역기하렌즈 착용 후 안광학 성분들의 변화에 대한 연구 (A Study on Changes in Ocular Components After Wearing Reverse Geometry Lenses)

서지정보

· 발행기관 : 대한시과학회
· 수록지 정보 : 대한시과학회지 / 15권 / 1호 / 53 ~ 64페이지
· 저자명 : 윤민화, 박현주

초록

목 적 : 역기하렌즈 착용 후 안광학 성분들의 변화에 대한 관련성을 알아보고자 한다.
방 법 : 7세에서 15세 사이의 –1.00D에서 –6.50D 이하, 총 27명(54안)을 대상으로 역기하렌즈 착용 전, 3~6개월, 7~12개월, 13~24개월, 25~36개월 후의 나안시력, 동공직경, 각막두께, 전방깊이, 각막곡률반경, 굴절교정 값의 변화에 대한 통계적 유의성을 검증하고자 하였다.
결 과 : 역기하렌즈를 착용하기 전의 나안시력은 0.33±0.19, 3~6개월 후에는 0.97±0.14로 0.63±0.22 향상되었고, 7~12개월 후에는 0.95±0.17로 0.61±0.23만큼 향상되었으며, 13~24개월 후에는 0.91±0.22로 0.57±0.27만큼 향상되었고, 25~36개월 후에는 시력 0.86±0.27로 0.52±0.32만큼 향상되어 통계적으로 유의한 변화를 보였다(p<0.05). 굴절교정 값의 변화는 12개월까지는 변화가 없었고, 13~24개월은 -0.19±0.50D로, 25~36개월은 -0.30±0.62D로 증가해 통계적으로 유의(p<0.05)한 변화를 보였다. 각막곡률반경은 3~6개월은 1.45±0.97mm로, 7~12개월은 1.40±1.12mm로, 13~24개월은 1.26±1.34mm, 25~36개월은 1.08±1.54mm로 감소하여 통계적으로 유의한 변화를 보였다(p<0.05). 각막두께는 3~6개월은 2.21±10.70μm로, 7~12개월은 1.21±12.42μm로 감소했지만 유의하지 않았고, 13~24개월은 0.79±13.17μm로, 25~36개월은 1.93±13.97μm 증가했지만 유의하지 않았다. 동공크기는 3~6개월은 0.18±0.64mm로, 7~12개월은 0.20±0.64mm, 13~24개월은 0.14±0.53mm로, 25~36개월은 0.25± 0.56mm 감소해 유의한 변화를 보였다(p<0.05). 전방깊이는 3~6개월은 0.66±0.08mm, 7~12개월은 0.03±0.99mm로 유의하게 감소했으며(p<0.05), 13~24개월은 0.03±0.13mm 감소했지만 통계적으로는 유의(p=0.14)하지 않았고, 25~36개월은 0.05±0.14mm 감소해 통계적으로 유의(p<0.05)한 변화를 보였다.
결 론 : 역기하렌즈를 착용하고 36개월 동안 나안시력이 향상되고, 굴절교정 값의 변화는 크지 않았으며, 각막곡률과 동공크기 및 전방깊이 등의 유의한 변화가 관찰되었다.

영어초록

Purpose : To investigate changes in ocular components after wearing reverse geometry lenses.
Method : We aimed to verify the statistical significance of inhibitive effects against the progression of myopia, based on medical records regarding changes in the uncorrected visual acuities, pupil diameters, central corneal thicknesses, anterior chamber depths, base curves of the average K-readings and corrected visual acuities of a total of twenty-seven (fifty-four eyes) children and teenagers between the ages of seven and fifteen, and of visions between –1.00D and –6.50 D; before wearing reverse geometry lenses, after three to six months of use, at seven to twelve months of use, at thirteen to twenty-four months of use and at twenty-five to thirty-six months of using the lenses.
Results : After wearing reverse geometry lenses, the uncorrected visual acuities showed significant improvement, from 0.33±0.19 initially to an increase by 0.33±0.19 to 0.97±0.14 at three-to-six months, to an increase by 0.61±0.23 to 0.95±0.17 at seven-to-twelve months, to an increase by 0.57±0.27 to 0.91±0.22 at thirteen-to-twenty-four months, and to an increase by 0.52±0.32 to 0.86±0.27 at twenty-five-to-thirty-six months of use. which was 0.33±0.19, by 0.63±0.22 (0.97±0.14) at three to six months of use, 0.61±0.23 (0.95±0.17) at seven to twelve months of use, 0.57±0.27 (0.91±0.22) at thirteen to twenty-four months of use and 0.52±0.32 (0.86±0.27) at twenty-five to thirty-six months of use. The subjects' average corrected visual acuity remained unchanged through twelve months and then showed statistically significant (p<0.05) change, of 0.19±0.50 at thirteen through twenty-four months and 0.30±0.62 at twenty-five to thirty-six months. Average K-readings showed statistically significant changes, declining by 1.45±0.97mm at three to six months, 1.40±1.12mm at seven to twelve months, 1.26±1.34mm at thirteen to twenty-four months and 1.08±1.54mm at twenty-five to thirty-six months. The participants' central corneal thicknesses declined by 2.21±10.70μm at three to six months and 1.21±12.42μm at seven to twelve months, but this was not statistically significant(P>0.05), and they increased by 0.79±13.17μm and 1.93±13.97μm at thirteen to twenty-four months and twenty-five to thirty-six months, respectively, but this also failed to show any statistically significant (P=0.30) change. The pupil diameters decreased by 0.18±0.64mm at three to six months, 0.20±0.64mm at seven to twelve months, 0.14±0.53mm at thirteen to twenty-four months and 0.25±0.56mm at twenty-five to thirty-six months, showing significant (P<0.05) change. The subjects' anterior chamber depths decreased with statistical significance (P<0.05) by 0.66±0.08mm at three to six months and 0.03±0.99mm at seven to twelve months, while they decreased by 0.03±0.13mm at thirteen to twenty-four months, which was not statistically significant (P=0.14), and decreased by 0.05±0.14mm at twenty-five to thirty-six months, a statistically significant (P<0.05) change.
Conclusion : Over the course of thirty-six months in which the subjects wore reverse geometry lenses, unaided visual acuities were improved, changes in refractive error were insignificant, and significant changes were observed in corneal base curves, pupil diameters and anterior chamber depths, etc. in them.

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