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Objective: To investigate the use of iTrace aberrometer observation of phacoemulsification and intraocular lens (intraocular lens, IOL) implantation surgery before and after corneal higher-order aberrations change; cataract phacoemulsification and implantation of the three groups after aspheric IOL different full eyeball compare different eye in different spatial frequency the next spherical aberration under the influence of MTF value of an aspheric IOL spherical aberration of the human eye to retain the number of balls the difference between patients can get a better visual quality, the best The ball difference provides a theoretical basis. Methods: 50 cases (56) age-related cataract patients with 2.8mm clear corneal incision phacoemulsification cataract suction joint foldable IOL implantation, one day before surgery, respectively, after seven days, one month 3 months use iTrace visual function analyzer measurement of corneal higher-order aberrations (including total higher-order aberrations, spherical aberration, coma, clover, and 3-6 order aberrations), select the pupil diameter of 3.0 mm, 6.0mm within the higher-order aberrations, the corneal higher-order aberrations diameter range is divided into two groups to compare them. The two sets of data were statistically analyzed with a repeated measure two factors quantitative data analysis of variance method. Select cataract phacoemulsification and IOL implantation in patients with 120 107 cases, 33 cases of 36 based on implant the aspheric IOL types of ZA9003 IOL group of 35 patients 41, PY60AD IOL group 39 patients (43), ADAPT-AO IOL group eye after three months in patients with uncorrected visual acuity, best corrected visual acuity (BCVA) check; application iTrace visual function analyzer inspection records 3.0 mm, 6.0mm pupil diameter under the whole eye constituents of higher-order aberrations and spherical aberration in The function of the modulation and demodulation (modulation transfer function, MTF) value. Results: Preoperative 3.0mm, 6.0mm diameter corneal spherical aberration, respectively (0.027 ± 0.037) μm, (0.287 ± 0.154) μm, postoperative 1w (0.037 ± 0.059) μm (0.306 ± 0.131) μm, postoperative 1m, (0.034 ± 0.048) μm, (0.310 ± 0.232) μm, postoperative 3m (0.032 ± 0.041) μm (0.291 ± 0.224) μm, before and after surgery, the difference was not statistically significance (P gt; 0.05), the rest of the items higher-order aberrations and changes in total higher-order aberrations before and after surgery is similar to the spherical aberration changes. Three groups of patients with uncorrected visual acuity and best corrected visual acuity was no significant difference (P gt; 0.05). 3.0mm pupil diameter, three groups of non-spherical IOL eye of each component of the higher-order aberrations, the difference was not statistically significant (P gt; 0.05); 6.0mmm pupil diameter, three groups of non-spherical IOL eyes high-end like poor in each component, except spherical aberration, the difference was not statistically significant (P gt; 0.05). 3.0mm pupil diameter, under the influence of the three groups aspheric IOL spherical aberration MTF value comparison, the difference was not statistically significance (P gt; 0.05); 6.0mmm pupil diameter under three groups aspheric IOL spherical aberration under the influence the MTF values ??comparison spatial frequency 5cpd 10cpd, the 15cpd, 20cpd time, a statistically significant difference among the three groups (P lt; 0.05) the size of the MTF values ??among the three groups: PY-60AD gt; ZA9003 gt ; ADAPT-AO; spatial frequency 25cpd, 30cpd, PY-60AD other two groups were statistically significant differences (P lt; 0.05); ZA9003 with ADAPT-AO two groups showed no significant difference ( P gt; 0.05). Conclusions: phacoemulsification In addition to the higher-order aberrations of the anterior corneal surface after the change does not affect postoperative visual quality. The second part cause eye aberration changes from different IOL implantation after cataract phacoemulsification and implantation of aspheric intraocular lens to provide a theoretical basis for this study to further evaluate the visual quality of the different non-spherical IOL implantation. Aspheric IOL implantation eyeball poor retention of about 0.1μm, patients with higher visual quality.
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