Epiretinal membrane and exodeviation Elaine Wong Lionel Kowal

IM 61 yo M POHx High Myope R -9.50/-0.50 x 110 L -9.25/-0.75 x 70 Increasing intermittent exotropia since 1993 Seen in 2003 Exophoria 20Δ for distance and 30Δ for near Fusion reserve 10Δ for distance and 40Δ for near No fundus abnormality No treatment/ Not keen for XT surgery

IM 61 yo M Current status: 2006 Increase frequency of diplopia Wearing CLs -9 OU VAR 6/8VAL 6/9 Exotropia distance 25Δ, near 40Δ Fusional range distance 16Δ, near 35Δ L macropsia ~ 5-10% L epiretinal membrane

IM 61 yo M Mx options 1. Modify spectacles lenses to compensate for aneisokonia : ineffective 2. Vitrectomy and ERM peel to reduce aneisokonia 3. Strabismus surgery for exodeviation