OBJECTIVE: To compare iridocorneal angle grading systems on the basis of gonioscopy and ultrasound biomicroscopy (UBM). DESIGN: Original cross-sectional observational study. ANIMALS: 22 @entity235 . PROCEDURE: Gonioscopy, goniophotography, and UBM were performed on 38 eyes from @entity235 without clinical evidence of @entity726 in the eyes examined. RESULTS: Predominant gonioscopic grades derived from goniophotographs were considered normal (n = 26) and mild (12). Ultrasound biomicroscopy angle measurements ranged from 16 to 38 degrees (mean +/- SD, 26.2 +/- 4.5 degrees). Ciliary clefts depicted on UBM images were graded as open (n = 4), compact/narrow (23), and closed (11). Significant differences were not found between UBM-derived ciliary cleft grades and goniophotography-derived dysgenesis grades, nor between UBM-derived ciliary cleft grades and subjective gonioscopic grades. CLINICAL IMPLICATIONS: Because gonioscopy allows evaluation of the anterior face of the ciliary cleft, whereas UBM provides cross-sectional information of the iridocorneal filtration angle, UBM may yield more information regarding pathogenesis and prognosis of, and preferred management approaches to, @entity726 . Ultrasound biomicroscopy may also be useful as a predictor of @entity726 or to diagnose early stages of @entity726 .

Comparison of gonioscopy and ultrasound biomicroscopy for evaluating the iridocorneal angle in XXXX .

@entity235 :: ('9615', 'Species') :: ['dogs'] @entity726 :: ('MESH:D005901', 'Disease') :: ['glaucoma']
@entity235 :: (9615,Species) :: ['dogs']
