title: Heterotopia of the macula (ectopic macula): an unusual presentation.
abstract: Heterotopia of the macula is a condition in which the macula is displaced markedly from its normal position. Only 40 cases have been reported in the literature. Of those cases more than 90% have occurred in patients presenting with an apparent exotropia (macula displaced temporally), a large positive angle lambda, and an actual esotropia. We report a unique case of heterotopia of the macula in which the patient presented with an apparent esotropia and a large negative angle lambda. This is the only reported case of ectopic macula in which the macula has been dragged nasally toward the disc in association with a suspected retinopathy of prematurity. There have been three other cases of heterotopia of the macula in which the macula was displaced nasally, but these were associated with chorioretinitis.
mesh_terms: D000550:Amblyopia / Q000209:etiology / Q000628:therapy; D002675:Child, Preschool; D002828:Choristoma / Q000150:complications / Q000175:diagnosis / Q000473:pathology* / Q000503:physiopathology; D005134:Eye Neoplasms / Q000150:complications / Q000175:diagnosis / Q000473:pathology* / Q000503:physiopathology; D005139:Eyeglasses; D005260:Female; D006801:Humans; D008266:Macula Lutea; D009887:Ophthalmoscopy; D009898:Optic Disk; D013285:Strabismus / Q000209:etiology; D014787:Vision Tests; D014792:Visual Acuity