Plateau Iris Configuration and Dark-Light Changes in Anterior Segment Optical Coherence Tomography

Sekar Ulaganathan; Shonraj Ballae Ganeshrao; Mani Baskaran; Sangeetha Srinivasan; Ballekudru Shantha; Lingam Vijaya

doi:10.3928/15428877-20100216-01

Plateau Iris Configuration and Dark-Light Changes in Anterior Segment Optical Coherence Tomography

Ophthalmic Surg Lasers Imaging. 2010 Mar 9:1-4. doi: 10.3928/15428877-20100216-01. Online ahead of print.

Authors

Sekar Ulaganathan, Shonraj Ballae Ganeshrao, Mani Baskaran, Sangeetha Srinivasan, Ballekudru Shantha, Lingam Vijaya

PMID: 20337273
DOI: 10.3928/15428877-20100216-01

Abstract

The angle opening distance (AOD) was analyzed using anterior segment optical coherence tomography (ASOCT) in dark-light conditions in 14 convex iris configuration (CIC) and 12 plateau iris configuration (PIC) patients. AOD500 measured in dark and bright conditions in nasal quadrants were 0.156 +/- 0.072 mum; 0.186 +/- 0.084 mum for CIC (P = .025) and 0.177 +/- 0.121 mum; 0.186 +/- 0.116 mum for PIC (P = .38). AOD750 in dark and bright conditions in nasal quadrants were 0.235 +/- 0.082 mum; 0.280 +/- 0.097 mum for CIC (P = .000) and 0.294 +/- 0.181 mum; 0.306 +/- 0.172 mum for PIC. PIC showed no significant difference in the dynamic changes, whereas the nasal quadrant in CIC showed significant changes. The AOD parameters from ASOCT can be used to analyze the dark-light changes of the anterior chamber angle to differentiate between CIC and PICs.