안경과 콘택트렌즈 착용에 따른 근거리안위의 변화

Han, Sun-Hee;Kim, Bong-Hwan;Kim, Hak-Jun;Park, Jun-Sung;Park, Hae-Been;Kim, Mi-Jeong;Park, Ju-Hyeong;Kim, Jin-Sol;Lee, Kyeong-Hoon;Kim, Jong-Hwan;Ha, Na-Ri

  • 투고 : 2015.09.20
  • 심사 : 2015.10.01
  • 발행 : 2015.12.31


Purpose. This study was to investigate comparison of the near eye position according to the spectacle and contact lens wearing. Methods. We measured the AC/A ratio and near horizontal phoria using modified Thorington method in each case spectacle and contact lens wearing of equivalent spherical power after measuring the full corrected diopter for 20 subjects (men 5, woman 15, $21.15{\pm}1.35$ years) without specific ocular diseases, ocular surgery experience and vision anomalies. Results. It was shown high correlation between spectacle and contact lens wearing as AC/A ratio is a correlation coefficient 0.99 (p=0.00), near horizontal phoria is a correlation coefficient 0.95 (p=0.00). And contact lens wearing increased as AC/A ratio by $0.32{\pm}1.35$ ${\Delta}/D$ (p=0.31) and near horizontal phoria by $-0.17{\pm}2.18$ ${\Delta}$ (p=0.73) than spectacle wearing but there was no statistically significant difference. As the higher myopic grade AC/A ratio increased and then was shown decreased tendency in -6.00 D < $SED{\leq}-4.00$ D group (p>0.05) and as the higher myopic grade near exophoria increased but there was no statistically significant difference (p>0.05). Conclusions. We should consider that the subjects who had the lower AC/A ratio or higher near exophoria in -6.00 D < $SED{\leq}-4.00$ D group were necessary to measure AC/A ratio and near horizontal phoria when they were wearing contact lens because contact lens wearing tended to increase the near exophoria than spectacle wearing.


AC/A ratio;Contact lens;Myopia;Near horizontal phoria;Spectacle


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