To evaluate the impact of the vitreoretinal interface
architecture, in specific the angle between the posterior vitreous
cortex and the internal limiting membrane, on vitreomacular traction
(VMT) resolution in eyes treated with intravitreally injected ocriplasmin
Retrospective, multicenter cohort study and exploratory data analysis. Spectral domain optical coherence tomography assessments were performed before scheduled ocriplasmin
injections. General (age and sex) as well as ocular variables (lens status, presence of epiretinal membrane formations, horizontal diameter of VMT, central retinal thickness, and in particular various prespecified angles between the posterior vitreous
cortex and internal limiting membrane) were analyzed to evaluate their impact on successful VMT resolution.
Fifty-nine eyes of 59 patients were included. Univariate analysis of age (odds ratio [OR]: 0.881; 95% CI: [0.812–0.955]; P
= 0.0022) and lens status (OR: 11.03; 95% CI: [2.23–54.57]; P
= 0.0033) had a significant impact on successful VMT resolution, whereas sex (OR: 0.668; 95% CI: [0.126–2.065]; P
= 0.4906), epiretinal membrane formation (OR: 0.581; 95% CI: [0.168–2.006]; P
= 0.3903), horizontal diameter of VMT (OR: 0.99930; 95% CI: [0.99825–1.00035]; P
= 0.1886), and central retinal thickness (OR: 0.9985; 95% CI: [0.9934–1.00436]; P
= 0.56) failed. The angle at 500 μ
m apart from the fovea centralis, irrespective if measured nasally (OR: 1.135; 95% CI: [1.013–1.272]; P
= 0.0289) or temporally (OR: 1.099; 95% CI: [1.001–1.208]; P
= 0.0485), showed a significant correlation with VMT resolution.
The angle between the posterior vitreous
cortex and the internal limiting membrane 500 μ
m apart from the fovea centralis correlates with VMT resolution and may be a clinically useful marker for selection of patients to be treated with ocriplasmin
. This observation needs to be proven in a prospective confirmatory investigation.