모노비전 각막굴절교정 노안 수술 후 시기능 평가
목적: 모노비전 시력교정 수술을 받은 노안을 대상으로 수술 후 시력과 양안시기능 변화를 평가하였다. 방법: 모노비전 노안교정 수술(라식 또는 라섹)을 받은 환자 58명(49.57 ± 3.27세)을 대상으로 하였다. 시기능은 100% 및 10% 대비시력, 근거리 입체시, 원·근거리 폭주융합력과 조절력을 측정하였으며, 실생활에서 느끼는 시각적 만족도는 설문조사를 이용하여 평가하였다. 수술 전 검사는 안경이나 콘택트렌즈를 착용한 상태에서 측정하였고, 수술 후에는 1, 3, 6 개월 후에 측정하였으며, 검사값은 SPSS 21.0을 이용하여 분석하였다.
결과: 대상자 58명 중 원시안은 5명(10안), 근시안은 53명(106안)이었다. 수술 후 양안 원거리 및 근거리 시력은 수술 전보다 저하되었고, 특히 박명시 상태에서 10 % 대비시력은 크게 감소하였으며, 수술 1개월 후 부터는 경과기간에 따라서 차이가 없었다. 설문조사 결과에서는 수술 후 원거리와 근거리 시력 만족도는 향상되었고, 야간 빛번짐이 불편사항으로 나타났으나 전반적인 만족도는 높았다. 모노비전 수술 후 근거리 입체시와 원거리 폭주융합력은 감소하였고, 근거리 억제와 근거리 폭주융합력은 차이가 없었으며, 양안과 비 우세안의 조절력은 증가하였다.
결론: 모노비전 각막굴절교정 수술 후 시력, 근거리 입체시와 원거리 융합력은 안경이나 콘택트렌즈 착용 시보다 감소하였지만 시생활에서 시각적 만족도는 높게 나타났다.
Purpose : To assess the change of binocular visual function and visual acuity in monovision surgery patients.
Methods : The subjects were 58(49.57 ± 3.27 years) monovision patients who wear glasses and contact lens before monovision surgery. 100% and 10% contrast visual acuity, near stereoacuity, distance and near convergence fused amplitude, amplitude of accommodation were measured and visual satisfaction in the real life after surgery was evaluated using a Questionnaire. All measurements were conducted before and after 1, 3 and 6 months of surgery. The pre-operative measurements were performed with glasses or contact lenses on, and post-operative measurements were conducted in the naked eye. All measurements among groups were statistically analyzed with the SPSS 21.0.
Results : Among 58 subjects, 5 subjects (10 eyes) were hyperopia, 53 subjects (106 eyes) were myopia. Binocular distance and near contrast visual acuity was decreased after surgery, especially the 10 % contrast visual acuity under mesopic condition was decreased and there was no difference according to the postoperative period. In the questionnaire survey, satisfaction of distance and near vision after surgery was getting better, and night glare was worsen compare to pre-operation, however, general satisfaction was high after surgery. The near stereoacuity and distance convergence fused amplitude were decreased, and no changes in near sensory suppression and near convergence fused amplitude, and the amplitude of accommodation was increased in binocular and non-dominant eye after monovision surgery. Conclusion : The visual acuity, near stereoacuity and distance convergence fused amplitude were decreased after monovision surgery compared to progressive glasses multifocal contact lens wear, however, visual satisfaction in real life was improved.