| 目的：了解视力低常的远视儿童经常规遮盖法治疗后屈光状态的变化特点及影响因素。方法：对170例远视儿童予以配镜并常规遮盖治疗，随访1～9年，对比其视力及屈光度的变化情况。结果：矫正视力提高，等效球镜度降低，均有统计学意义，两者左右眼对比有统计学差异。治疗前后远视程度的变化无明显差异（P=0.415），弱视程度的变化有显著差异。治疗后左眼是否弱视与治疗前左眼的弱视程度、有无偏心注视、疗程、双眼视力差、是否有融合功能等因素有关；而右眼是否弱视与治疗前右眼的弱视程度、视力高低、疗程及治疗前后的球镜度、等效球镜度等因素相关。结论：弱视儿童采用完全遮盖疗法后可促进远视屈光度及弱视程度下降。影响弱视转归的关键因素在于治疗前弱视的程度、疗程，以及是否单眼偏心注视而导致双眼差别太大等，弱视治疗应强调促进双眼的平衡发展。
Abstract Object: To examine the refractive improvement of hypermetropic children who had received rutine occlusion therapy. Methods: 170 hypermetropic children were prescripted by wearing glass and rutine occlusion therapy. After 1~9 years followed-up, we gained the refractive and visual acuty change as followed. Results: There were significant increase in visual acuty and decrease one in spherical equivalent, and a great difference between both eyes. The degree of the hypermetropic didn’t change much during the therapy(P=0.415), instead , the degree of amblyopia improved greatly. There were different factors influenced on whether the unilateral eye was amblyopic or not. To the left eye, the factors included--- the degree of the amblyopia ,eccentral fixation ,course ,different visual aculty of both eyes, and confluence ,etc. To the right one , the degree of the amblyopia ,visual aculty, course, spherical equivalent and spherical diopter were allocated. Conclusion : Rutine occlusion therapy can help emmetropisation and improve the degree of amblyopia. The main influence factors were the degree of amblyopia before therapy, course, and eccentral fixation which result in a large difference between two eyes. When treating a amblyopia, we should pay more attention to balance the visual function of both eyes. |
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