[Scotopic threshold response in noninsulin-dependent diabetes mellitus patients with good HbA1c level and ophthalmoscopically intact fundus].
OBJECTIVE
To evaluate behavior of the scotopic threshold response(STR) and the oscillatory potentials(OPs) of the electroretinogram in noninsulin-dependent diabetes mellitus(NIDDM) patients without retinal abnormalities.


METHODS
The STR and the OP 1-3 were recorded from 15 eyes of 15 NIDDM patients aged from 45 to 63 years old with good HbA1c level and ophthalmoscopically intact fundus. As a control group, 8 eyes of 8 age-matched normal subjects were used. The amplitude and the implicit time of the STR as well as the amplitudes and the peak latencies of OP 1-3 were measured.


RESULTS
The mean amplitude and the mean implicit time of the STR in the NIDDM group did not differ significantly from those in the control group. The mean amplitudes and the mean peak latencies of the OP 1-3 also showed no significant differences between the NIDDM and control groups.


CONCLUSIONS
The STR in NIDDM patients remains normal with good HbA1c level and ophthalmoscopically intact fundus.
Kaneko
M
M
Department of Ophthalmology, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka 020-8505, Japan.
D003924:Diabetes Mellitus, Type 2 / Q000097:blood / Q000503:physiopathology*; D004056:Differential Threshold; D005260:Female; D005654:Fundus Oculi; D006442:Glycated Hemoglobin / Q000032:analysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D012607:Scotoma / Q000503:physiopathology*
D006442:Glycated Hemoglobin