Macular Diplopia Caused by Epiretinal Membrane

Area of Science:

• Ophthalmology
• Neuroscience
• Vision Science

Background:

• Macular diplopia, or dragged-fovea diplopia syndrome, is a rare binocular condition.
• It stems from foveal displacement due to macular pathology, most commonly epiretinal membrane (ERM).
• ERM causes retinal misregistration, disrupting central fusion while maintaining peripheral correspondence.

Purpose of the Study:

• To highlight the distinct nature of macular diplopia.
• To emphasize the importance of recognizing ERM-induced macular diplopia to prevent misdiagnosis.
• To discuss diagnostic and management strategies.

Main Methods:

• Review of clinical presentations and pathophysiology of macular diplopia.
• Analysis of diagnostic approaches including multimodal imaging and orthoptic evaluation.
• Discussion of treatment options, including conservative and surgical interventions.

Main Results:

• Epiretinal membrane (ERM) is the primary cause of macular diplopia.
• Diplopia occurs due to foveal displacement and central-peripheral fusion conflict, despite normal ocular alignment.
• Surgical correction may not always resolve persistent diplopia due to limited cortical adaptation.

Conclusions:

• Macular diplopia associated with ERM is a significant cause of binocular double vision.
• Accurate diagnosis via imaging and orthoptic assessment is crucial.
• Conservative management with prisms or occlusion is an effective first-line approach.