Visual outcomes and optical quality after implantation of a diffractive multifocal toric intraocular lens
Background: This study evaluated the visual function after implantation of a multifocal toric intraocular lenses (IOLs). Materials and Methods: This study involved 10 eyes from eight cataract patients with corneal astigmatism of 1.0 diopter (D) or higher who had received phacoemulsification with imp...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2016-01-01
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| Series: | Indian Journal of Ophthalmology |
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| Online Access: | http://www.ijo.in/article.asp?issn=0301-4738;year=2016;volume=64;issue=4;spage=285;epage=291;aulast=Chen |
| _version_ | 1831764098981822464 |
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| author | Xiangfei Chen Ming Zhao Yuhua Shi Liping Yang Yan Lu Zhenping Huang |
| author_facet | Xiangfei Chen Ming Zhao Yuhua Shi Liping Yang Yan Lu Zhenping Huang |
| author_sort | Xiangfei Chen |
| collection | DOAJ |
| description | Background: This study evaluated the visual function after implantation of a multifocal toric intraocular lenses (IOLs). Materials and Methods: This study involved 10 eyes from eight cataract patients with corneal astigmatism of 1.0 diopter (D) or higher who had received phacoemulsification with implantation of an AcrySof IQ ReSTOR Toric IOL. Six-month evaluations included visual acuity, spherical equivalent (SE), defocus curve, residual astigmatism, IOL rotation, contrast sensitivity (CS), wavefront aberrations, modulation transfer function (MTF), and patient satisfaction assessments. Results: At 6 months postoperatively, uncorrected distance visual acuity (logarithm of the minimum angle of resolution) was 0.09 ± 0.04, corrected distance visual acuity was 0.02 ± 0.11, and uncorrected near visual acuity was 0.12 ± 0.07. The mean SE was −0.095 ± 0.394 D (±0.50 D in 90%). Refractive astigmatism at the 6-month follow-up visit was significantly reduced to 0.35 ± 0.32 D from 1.50 ± 0.41 D presurgery (P < 0.05). The mean IOL axis rotation was 3.20 ± 1.55°. Postoperative CS levels were high. Postoperative total order aberrations (TOAs), lower-order aberrations (LOAs), higher-order aberrations (HOAs), and spherical aberrations were decreased compared with preoperative values (P < 0.05). At 3 months postoperatively, TOAs, LOAs, and HOAs with a 3 mm pupil diameter as well as TOAs, LOAs, and astigmatism aberrations with a 5 mm pupil diameter were statistically lower than those at 1-month post surgery, but without subsequent significant changes (P > 0.05). There was an increase in MTF results between preoperative and postoperative evaluations at all spatial frequencies. Conclusions: The diffractive multifocal toric IOL is able to provide a predictable astigmatic correction with apparently outstanding levels of optical quality after implantation. |
| first_indexed | 2024-12-22T05:37:09Z |
| format | Article |
| id | doaj.art-f61477cc6a6a413c8cadb0096bd4db6a |
| institution | Directory Open Access Journal |
| issn | 0301-4738 1998-3689 |
| language | English |
| last_indexed | 2024-12-22T05:37:09Z |
| publishDate | 2016-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Ophthalmology |
| spelling | doaj.art-f61477cc6a6a413c8cadb0096bd4db6a2022-12-21T18:37:17ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47381998-36892016-01-0164428529110.4103/0301-4738.182939Visual outcomes and optical quality after implantation of a diffractive multifocal toric intraocular lensXiangfei ChenMing ZhaoYuhua ShiLiping YangYan LuZhenping HuangBackground: This study evaluated the visual function after implantation of a multifocal toric intraocular lenses (IOLs). Materials and Methods: This study involved 10 eyes from eight cataract patients with corneal astigmatism of 1.0 diopter (D) or higher who had received phacoemulsification with implantation of an AcrySof IQ ReSTOR Toric IOL. Six-month evaluations included visual acuity, spherical equivalent (SE), defocus curve, residual astigmatism, IOL rotation, contrast sensitivity (CS), wavefront aberrations, modulation transfer function (MTF), and patient satisfaction assessments. Results: At 6 months postoperatively, uncorrected distance visual acuity (logarithm of the minimum angle of resolution) was 0.09 ± 0.04, corrected distance visual acuity was 0.02 ± 0.11, and uncorrected near visual acuity was 0.12 ± 0.07. The mean SE was −0.095 ± 0.394 D (±0.50 D in 90%). Refractive astigmatism at the 6-month follow-up visit was significantly reduced to 0.35 ± 0.32 D from 1.50 ± 0.41 D presurgery (P < 0.05). The mean IOL axis rotation was 3.20 ± 1.55°. Postoperative CS levels were high. Postoperative total order aberrations (TOAs), lower-order aberrations (LOAs), higher-order aberrations (HOAs), and spherical aberrations were decreased compared with preoperative values (P < 0.05). At 3 months postoperatively, TOAs, LOAs, and HOAs with a 3 mm pupil diameter as well as TOAs, LOAs, and astigmatism aberrations with a 5 mm pupil diameter were statistically lower than those at 1-month post surgery, but without subsequent significant changes (P > 0.05). There was an increase in MTF results between preoperative and postoperative evaluations at all spatial frequencies. Conclusions: The diffractive multifocal toric IOL is able to provide a predictable astigmatic correction with apparently outstanding levels of optical quality after implantation.http://www.ijo.in/article.asp?issn=0301-4738;year=2016;volume=64;issue=4;spage=285;epage=291;aulast=ChenAberrationastigmatismcataractcontrast sensitivitymultifocal intraocular lenstoric intraocular lens |
| spellingShingle | Xiangfei Chen Ming Zhao Yuhua Shi Liping Yang Yan Lu Zhenping Huang Visual outcomes and optical quality after implantation of a diffractive multifocal toric intraocular lens Indian Journal of Ophthalmology Aberration astigmatism cataract contrast sensitivity multifocal intraocular lens toric intraocular lens |
| title | Visual outcomes and optical quality after implantation of a diffractive multifocal toric intraocular lens |
| title_full | Visual outcomes and optical quality after implantation of a diffractive multifocal toric intraocular lens |
| title_fullStr | Visual outcomes and optical quality after implantation of a diffractive multifocal toric intraocular lens |
| title_full_unstemmed | Visual outcomes and optical quality after implantation of a diffractive multifocal toric intraocular lens |
| title_short | Visual outcomes and optical quality after implantation of a diffractive multifocal toric intraocular lens |
| title_sort | visual outcomes and optical quality after implantation of a diffractive multifocal toric intraocular lens |
| topic | Aberration astigmatism cataract contrast sensitivity multifocal intraocular lens toric intraocular lens |
| url | http://www.ijo.in/article.asp?issn=0301-4738;year=2016;volume=64;issue=4;spage=285;epage=291;aulast=Chen |
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