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Binocular visual function improvement after pars plana vitrectomy for epiretinal membrane.

Lea Dormegny¹, Maxime Foch¹, Arnaud Messerlin¹

¹Department of Ophthalmology, New Civil Hospital, Strasbourg University Hospital, FMTS, Strasbourg, France.

Acta Ophthalmologica

|April 24, 2023

Summary

Pars plana vitrectomy for epiretinal membrane (ERM) surgery significantly improves both monocular and binocular vision. Patients experienced enhanced visual acuity, contrast sensitivity, and stereopsis within three months post-operation.

Keywords:

binocular visual function contrast sensitivity epiretinal membrane far distance stereopsis near stereopsis pars plana vitrectomy

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Area of Science:

Ophthalmology
Retinal Surgery
Visual Function Assessment

Background:

Epiretinal membrane (ERM) affects vision by distorting the retinal surface.
Pars plana vitrectomy is a surgical procedure to remove the vitreous humor and associated retinal pathologies.
Assessing binocular visual function is crucial for understanding the full impact of ERM surgery.

Purpose of the Study:

To evaluate changes in binocular visual function after pars plana vitrectomy for ERM.
To report on related visual outcomes, including visual acuity and stereopsis.

Main Methods:

Retrospective study of 23 patients who underwent pars plana vitrectomy for ERM.
Pre- and post-operative assessment of best-corrected visual acuity (BCVA), contrast sensitivity, and binocular visual function (fusional amplitudes, stereopsis).
Spectral Domain Optical Coherence Tomography (SD-OCT) used to measure central macular thickness (CMT).

Main Results:

Significant improvements in BCVA and contrast sensitivity were observed at 1 and 3 months post-surgery (p < 0.0001).
Central macular thickness (CMT) significantly decreased post-operatively (p < 0.0001).
Binocular functions, including fusional amplitudes and both near and far stereopsis, significantly improved by 3 months (p < 0.0001).

Conclusions:

Pars plana vitrectomy for ERM effectively improves monocular visual functions.
The surgery also leads to significant enhancements in binocular visual functions, including fusion and stereopsis.
These improvements in visual function are typically achieved within three months of the surgical procedure.