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Accession number;00A0403336
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| Title;Refractive changes of posterior corneal surface following excimer laser photorefractive keratectomy. |
| Author;
KAMIYA KAZUTAKA
(Univ. of Tokyo, Fac. of Med.)
OSHIKA TETSURO
(Univ. of Tokyo, Fac. of Med.)
AMANO SHIRO
(Univ. of Tokyo, Fac. of Med.)
MIYATA KAZUNORI
(Miyataganka)
TAKAHASHI TETSUYA
(Miyataganka)
TOKUNAGA TADATOSHI
(Miyataganka)
YOSHIDA TERUHIRO
(Canon Sales Co., Inc.)
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Journal Title;Japanese Journal of Clinical Ophthalmology
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Journal Code:Z0515B
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ISSN:0370-5579
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VOL.54;NO.3;PAGE.317-320(2000)
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| Figure&Table&Reference;FIG.2, TBL.1, REF.21 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;We measured the refractive changes in the posterior corneal surface in 25 eyes of 15 patients who underwent excimer laser photorefractive keratectomy. A scanning-slit corneal topography(Orbscan, Orbtek) was used in the measurement. Posterior corneal refractive power averaged -6.56 diopters(D) preoperatively. It decreased to -7.02D,-7.00D and -7.05D at postoperative 1 week, 1 month and 3 months respectively. The changes were significant(p<0.001, paired t-test). The amount of posterior corneal refractive changes amounted approximately to 10% of the total myopic correction. A significant correlation was present between the amount of refractive change and the residual corneal thickness(Pearson correlation coefficient r=0.617, p<0.001). The findings show that photorefractive keratectomy induces significant changes in the posterior corneal refraction. (author abst.) |
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