Distribution of Lenticular Astigmatism in a Pre-Cataract Surgery Population
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Recently custom ablation of LASIK (laserin situ keratomileusis) has rapidly evolved. It could achieve supervision temporarily, but we suspect that the vision could deteriorate due to against-the rule astigmatism decades after the operation. To clarify this concern, we evaluated distribution of the total and corneal astigmatism of 101 eyes of 65 pre-cataract surgery patients (meanage:73 years). Then we calculated the lenticular astigrlatism by vector analysis. The mean amounts of total and corneal astigmatism were 1.22±1.50D and 0.97±0.84D each. The percentages of no astigmatism: oblique: with-the-rule: against-the-rule were 32: 4: 15: 50 and 7: 28: 26: 40, respectively. The mean amount of lenticular astigrlatism measured by vector analysis was 1.6± 1.4D. The percentage of no astigmatism: oblique: with-the-rule: against-the-rule was 2: 0: 39: 59. This biased distribution of astigmatism might have contributed to the biased distribution (no and against-the-rule) of total astigmatism. These data indicate that in a pre-cataract surgery population against-the-rule astigmatism is predominant in both corneal and lenticular astigmatism. We suspect that custom correction of adolescent eyes, in which with-the-rule astigmatism is predominant, might elicit more against-the-rule astigmatism when they reach pre-cataract surgery age population, leading to a decline in quality of vision.
identifier:Journal of Nara Medical Association Vol.54 No.1 p.13-16
identifier:13450069
identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/91
identifier:Journal of Nara Medical Association, 54(1): 13-16
収録刊行物
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- Journal of Nara Medical Association
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Journal of Nara Medical Association 54 (1), 13-16, 2003-02-28
奈良医学会
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詳細情報 詳細情報について
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- CRID
- 1050001337493831296
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- NII論文ID
- 120004972741
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- NII書誌ID
- AA11252383
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- ISSN
- 13450069
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- 本文言語コード
- en
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- 資料種別
- departmental bulletin paper
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- データソース種別
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- IRDB
- CiNii Articles