Journal of the Korean Ophthalmological Society 1999;40(8):2118-2125.
Published online August 1, 1999.
Outcome of Excimer Laser Photorefractive Keratectomy Associated with Schirmer Test.
Byung Hyun Lee, Jae Bong Kim, Kun Jin Yang
Department of Ophthalmology, School of Medicine, Chonnam National University, Kwangju, Korea.
Schirmer 검사와 엑시머레이저 굴절교정각막절제술의 효과
이병현(Byung Hyun Lee),김재봉(Jae Bong Kim),양건진(Kun Jin Yang)
Abstract
To evaluate the clinical results of excimer laser photorefractive keratectomy(PRK)in dry eyes,the surgical outcomes &complications were studied in 68 eyes of 34 patients who had received PRK from June,1996 to December, 1997 at Department of Ophthalmology,Chonnam National University Hospital.The patients were divided into two groups according to the preoperative Schirmer test value(Group A :Schirmer test value <5 mm, Group B :Schirmer test value >10 mm).In Group A,uncorrected visual acuity(UCVA)of better than 20/40 was 38(90.5%)eyes at 3 months and 39 (92.8%)of 42 eyes at last follow up.In Group B,UCVA of better than 20/40 was 23(88.5%)eyes at 3 months and 25 (96.2%)of 26 eyes at last follow up.Thirty six(85.7%)eyes and 23(88.5%)eyes achieved within +/-1 diopter of spherical equivalent at 3 months and thirty two(76%)eyes and 20(77%) eyes achieved within +/-1 diopter of spherical equivalent at last follow up in Group A &Group B respectively.The mean epithelial healing time was 3.38 +/-0.76 days in Group A and 3.23 +/-0.60 days in Group B. In conclusion,there is no statistically significant differences in postoperative results after excimer laser PRK between the two groups. Postoperatively tear deficiency symptoms such as foreign body sensation or feeling of dryness was more common symptoms in relative tear deficiency patients. Further long term follow up study should be done to identify the any other differences of two groups.
Key Words: Dry eye;Excimer laser photorefractive keratectomy;Schirmer test


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