The Biometric Values of Affected and Fellow Eyes in Patients with Acute Attack of Primary Angle Closure

Background: it has been estimated that 67 million peopleworldwide are affected with a primary glaucoma and that one third have primary angle closure glaucoma. we aimed to determine the biometric differences between the eyes of patients with acute attack of primary angle closure and their non involved fellow eyes.methods: twenty eight patients with acute attack of primary angle closure were recruited in this prospective study. three weeks after laser iridotomy and resolution of corneal edema, all patients had a complete ocular examination including slit lamp biomicroscopy,pachymetry, keratometry, and ocular biometry. the followinga-scan parameters were measured: anterior chamberdepth, lens thickness, axial length, lens– axial length factor, relativelens position, and corrected anterior chamber depth.results: there were 22 (78.5%) women and six (21.5%) menwith mean age of 52.82±9.25 years. there were no statistically significant differences in the biometric figures between the affected and fellow eyes [anterior chamber depth (p=0.4), lens thickness (p=0.4), axial length (p=0.7), lens-axial length factor(p=0.6), relative lens position (p=0.7), and corrected anteriorchamber depth (p=0.8)]. the mean ± standard deviation ofcentral corneal thickness in the affected and fellow eyes were560.12±41.93 and 557.727±18.53, respectively (p=0.806).there was no statistically significant difference between theboth eyes in the mean keratometric diopters in the affected and in the fellow eyes (45.05±2.02 v 44.91±1.73; p=0.78).conclusion: the present study did not reveal any statistically significant differences regarding the ocular biometricparameters between the affected and fellow eyes in patientswith acute primary angle closure. the biometric paramete rswere similar between male and female patients as well.