Affiliation:
1. Ophthalmology, Medicana International Samsun Hospital, Samsun, Turkey
Abstract
Abstract
Purpose The aim of this study was to compare the biometric measurements and different formulas for calculating intraocular lens (IOL) power by using the Lenstar LS900 biometer for
optical low-coherence reflectometry before and after induction of cycloplegia in the adult population.
Materials and Methods In this cross-sectional study, 168 eyes of 168 healthy volunteers aged 40 – 86 years (59.22 ± 11.57) were included. Biometric measurements, including axial
length (AL), anterior chamber depth (ACD), keratometry (K1 and K2), and white-to-white (WTW) were compared using a Lenstar LS900 optical biometer before and after induction of cycloplegia
with 1% cyclopentolate. The IOL power was also compared using six different formulas (Barrett Universal II, Haigis, SRK/T, Hoffer Q, Holladay, and SRK-II) for the AcrySof MA60AC IOL before
and after induction of cycloplegia.
Results There were no statistically significant differences in AL, K1 and K2, or WTW measurements before and after induction of cycloplegia. There was a significant increase only in
ACD from the biometric parameters after the induction of cycloplegia (p < 0.05). Despite this change, there were no significant changes in IOL power calculations using the six different
formulas before and after induction of cycloplegia.
Conclusions This study demonstrated that IOL power measurements using the Lenstar LS900 can be performed after cycloplegia.