Vitreomacular Interface Abnormalities and Glaucoma in an Elderly Population (The MONTRACHET Study).

PURPOSE

To investigate the prevalence of vitreomacular interface abnormalities (VMIAs) in a French elderly glaucomatous population.

METHODS

Using a population-based study, the MONTRACHET (Maculopathy Optic Nerve nuTRition neurovAsCular and HEarT diseases) study conducted in Dijon from 2009 to 2013 in individuals older than 75 years, the prevalence of VMIAs was estimated on glaucoma patients.

RESULTS

A total of 1130 participants (2225 eyes) were included in the study. The mean age of participants was 82.3 ± 3.8 years, and 62.74% were women. Regarding the frequency of all VMIAs, there was no statistical difference between glaucoma patients and nonglaucoma participants (51.85% vs. 53.92%, respectively, P = 0.372). In univariate analysis, vitreomacular adherences were more frequent in nonglaucoma participants (18.39% vs. 10.78%, P = 0.036). Epiretinal membranes were more frequent in the glaucomatous population (47.06% vs. 38.13%, P = 0.018). The prevalence of macular cysts was comparable in the two groups (7.84% vs. 5.64%, P = 0.262). Macular cysts were more frequent in eyes treated with preservative-free, IOP-lowering eye drops when compared with the eyes of nonglaucomatous participants treated with IOP-lowering eye drops containing a preservative (26.67% vs. 3.37% and 5.76%, respectively, P < 0.001). In multivariate analysis, these results were no longer significant.

CONCLUSIONS

The prevalence of VMIAs was high in this elderly population and similar in both glaucomatous and nonglaucomatous participants. The information provided by macular optical coherence tomography scans should be considered with caution when used for glaucoma management in elderly patients.