Morphology of Peeled Internal Limiting Membrane in Macular Hole Surgery.

J Ophthalmol

Ophthalmology University Clinic, Faculdade de Medicina Lisboa, Universidade de Lisboa, 1649-028 Lisboa, Portugal.

Published: May 2019

AI Article Synopsis

  • The study focused on analyzing the ultrastructure and behavior of the internal limiting membrane (ILM) during macular hole surgery.
  • Seven patients underwent vitrectomy and ILM peeling utilizing the inverted flap technique, with samples examined through light and transmission electron microscopy.
  • Findings indicated that the ILM shows signs of proliferative activity, resulting in structures that help in the adherence of ILM flaps, which may aid in closing macular holes post-surgery.

Article Abstract

Purpose: The aim of this work was to describe the ultrastructure and behavior of peeled internal limiting membrane (ILM) in macular hole (MH) surgery.

Methods: Seven patients with MH were included, and vitrectomy with ILM peeling was performed in all patients. The ILM inverted flap technique was used. Two other flaps of ILM of the same patient were collected and studied using light and transmission electron microscopy (TEM). ILM cell type, distribution, and morphology were analyzed, and the proliferation or fusion potential of the ILM interface was evaluated.

Results: ILM vitreous sides in apposition showed signs of proliferative fibrotic activity, producing a basal membrane that merges ILM sides.

Conclusions: Epiretinal cells in ILM show proliferative capacity, with formation of microfibrils between adjacent sides of the ILM, which may explain adherence of ILM flaps to the hole border, contributing to closure of the hole in MH surgery. This trail is registered with NCT03799575.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6525870PMC
http://dx.doi.org/10.1155/2019/1345683DOI Listing

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