| 소아F-010 |
| 두 종류의 자가 조절 안경과 기존 안경의 효과 및 대비 감도의 비교 |
| 연세대학교 의과대학 안과학교실, 시기능개발연구소1, 국립의료원2 |
| 김지원1, 윤상철2, 김윤승1, 이제훈1, 박시윤1, 지용우1, 김태임1, 김응권1, 서경률1 |
|
목적 : Eyeglasses with adjustable power lenses can be an effective solution for the correction of refractive error in developing countries or other resource-limited settings. The purpose of this study is to evaluate the efficacy of two different types of self-adjustable glasses, Focusspec® and ChildvisionTM compared to the conventional eyeglasses.
방법 : This study investigated two different types of self-adjustable eyeglasses: the one that used two sliding lenses and another one that applied fluid-filled lens technology. This prospective study enrolled 13 subjects, 25 eyes with spherical refractive power with range between -1.5 to -5.0 diopter measured by auto-refractor (mean age 27.88±1.96). Visual acuity, spherical equivalent (SE), and contrast sensitivity function at 1.5, 3, 6, 12 and 18 cycles per degree (cpd) spatial frequencies were examined with each type of glasses along with conventional glasses.
결과 : The visual acuity of two self-adjustable glasses showed no significant difference compared to conventional glasses (p=0.058). The mean SE in the conventional glasses was lower than the one in the self-adjustable glasses when measured by lensometer (p<0.001). However, there was no significant difference between SE of self-adjustable glasses and actual eye measurement with auto-refractor (p=1.000). In contrast sensitivity function, there was no significant difference between Childvision and conventional glasses, whereas Focusspec® showed a significant difference for multiple spatial frequency.
결론 : Both types of self-adjustable glasses obtained decent visual acuity and similar spherical equivalent judging by the result of automated refractor. However, sliding lens type presented lower contrast sensitivity than the fluid-filled lens type and conventional glasses. Despite the fact that there are certain aspects that have to be improved, self-adjustable glasses can be alternative method for conventional glasses where refraction by trained eye care provider is not available.
|
| |