ABSTRACT
PURPOSE: To assess the clinical results of various acrylic intraocular lenses (IOLs) after cataract surgery with respect to the tilting and decentration of IOLs, postoperative high-order (HO) aberration, and duration to gain of refractive stability. METHODS: This prospective study comprised 60 eyes of 53 patients after uneventful cataract surgery with IOLs implantation. Patients were randomized into four groups of 15 eyes each based on IOLs type: MA60BM, SA60AT, AR40e, or Akreos. We analyzed the extent of IOL decentration, tilting and the difference between preoperative predictive refraction and postoperative actual refraction at 1 day, 1 week, 1 month and 2 months after surgery. The postoperative HO aberration was determined at 2 months after surgery. RESULTS The extent of IOL decentration and tilting was not statistically significant among any of the groups (p>0.05). The spherical aberrations, the triangular coma aberrations and HO RMS values were, however, statistically significantly different among the groups (p<0.05). Refractive stability was gained by 2 months in all four groups, but the four IOLs differed in the time to refractive stability: 2 months in the MA60BM group, 1 month in the SA60AT group, 1 day in the AR40e group, and 1 week in the Akreos Adapt group. CONCLUSIONS: All four acrylic IOLs provided satisfactory postoperative results, but there were differences in the time to gain of refractive stability and HO aberration between the four IOLs. These results suggest that a surgeon could achieve a better clinical outcome after cataract surgery by selecting the most suitable IOL for his intention.
Subject(s)
Humans , Cataract , Coma , Intention , Lenses, Intraocular , Prospective StudiesABSTRACT
PURPOSE: To assess the clinical results of various acrylic intraocular lenses (IOLs) after cataract surgery with respect to the tilting and decentration of IOLs, postoperative high-order (HO) aberration, and duration to gain of refractive stability. METHODS: This prospective study comprised 60 eyes of 53 patients after uneventful cataract surgery with IOLs implantation. Patients were randomized into four groups of 15 eyes each based on IOLs type: MA60BM, SA60AT, AR40e, or Akreos. We analyzed the extent of IOL decentration, tilting and the difference between preoperative predictive refraction and postoperative actual refraction at 1 day, 1 week, 1 month and 2 months after surgery. The postoperative HO aberration was determined at 2 months after surgery. RESULTS The extent of IOL decentration and tilting was not statistically significant among any of the groups (p>0.05). The spherical aberrations, the triangular coma aberrations and HO RMS values were, however, statistically significantly different among the groups (p<0.05). Refractive stability was gained by 2 months in all four groups, but the four IOLs differed in the time to refractive stability: 2 months in the MA60BM group, 1 month in the SA60AT group, 1 day in the AR40e group, and 1 week in the Akreos Adapt group. CONCLUSIONS: All four acrylic IOLs provided satisfactory postoperative results, but there were differences in the time to gain of refractive stability and HO aberration between the four IOLs. These results suggest that a surgeon could achieve a better clinical outcome after cataract surgery by selecting the most suitable IOL for his intention.
Subject(s)
Humans , Cataract , Coma , Intention , Lenses, Intraocular , Prospective StudiesABSTRACT
PURPOSE: This study evaluates the capsular bag diameter (CBD) with a capsular tension ring (CTR) following cataract surgery and analyzes the predictive factors correlated with capsular bag size to predict CBD preoperatively. METHODS: We inserted the CTR before intraocular lens (IOLs) implantation in 25 eyes undergoing cataract surgery. The axial length (AL), anterior chamber depth (ACD), and lens thickness were measured and keratometry and corneal size were checked preoperatively. Also, the continuous curvilinear capsulorhexis size was measured at 7 days postoperative, and CBD was calculated with CTR in a dilated state at 1day, 1week, 1 month, and 2 months postoperative. RESULTS: The mean CBD gradually decreased from 11.30+/-1.76 mm at 1 day, 10.86+/-1.06 mm at 1 week, 10.23+/-1.43 mm at 1 month, and 9.88+/-1.31 mm at 2 months. The AL (R=0.657), ACD (R=0.481), and corneal size (R=0.348) had a positive correlation with CBD at 1 week postoperative. The AL (P=0.000) and ACD (p=0.015) were statistically significant predictive factors for CBD. CONCLUSIONS: Calculating CBD with the CTR helps to improve visual acuity following cataract surgery after implantation of IOLs having appropriate sizes predicted with AL, ACD, and corneal size.