| Comparision of the Clinical Results in Photorefractive Keratectomy with that in Laser In Situ Keratomileusis for Correction of Moderate Myopia. |
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Min Soo Choi, Dong Ho Lee, Ha Bum Lee |
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Department of Ophthalmology, College of Mediciine, Inje University, Pusan Paik Hospital. |
| 중등도 근시안에서의 레이저 각막절삭가공성형술과 레이저각막절제술의 임상결과 비교 |
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최민수(Min Soo Choi),이동호(Dong Ho Lee),이하범(Ha Bum Lee) |
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| Abstract |
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We have performed photorefractive keratectomy(PRK) and Laser In situ keratomileusis(LASIK) to compare the clinical results of PRK with that of LASIK in moderate myopes retrospectively. Of 70 eyes who were between -4.0 diopter and -8.0 diopter, there were 40 eyes, 33 patients treated by PRK and 30 eyes, 23 patients treated by LASIK. Follow-up evaluations were done at 1, 2, 3, 6, 9 months and uncorrected visual acuity, best corrected visual acuity, spherical equivalent, corneal haze, complications were analized. The postoperative uncorrected visual acuity was 0.72, 0.86, 0.86, 0.91, 0.85 in PRK and 0.86, 0.86, 0.83, 0.85, 0.82 in LASIK and the best corrected visual acuity was 0.94, 0.97, 0.97, 0.99 0.97 in PRK and 0.96, 0.97, 0.97, 0.97, 0.96 in LASIK respectively. Although the postoperative refractions within +/-1 diopter of emmetropia were 32.5% in PRK and 76.7% in LASIK and statistically significantly different between the two groups at 1 months(P<0.05), the difference was not significant(P>0.05) from 2 months. The average corneal haze was not significant(P>0.05) from 2 months. The average corneal haze was decreased from Grade 1.66 to Grade 0.48 in PRK at 1, 6 months but in LASIK, the corneal haze was low grade of Grade 0.35 from 1 month. The complications of PRK were irregular astigmatisms in 2 eyes and that of LASIK, the corneal haze was low irregular astigmatisms in 2 eyes and that of LASIK were interface particles in 3 eyes, irregular astigmatisms in 3 eyes. The clinical results of PRK and LASIK were satisfactory and the two technical methods were effective for correction of moderate myopes. |
| Key Words:
LASIK;Laser in-situ keratomileusis;Moderate myopia;PRK;Photorefractive keratectomy |
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