[Accommodative function in eyes exposed to diisopropyl fluorophosphate].
Using a computer-assisted infrared optometer we studied the long-term accommodative behavior in a 31-year-old man whose eyes had been accidentally exposed to diisopropyl fluorophosphate vapor. The initial examination revealed a delay of accommodative relaxation in both quasi-static and dynamic measurements, which recovered within one month, and a characteristic behavior in dark focus of accommodation, that is, a repetition of prominent myopic shift followed by rapid relaxation. This abnormal dark focus of accommodation appeared more marked after the subject was forced to fixate on a near target at a distance of three diopters. These abnormalities in dark focus of accommodation were fairly reduced three months later, but myopic shift was detected even 13 months later. The findings suggest a close association between myopic shift in the dark focus of accommodation and parasympathetic excitation.
NTT Osaka Central Health Administration Center, Japan.
Y
Y
Nakamura
S
S
Kinoshita
D000062:Accidents, Occupational; D000065:Accommodation, Ocular / Q000187:drug effects*; D000328:Adult; D003623:Dark Adaptation / Q000187:drug effects; D006801:Humans; D007531:Isoflurophate / Q000009:adverse effects*; D008297:Male; D016273:Occupational Exposure; D009907:Optometry; D010275:Parasympathetic Nervous System / Q000187:drug effects
D007531:Isoflurophate