Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Northern China
Purpose. To analyze the prevalence and presentation patterns of corneal astigmatism in cataract surgery candidates in a teaching hospital in northern China. Methods. From May 1, 2012, to April 30, 2013, partial coherence interferometry (IOLMaster) measurements of all qualified cataract surgery candi...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2014/536412 |
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| author | Xiaoyong Yuan Hui Song Gang Peng Xia Hua Xin Tang |
| author_facet | Xiaoyong Yuan Hui Song Gang Peng Xia Hua Xin Tang |
| author_sort | Xiaoyong Yuan |
| collection | DOAJ |
| description | Purpose. To analyze the prevalence and presentation patterns of corneal astigmatism in cataract surgery candidates in a teaching hospital in northern China. Methods. From May 1, 2012, to April 30, 2013, partial coherence interferometry (IOLMaster) measurements of all qualified cataract surgery candidates were retrospectively collected and analyzed. Results. The study evaluated 12,449 eyes from 6,908 patients with a mean age of 69.80±11.15 (SD) years. The corneal astigmatism was 0.5 diopters (D) or less in 20.76% of eyes, 1.0 D or more in 47.27% of eyes, 2.0 D or more in 13.16% of eyes, and 3.0 D or more in 3.75% of eyes. With-the-rule astigmatism was found in 30.36% of eyes, while against-the-rule was found in 52.41% of eyes. The percentage of against-the-rule astigmatism increased with age. Conclusion. Our study showed that almost one-half of preoperative eyes (47.27%) in northern China have a corneal astigmatism of 1.0 D or more, indicating that more surgical techniques or toric IOLs are needed to achieve better visual rehabilitation. |
| format | Article |
| id | doaj-art-b0cebe3250fa4210826247618992842a |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-b0cebe3250fa4210826247618992842a2025-02-03T05:59:42ZengWileyJournal of Ophthalmology2090-004X2090-00582014-01-01201410.1155/2014/536412536412Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Northern ChinaXiaoyong Yuan0Hui Song1Gang Peng2Xia Hua3Xin Tang4Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, No. 4 Gansu Road, Heping District, Tianjin 300020, ChinaTianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, No. 4 Gansu Road, Heping District, Tianjin 300020, ChinaDepartment of Bioinformatics and Computational Biology, University of Texas, MD Anderson Cancer Center, Houston, TX 77030, USATianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, No. 4 Gansu Road, Heping District, Tianjin 300020, ChinaTianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, No. 4 Gansu Road, Heping District, Tianjin 300020, ChinaPurpose. To analyze the prevalence and presentation patterns of corneal astigmatism in cataract surgery candidates in a teaching hospital in northern China. Methods. From May 1, 2012, to April 30, 2013, partial coherence interferometry (IOLMaster) measurements of all qualified cataract surgery candidates were retrospectively collected and analyzed. Results. The study evaluated 12,449 eyes from 6,908 patients with a mean age of 69.80±11.15 (SD) years. The corneal astigmatism was 0.5 diopters (D) or less in 20.76% of eyes, 1.0 D or more in 47.27% of eyes, 2.0 D or more in 13.16% of eyes, and 3.0 D or more in 3.75% of eyes. With-the-rule astigmatism was found in 30.36% of eyes, while against-the-rule was found in 52.41% of eyes. The percentage of against-the-rule astigmatism increased with age. Conclusion. Our study showed that almost one-half of preoperative eyes (47.27%) in northern China have a corneal astigmatism of 1.0 D or more, indicating that more surgical techniques or toric IOLs are needed to achieve better visual rehabilitation.http://dx.doi.org/10.1155/2014/536412 |
| spellingShingle | Xiaoyong Yuan Hui Song Gang Peng Xia Hua Xin Tang Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Northern China Journal of Ophthalmology |
| title | Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Northern China |
| title_full | Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Northern China |
| title_fullStr | Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Northern China |
| title_full_unstemmed | Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Northern China |
| title_short | Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Northern China |
| title_sort | prevalence of corneal astigmatism in patients before cataract surgery in northern china |
| url | http://dx.doi.org/10.1155/2014/536412 |
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