- Department of Ophthalmology, Faculty for Clinical Medicine Mannheim, University of Heidelberg
-
J. B. Jonas
- Department of Ophthalmology, Faculty for Clinical Medicine Mannheim, University of Heidelberg
| Veröffentlicht: | 22. September 2004 |
|---|
Gliederung
Text
Objective
To evaluate the effect of uncomplicated standard small-incisional cataract surgery on minimal foveal thickness and on the development of cystoid macular edema.
Methods
In a prospective clinical observational study 103 consecutive eyes (103 patients) were assessed preoperatively, one day, one week and four weeks postoperatively clinically and by Optical Coherence Tomography. Eyes showing edematous macular disease due to diabetes, exudative age-related macular degeneration or other reasons were not included in the study. All eyes underwent uncomplicated small incisional phacoemusification and endocapsular implantation of an posterior chamber lens under topical anesthesia. The study population included 23 diabetic subjects (22.3%) without signs of macular disease. Mean patient age was 72.9 ± 8.8 years. Mean preoperative visual acuity was 0.41 ± 0.16. Mean time of surgery was 11.5 ± 6.6 minutes. Mean minimal foveal thickness was 186 ± 31 μm.
Results
Postoperatively, visual acuity increased to 0.49 ± 0.23 after 1 day (p=0.001); to 0.75 ± 0.21 after 1 week (p<0,001); and to 0.80 ± 0.23 after 4 weeks (p<0.001). Mean minimal foveal thickness increased to 188 ± 34 μm (p=0.183) after 1 day; to 190 ± 40 μm (p=0.061) after 1 week; and to 204 ± 70 μm after 4 weeks (p=0,002). Four weeks postoperatively, in 6 eyes cystoid macular edema was diagnosed by biomicroscopy (5,8%), with 2 eyes belonging to diabetic subjects. The rate of "clinical" CME was 8.7% for diabetics, and 5.0% for non-diabetics. For the total population, there was no significant difference in mean minimal foveal thickness in patients with or without diabetes. After exclusion of patients, who developed "clinical" CME, there was a trend to greater retinal thickness after 4 weeks for diabetics (187 ± 27 μm vs. 203 ± 55 μm for non-diabteics vs. diabetics; p=0.067).
Conclusions
After uncomplicated phacoemulsification, significant subclinical foveal thickening may occur. Diabetic subjects developed cystoid macular edema, as diagnosed by biomicroscopy, more often than non-diabetics. After exclusion of patients showing clinicically detectable CME, there was a trend to a greater increase in retinal thickness for diabetics than for non-diabetics after four weeks.
