晶状体是构成眼的屈光系统的重要结构,其血供的缺如及自身特殊的新陈代谢,都是维持透明的重要条件。因此任何干扰房水正常成份和破坏晶体囊膜的因素,均可影响晶体上皮细胞的呼吸作用,使晶体氧化系统代谢紊乱,产生难以逆转的晶体透明度的改变。引起晶体急剧混浊的因素多是由于外伤所致。不论是锐器造成的穿通伤或钝器所造成的冲击伤。常见的眼球钝挫伤是由于 The lens is an important structure of the refractive system that forms the eye. The absence of blood supply and its own special metabolism are all important conditions for maintaining transparency. Therefore, any interference with the normal components of aqueous humor and the destruction of the lens capsule factors can affect the respiration of the lens epithelial cells, the crystal oxidation system disorders, resulting in difficult to reverse the changes in crystal transparency. Most of the factors that cause crystal opacity are due to trauma. Whether it is penetrating injuries caused by sharps or blunt impact injuries. Common eye contusion is due to