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目的 :研究眼罩遮盖的鸡形觉剥夺眼眼球形态及屈光状态随不同遮盖、去遮盖时间的变化。方法 :5 5只雏鸡行单眼眼罩遮盖 ,于不同遮盖时及去遮盖时期行双眼散瞳验光及眼球径测量。结果 :眼罩遮盖造成遮盖眼形成近视 ,眼球各径线增长 ,以前后径变化最为明显 ,双眼屈光度及眼轴差异随遮盖时间延长而更加明显 ;去除遮盖后原遮盖眼近视逐渐恢复 ,双眼各径线差异逐渐缩小。结论 :遮盖 (形觉剥夺 )可使幼小动物眼形成近视 ,眼轴延长是近视的主要原因 ;在动物发育成熟以前去除遮盖 ,形觉剥夺性近视是可逆的
OBJECTIVE: To study the morphological and refractive state of eye-shaped deprived eye in a hid-covered chicken with different cover to cover the change of time. Methods: Fifty-five chickens were covered with monocular blinkers, and underwent double-mydriasis optometry and ocular diameter measurement during different occlusion and de-occlusion periods. Results: The occlusion of the eye mask caused the myopia of the occlusion eye and the diameter of the eyeball increased. The changes of anterior and posterior diameters were the most obvious. The diopter and axial difference of both eyes were more obvious with the prolongation of the occlusion time. Line difference is gradually reduced. CONCLUSION: Masked (form deprivation) can make young animals form myopia, the axial length is the main reason for myopia; the animal is matured to remove the cover, form-deprivation myopia is reversible