Comparison of Postoperative Anterior Chamber Depth and Refractive Change Among Three Types of Single-piece Intraocular Lens

Abstract

Purpose : To investigate postoperative anterior chamber depth (ACD) and refractive change among three types of single-piece intraocular lenses (IOL). Methods : SN60WF (Alcon), ZCB00V (Johnson and Johnson), or NS-60YG (NIDEK) IOL were implanted in 104 eyes of 64 patients. At 1-week, 1- and 3-month post-surgery, ACD and equivalent spherical power (SE) were measured. Results : SE change did not differ significantly by IOL at any time. ACD did not change significantly in eyes with SN60WF. One to three months after surgery, ACD was significantly deeper in eyes with ZCB00V. Ratio of ACD change by ±0.3mm or more between 1 week and 1 month was significantly larger in eyes with NS-60YG than in eyes with SN60WF. Conclusions : A comparison of change in mean ACD over time after insertion of single-piece single focus IOL showed that change in mean ACD in the early postoperative period differs depending on the IOL type. In the early postoperative period, eyes implanted with SN60WF showed a small change in ACD implicating the best postoperative stability of refraction, and NS-60YG may have relatively lower stability of refraction than SN60WF.