Abstract
We identified a group of 93 patients (102 eyes) with involutional macular thinning which is a condition that predisposes the affected eyes to developing idiopathic macular holes. The fovea in these patients shows specific architectural changes that can be identified on ophthalmoscopy. On follow-up (mean, 50 months), 26 eyes (27%) developed a macular hole compared to 0% in normal fellow eyes (P < 0.00001). Patients with pigment epithelial window defects on fluorescein angiography (12 of 15 eyes or 80%), or with no posterior vitreous detachment (15 of 34 eyes or 44%) had the highest risk of developing macular holes. There were seven eyes with involutional macular thinning, pigment epithelial window defects on fluorescein angiography and no posterior vitreous detachment; six (86%) developed a macular hole. Macular degeneration, estrogen supplements, cystoid changes (with normal fluorescein angiography), and poor visual acuity did not increase risk. We present a theory for the pathogenesis of idiopathic macular holes.
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