광학부 중앙원공이 있는 새로운 안내렌즈와 기존 안내렌즈의 임상결과 비교
Comparison of Clinical Outcomes in Implantable Collamer Lens Implantation between AQUA ICL® and Conventional ICL
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목적: 고도근시환자에서의 안내렌즈 삽입술 시, 광학부 중앙 원공이 있는 새로운 AQUA ICL® (V4C)과 기존의 implantable collamer lens (ICL, V4B)의 임상결과를 비교하고자 하였다. 대상과 방법: ICL (V4B)을 삽입한 20안, AQUA ICL® (V4C)을 삽입한 22안을 대상으로 수술 전, 후 시력, 구면렌즈대응치, 안압, 수술후 vault를 측정하였고 OQAS®를 이용한 시력의 질을 비교하였다. 결과: 수술 3개월 후 측정한 시력(logMAR)과 구면렌즈대응치는 V4B군에서 0.06 ± 0.09, -0.26 ± 0.17D, V4C군에서 0.03 ± 0.03, -0.23 ± 0.19D로 두 군 간 유의한 차이가 없었다(p＞0.05). 수술 전, 후의 안압은 두 군 모두 수술 후 6시간까지는 수술 전에 비해상승되어 있었고(p＜0.05) 수술 1일 후부터 3개월 후까지는 수술 전에 비해 유의한 변화가 없었다(p＞0.05). 수술 6시간 후 측정한안압은 V4C군이 V4B군에 비해 유의하게 낮았다(p=0.001). 수술 3개월 후의 objective scattering index (OSI)는 V4B군과 V4C군에서각각 1.29 ± 0.90, 1.36 ± 0.68이었고 modulation transfer function (MTF) cut off value는 각각 29.62 ± 11.31 c/deg, 29.61 ± 9.56 c/deg, Sterhl ratio는 각각 0.18 ± 0.07, 0.17 ± 0.04로 두 군 간 유의한 차이가 없었다(p＞0.05). 결론: AQUA ICL® (V4C)은 효과적이며 편리하고 안전한 시력교정 방법으로 생각되며, 술 후 초기 안압 변동에 있어서는 기존의 ICL (V4B)보다 더 나은 결과를 보인다.
Abstract
Purpose: To compare the clinical outcomes between AQUA ICL® (V4C) and conventional implantable collamer lens (ICL, V4B) in patients with high myopia. Methods: We compared preoperative and postoperative visual acuities, spherical equivalent, intraocular pressure, postoperative vault and visual quality assessed using optical quality analyzing system (OQAS®) between 20 eyes implanted with ICL (V4B) and 22 eyes implanted with AQUA ICL® (V4C). Results: Visual acuity (log MAR) and spherical equivalent at postoperative 3 months were 0.06 ± 0.09 and -0.26 ± 0.17 D in the V4B group and 0.03 ± 0.03 and -0.23 ± 0.19 D in the V4C group, respectively. There was no statistical difference in visual acuity and spherical equivalent between the 2 groups (p > 0.05). Postoperative intraocular pressure (IOP) elevated significantly in both groups until 6 hours after the operation (p < 0.05) compared with preoperative IOP. No significant IOP elevation was observed from the first postoperative day to postoperative 3 months (p > 0.05). V4C resulted in lower IOP than V4B 6 hours postoperatively. In ICL (V4B) and AQUA ICL® (V4C) groups, the objective scattering index (OSI) was 1.29 ± 0.90 and 1.36 ± 0.68, modulation transfer function (MTF) cut off value was 29.62 ± 11.31 c/deg and 29.61 ± 9.56 c/deg and Sterhl ratio was 0.18 ± 0.07 and 0.17 ± 0.04, respectively, 3 months postoperatively. None of these values were significantly different between the 2 groups. Conclusions: AQUA ICL® (V4C) implantation is an effective, convenient and safe surgery for myopia correction and yields better outcome than ICL (V4B) in terms of early postoperative IOP.
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