- 學位論文
戴用稜鏡與正度數眼鏡的電腦使用者之視覺舒適度調查
Investigation of visual comfort in computer users by prescribing prism and plus lenses
摘要
目的：本研究在測試戴了稜鏡與正度數眼鏡後的雙眼視覺變化，並且評估受試者的視覺舒適度問卷，期使能夠在使用電腦的情況下更舒適。 方法：研究對象中山醫學大學校內召募23位受試者，其中有2名度數未全矯正以及1名斜視者被排除，共納入20名受試者(女8位，男12位，平均年齡22±2.63)，為年輕電腦使用者，無任何眼睛相關疾病，受試者戴上自己的全矯正慣用眼鏡後，再分別戴上「具有稜鏡與正度數的前掛眼鏡」與「平光無度數的前掛眼鏡」，然後分別用於電腦閱讀15分鐘，後做視覺舒適度問卷(一、二)，並測試雙眼視覺檢查(近距眼位、ACA比值、調節遲緩、單眼的調節幅度、聚合近點、固視偏差)，當完成測試後，請受試者選出喜歡哪一副前掛眼鏡。最後進一步進行分析，本研究使用的統計方式為描述性統計、T-test、迴歸分析。 結果：使用「稜鏡與正度數眼鏡」與「平光眼鏡」後，雙眼視覺統計分析，近距眼位(P=1.00，T=0.00)、ACA比值(P=0.93，T=0.08)、調節遲緩(P=0.03*，T=-2.33)、右眼的調節幅度(P=0.39，T=-0.87)、左眼的調節幅度(P=0.37，T=0.92)、聚合近點(P=0.29，T=1.07)、固視偏差(P=0.77，T=0.30)。問卷視覺統計分析，我看東西有困難(P=0.330，T=-1.00)、我覺得眼睛週遭有奇怪的感覺(P=0.186，T=-1.37)、我覺得眼睛疲勞(P=0.148，T=-1.51)、我感到眼睛麻木(P=0.186，T=-1.37)、我覺得頭脹痛(P=0.481，T=-0.72)、注視螢幕時，我感覺暈眩(P=0.841，T=-0.20)、總分(P=0.276，T=-1.12)。將「平光眼鏡」與「稜鏡與正度數眼鏡」相減得出差異數值，其中固視偏差(P=0.637)、近距離眼位(P=0.771)、ACA比值(P=0.741)、聚合近點(P=0.014*,R2=0.2841)、聚合近點回復點(P=0.000**,R2=0.5729)、右眼調節幅度(P=0.296)、左眼調節幅度(P=0.684)、調節遲緩(P=0.824)。 結論：使用稜鏡與正度數眼鏡會有較好的調節穩定度，越多的調節遲緩者，感到越暈眩程度越大。稜鏡與正度數眼鏡有助於改善眼睛的聚合能力，使視覺舒適度程度上升。當使用全矯正眼鏡，若聚合近點、調節力較差，視覺舒適度程度下降。稜鏡與正度數眼鏡確實可以帶來更舒適的視覺，75%以上可以接受稜鏡與正度數眼鏡，50%的人喜歡稜鏡與正度數眼鏡。
並列摘要
Purpose: In this study, measure the change of binocular vision and assess the visual fatigue questionnaire. We assume that after wearing computer glasses, the user can use the computer more comfortably. Methods: A total of 23 subjects were recruited from the Chung Shan Medical University. Three subjects were excluded, including two subjects who were not fully corrected and one strabismus. This study included 20 young computer users (8 females , 12 males , mean age 22 ± 2.63), without any eye related diseases. All subjects wore their own full-correction habits glasses and then selected two pairs of clip-ons alternatively. One of the clip-ons contained "plus-prism combination" and the other had "zero power lens". Read the computer articles separately for 15 minutes. After completing the computer reading test, filled out the visual fatigue questionnaire (1, 2) and took the binocular vision measurements(near phorias、AC/A ratio、accommodative lag、amplitude of accommodation、near point of convergence、fixation disparity). When the tests were completed, asked the subjects to choose which clip-ons they preferred. The statistical methods used in this study were descriptive statistics, T-test, and regression analysis. Results: Using the "plus-prism combination lens" and "zero power lens", the binocular vision T-test statistical analysis results were near phorias (P=1.00, T=0.00)、AC/A ratio (P= 0.93,T=0.08)、accommodative lag (P=0.03*,T=-2.33)、right eye amplitude of accommodation (P=0.39,T=-0.87)、left eye amplitude of accommodation (P=0.37,T=0.92)、near point of convergence(P=0.29,T=1.07)、fixation disparity (P=0.77,T=0.30).Questionnaire for visual statistical analysis were "I have difficulties in seeing(P=0.330, T=-1.00)"、"I have a strange feeling around the eyes (P=0.186, T=-1.37)"、"My eyes feel tired(P=0.148, T=-1.51)"、"I feel numb(P=0.186, T=-1.37)"、"I have a headache(P=0.481, T=-0.72)"、" I feel dizzy looking at the screen(P=0.841, T=-0.20)"、"the total score(P = 0.276, T=-1.12)"；The values of "zero power lens" subtracted from the "plus-prism combination lens "were near phorias (P=0.771)、AC/A ratio (P=0.741)、accommodative lag (P=0.824)、right eye amplitude of accommodation (P=0.296)、left eye amplitude of accommodation (P=0.684)、near point of convergence(P=0.014*,R2=0.2841)、fixation disparity (P=0.637). Conclusion: Wearing the computer glasses have shown better stability of accommodation, however the higher lag of accommodation, the greater the degree of dizzy. Computer glasses helped to improve the convergence ability and reduced visual fatigue. When using the full-correct glasses, the subjects improved the near point of convergence or accommodative insufficiency, and relieved visual fatigue. Computer glasses can reduce the visual fatigue, 75% of the subjects can receive computer glasses and 50% of subjects like to computer glasses.