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Upper hemiretinal occult retinopathy
Author(s) -
KRASTEL H,
BEUTELSPACHER S,
ROSER O,
UDODOV E,
SCHLICHTENBREDE F,
JONAS J
Publication year - 2013
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2013.t030.x
Subject(s) - blind spot , ophthalmology , fundus (uterus) , medicine , ophthalmoscopy , retinopathy , visual field , occult , retinal , central scotoma , optometry , optics , pathology , physics , alternative medicine , diabetes mellitus , endocrinology
Purpose To emphasize the significance of photopsias and positive scotomas as subjective indicators of occult retinopathy. Methods The patient’s depiction of his photopsias led to a diagnostic work‐up by white and red static and kinetic perimetry, OCT, and visual electrophysiology. Results Within the OD lower visual field our patient encountered a rapid loss of color vision. In dark environs, coloured photopsias showed up in this region, in bright environs, a positive black scotoma developped over time. Kinetic perimetry revealed a relative lower hemifield scotoma by white and an absolute one by red targets. On static perimetry, a distinct lower hemifield scotoma improved for white but persisted for red stimuli during 3 years of follow up. Retinal origin of the scotoma was proven by mf ERG. Serology for anti‐retinal antibodies remained negative. Difficult to detect by ophthalmoscopy, an affection of the OS / RPE layer in the corresponding fundus area was proven by SD OCT. Conclusion Coloured photopsias in dark, a black positive scotoma in bright envorons are salient symptoms of this upper hemifield occult retinopathy. OCT, visual fields and electrodiagnostic findings point towards a variant of AZOOR (acute zonal occult outer retinopathy).