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三、外伤性白内障外伤性白内障是由于眼睛受到钝挫伤、穿孔伤、电击伤、放射线损伤或眼内异物等所引起。根据其损伤的性质和程度的不同,晶状体混浊的部位、发展速度和对视力的影响也不相同。(1)当眼球受到挫伤或严重震荡伤时,晶状体受到房水和玻璃体的双重冲击发生震荡,渗透压失调、组织受伤、变性而发生混浊。(2)眼球遭到锐器的刺伤或严重挫伤,使晶状体囊膜破裂、房水进入晶状体内,使晶状体发生混浊,破口小者可发生部分混浊,破口大时皮质吸收大量房水则晶状体迅速混浊膨胀。(3)异物穿入眼内,可停留在晶状体内或穿过晶状
Third, traumatic cataract Traumatic cataract is due to the eyes by blunt trauma, perforation injury, electric shock, radiation damage or intraocular foreign body caused. Depending on the nature and extent of the injury, the opacity of the lens, its rate of development, and its effect on vision are also different. (1) When the eyeball is bruised or severely concused, the lens is shocked by the double impact of aqueous humor and vitreous body, the imbalance of osmotic pressure, tissue injury, degeneration and turbidity occur. (2) the eye was stab wounds or serious contusion, the lens capsular rupture, aqueous humor into the lens, the lens opacity, break the small part of the turbidity can occur, large cesarean break when absorbing a large amount of aqueous humor The lens rapidly turbid expansion. (3) foreign body into the eye, can stay in the lens or through the crystalline