Visual abnormalities associated with high-energy microwave exposure.
A 44-year-old man was accidentally exposed to high-energy microwave irradiation. After resolution of facial erythema and iritis, he noted a foreign body sensation and blurring of vision. Ophthalmoscopic examination showed bilateral, small hard drusen. Ancillary tests were consistent with abnormal cone function. Electroretinogram testing revealed a marked decrease in the flicker electroretinogram. Results of D15 and Farnsworth Munsel Hue 100 color tests were abnormal. Two years later, the patient's visual acuity was stable at 20/25 in both eyes; however, results of flicker electroretinogram test remain markedly decreased.
Lim
J I
JI
Department of Ophthalmology, Wilmer Ophthalmological Institute, Johns Hopkins Hospital, Baltimore, Maryland.
Fine
S L
SL
Kues
H A
HA
Johnson
M A
MA
D000328:Adult; D003117:Color Vision Defects / Q000209:etiology*; D003623:Dark Adaptation; D004596:Electroretinography; D006801:Humans; D007500:Iritis / Q000209:etiology; D008027:Light; D008297:Male; D008872:Microwaves / Q000009:adverse effects*; D011832:Radiation Injuries / Q000209:etiology*; D017949:Retinal Cone Photoreceptor Cells / Q000528:radiation effects*; D015593:Retinal Drusen / Q000209:etiology*