TITLE:
Evaluation of Nasal and Temporal Anterior Chamber Angle with Four Different Techniques
AUTHORS:
Fredrik P. Källmark, Mezghan Sakhi
KEYWORDS:
Anterior Chamber Angle (ACA); Gonioscopy; Van Herick Technique; Sirius Scheimpflug Camera; AS-OCT; Angle Closure Glaucoma
JOURNAL NAME:
International Journal of Clinical Medicine,
Vol.4 No.12,
December
25,
2013
ABSTRACT: Background: Anterior chamber angle (ACA) can be measured by many different techniques. In
order for a technique to be a part of the routine eye examination, it has to be
quick and easy in
good agreement with gonioscopy both nasally and temporally. Aim: To investigate variation in ACA
measurement between gonioscopy, van Herick technique, anterior segment optical
coherence tomography (AS-OCT) and Sirius Scheimpflug-Camera both nasally and
temporally. Method: The ACA of 50 eyes of 25 healthy subjects was
measured with gonioscopy, van Herick technique, AS-OCT and Sirius
Scheimpflug-Camera. The angle was measured both nasally and temporally. Results: No statistically significant
difference could be found between gonioscopy, van Herick technique and AS-OCT
either nasally or temporally. The Sirius Scheimpflug-Camera on the other hand
showed statistically significant difference to gonioscopy (p Conclusion: This
study showed good agreement between three of the four techniques. ACA
measurements obtained by the Sirius Scheimpflug-Camera should therefore not be
considered interchangeable with those obtained by the remaining three methods.