[Comparison of results of chamber angle examination by ultrasound biomicroscopy and gonioscopy].
OBJECTIVE
To compare the consistency of the chamber angles examined by ultrasound biomicroscope (UBM) and gonioscope and provide gonioscopic examination with new methods and technology.


METHODS
10 patients (20 eyes) were selected for the research. The same eyes were examined by UBM and gonioscope in turns. The results from the two methods were compared and the data were analyzed with Spearman correlation test.


RESULTS
The results of two methods of chamber angle examination were well consistent when the angle was wide, but the consistency was not good when it was narrow. The angle examined by a gonioscope was wider than that by UBM. When the iris root insertion was evaluated in a narrow angle, the consistency was also not good, and when the peripheral iris morphology was evaluated, there were almost inconsistent results in one-fourth of the patients.


CONCLUSIONS
The results of chamber angle examined by a gonioscope show a little wider than its natural status. Especially, it is difficult to distinguish the functional closure from the adhesive closure. Under the influence of light, the determination of iris root insertion by a gonioscope has a sense of conjecture. When peripheral iris morphology is evaluated, the influence of irregular iris might result in a wrong conclusion. Therefore, the technique of gonioscopic examination should be improved.
Wang
N
N
Zhongshan Ophthalmic Center, Sun Yat-sun University of Medical Sciences, Guangzhou 510060.
Ye
T
T
Lai
M
M
Ou
Y
Y
Zeng
M
M
Yang
C
C
D000328:Adult; D000368:Aged; D000867:Anterior Chamber / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D005260:Female; D006068:Gonioscopy / Q000379:methods*; D006801:Humans; D008297:Male; D033401:Microscopy, Acoustic / Q000379:methods*; D008875:Middle Aged