Myopic traction maculopathy in fovea-involved myopic chorioretinal atrophy

Abstract

Objectives: To assess the specific features of myopic traction maculopathy (MTM) in the context of myopic macular atrophy (MA). The evolution, surgical considerations, optimal surgical procedures, and results were studied.

Methods: Retrospective, consecutive cases collection was performed for highly myopic eyes with MA (category 4, the classification system of META-analysis for Pathologic Myopia). Eighty-seven eyes of 75 patients with MA were included. The characteristics and evolution of the MTM were analyzed. Surgical indications and outcomes were evaluated and specific surgical features and techniques were assessed.

Results: Approximately half (50.6%) of the cases with MA presented with various stages of MTM. The majority were maculoschisis with a lamellar macular hole (LMH) and were characterized by an O-shaped LMH, high outer retinal schisis, thin floor, and a high percentage of thickened epiretinal tissue. Half (50%) of them either displayed maculoschisis progression (61%) or developed into macular hole with retinal detachment (39%), and all received surgical intervention. The inverted ILM flap technique, with or without fovea-sparing ILM peeling, was the most frequently used surgical technique (78%). Complete traction relief was achieved in most cases (94%).

Conclusion: MA contributes to the specific configuration and evolution of MTM, and characteristic maculoschisis with LMH is a frequent presentation in MA patients. MHRD development and structural progression were two major reasons for surgical intervention. Vitrectomy with inverted ILM flap effectively stabilized the macular structure with few recurrences.