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Clinical Trial Summary

The idiopathic macular hole, age-related disease, is a major cause of vision loss and affects at least two persons in 1000 after 40 years.

This hole causes an acute decline linked to a central scotoma. The only treatment is surgical. The surgery involves removing the posterior hyaloid (vitreous base) to relieve the tensile forces. To be sure the removed is complete and to facilitate the closure of the hole, a peeling of the internal limiting, the outermost layer of the retina, is often suggested. The inner limiting membrane (ILM), transparent and adherent to the retina, is colored with vital dyes to facilitate its removal. After closure of the macular hole, the central scotoma disappears but a diffuse and asymptomatic loss of pericentral sensitivity is often described. This sensitivity decrease could be induced by the dyes used during surgery.

This effect has not been studied clinically for recent dyes (Membrane Blue Dual®, Brilliant Blue®, Acid Violet®) at the concentrations used, but is known in electrophysiology at higher concentrations, at least on the isolated retina models.

It would be interesting to search for a decrease in retinal peri-foveal postoperative sensitivity after surgery of macular holes, performed with the usual dyes. Only microperimetry can observe this decrease in retinal sensitivity. This is a noninvasive technique that explores the macular visual field. It is performed without iris dilatation and allows an automatic exploration ensuring rapid and accurate analysis of retinal sensitivity.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT02894424
Study type Observational
Source Fondation Ophtalmologique Adolphe de Rothschild
Contact Laurence Salomon, MD, PhD
Phone +33 148 036 431
Email lsalomon@for.paris
Status Recruiting
Phase
Start date February 23, 2017
Completion date September 2019

See also
  Status Clinical Trial Phase
Completed NCT02650739 - Optical Coherence Tomography-based Positioning for Macular Hole Surgery N/A