Clinical Outcome of Cataract Surgery Using Nasal Clear Corneal Incision: Safety and Usability
To evaluate safety and usability of cataract surgery using nasal clear corneal incision (CCI) in comparison with superior and temporal CCIs in Koreans.
Patients who underwent cataract surgery using CCI by 3 surgeons at Asian Medical Center between January 2012 and December 2013 were divided into three groups according to CCI direction, which is nasal CCIs (group1), superior CCIs (Group II) and temporal CCIs (Group III). To assess safety, intraoperative complication, surgical induced astigmatism (SIA), best corrected visual acuity (BCVA), intraocular pressure (IOP), keratometry, and refractive errors at baseline and 1 month after surgery were compared. To assess usability, operation time and wound stability were compared.
A total of 1374 eyes (Group I: 587 eyes, Group II: 283 eyes, Group III: 504 eyes) were included in this study. There was no significant difference in rate of intraocular complication and SIA among 3 groups. The changes of mean BCVA, IOP, keratometry, refractive errors were not significantly different and the mean operation times were not significantly different in 3 groups (14.04 ± 3.79 vs. 13.80 ± 3.27 vs. 13.80 ± 3.70; P=0.627). Incidence of corneal wound suture were not significantly different in 3 groups (1.7% vs. 3.2% vs. 2.3%; P=0.378).
The safety and usability of cataract surgery using nasal CCI were no significantly different with cataract surgery using temporal and superior CCI. These results provide evidence that cataract surgery using nasal CCI can be performed safely and conveniently.