Assessment and comparison of anterior chamber dimensions using various imaging techniques.
OBJECTIVE
To assess and compare the horizontal dimensions of the anterior chamber by different anterior segment imaging techniques.


METHODS
Eighty eyes of 40 patients without any ocular disease or previous ocular surgery were recruited and three consecutive measurements of internal anterior chamber diameter and white-to-white distance (WTW) parameters were determined.


RESULTS
Mean internal anterior chamber diameter was 11.80 +/- 0.39, 11.56 +/- 0.47, and 11.61 +/- 0.58 mm with Visante-OCT, SL-OCT, and Pentacam, respectively. Mean WTW distance was 11.87 +/- 0.35 and 11.65 +/- 0.32 mm by IOLMaster and OrbscanIIz, respectively. There was no significant difference between Visante-OCT and Pentacam, IOLMaster, and OrbscanIIz (P = .125, .918, and .314). However, detection of mean internal anterior chamber diameter was significantly greater by Visante-OCT than SL-OCT (P = .026). All devices displayed a high intrasession repeatability (repeated measured ANOVA, P > .05).


CONCLUSIONS
Internal anterior chamber diameter measurements using Visante-OCT, SL-OCT, and Pentacam, and WTW measurements using IOLMaster and OrbscanIIz were easy to handle and demonstrated good repeatability. Although similar results of horizontal anterior chamber diameter were determined by Visante-OCT, Pentacam, IOLMaster, and OrbscanIIz, the inter-device differences should be considered during clinical practice.
Yeditepe University Eye Hospital, Sakir Kesebir Sokak No:28 Balmumcu, Besiktas, 34349 Istanbul, Turkey.
Umut Asli
UA
Dinc
Banu
B
Oncel
Ebru
E
Gorgun
Melda Nursal
MN
Yenerel
Levent
L
Alimgil
D000328:Adult; D000867:Anterior Chamber / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D007368:Interferometry / Q000379:methods*; D008297:Male; D012016:Reference Values; D015203:Reproducibility of Results; D041623:Tomography, Optical Coherence / Q000379:methods*; D055815:Young Adult