2M.D. Sivas Numune Training and Research Hospital, Eye Clinic, Sivas/TURKEY Purpose: The aim of this study was to investigate the effects of neodymium yttrium aluminum garnet (Nd:YAG) laser capsulotomy on axial length (AL), refraction, keratometry (K), white to white distance (WTW), central corneal thickness (CCT), anterior chamber depth (ACD) and pupil diameter.
Materials and Methods: We included pseudophakic patients with posterior capsule opacification complaining of decreased visual acuity, glare, or decreased contrast sensitivity who consecutively came to our clinic. All cases underwent Nd:YAG laser (Ellex Super Q, Adelaide, Australia) capsulotomy. The measurements were performed before and one week after the Nd:YAG laser capsulotomy using a Scheimpflug imaging system (Nidek Optical biometer AL-Scan, Gamagori, Japan).
Results: Thirty one eyes of 22 pseudophakic patients with clinically significant posterior capsule opacification were enrolled in the study. The mean pupil diameter was 5.47±1.18 mm before and 4.55±1.35 mm after Nd:YAG laser capsulotomy. There was a statistically significant change in pupil diameter (p=0,001). The average keratometric parameter K1 values before and after capsulotomy were 42.67±2.80 D and 42.54±2.81 D respectively. This difference was statistically significant (p=0.040). The changes in AL, spherical and cylindrical powers, K2, mean K, WTW, CCT and ACD were not found statistically significant (p=0.247, p=0.484, p=0.686, p=0.769, p=0.085, p=0.138, p=0.171 and p=0.891 respectively).
Conclusion: We found no statistically significant change in AL, ACD, CCT, mean K, K2, WTW, spherical and cylindrical powers after Nd:YAG laser capsulotomy. However, we found a statistically significant change in K1 and pupil diameter in this study.
Keywords : Anterior chamber depth, Nd:YAG laser capsulotomy, posterior capsule opacification