Comparisons of Clinical Results after Implantation of Three Aspheric Intraocular Lenses

PURPOSE: To compare the clinical results after implantation of three one-piece aspheric lenses, Acrysof IQ SN60WF, Tecnis 1-piece ZCB00 and the newly developed IOL HOYA AF-1 NY-60. METHODS: In total 66 eyes, one of three one-piece aspheric lenses, Acrysof IQ SN60WF, TECNIS 1-piece ZCB00 or HOYA AF-1 NY-60 was implanted after cataract extraction. Best corrected visual acuity (BCVA) and uncorrected visual acuity (UCVA) were assessed at postoperative 3 months. Total spherical aberration, high order aberration and modulation transfer function of 5.0 mm pupil size zone were evaluated. RESULTS: There were no significant differences of UCVA, BCVA, the accuracy of postoperative refractive power and modulation transfer function among three groups. High order aberrations of the entire eye and internal optics showed almost no significant differences except some aberration values. CONCLUSIONS: The newly developed intraocular lens, HOYA AF-1 NY-60 showed almost equal clinical results in comparison with Acrysof IQ SN60WF and TECNIS 1-piece ZCB00.

Influence of Pupil Size on Visual Acuity after Implantation of the TECNIS 1-Piece Intraocular Lens

PURPOSE: To evaluate the influence of pupil size on uncorrected visual acuity and spherical aberration of the TECNIS 1-piece intraocular lens (IOL). METHODS: In this study 61 eyes were implanted with a TECNIS 1-piece IOL. Pupil size was checked by standard pupil card with cobalt blue light postoperatively. Best corrected visual acuity (BCVA) and uncorrected visual acuity (UCVA) were assessed postoperatively. Total spherical aberration and high-order aberration for mesopic pupil size zone were measured. RESULTS: There were no significant differences of spherical equivalent, age, preoperative astigmatism, BCVA between two groups, but small pupil group revealed better UCVA (p = 0.02) and lower ocular aberration than large pupil group. CONCLUSIONS: After cataract surgery, pupil size greater than 5.0 mm increases total aberration. Thus, visual acuity with small pupil after aspheric TECNIS 1-piece IOL implantation show better clinical result on uncorrected visual acuity.