Chronic and toxic can have ball backsight neuritis, inspect dish of oedema, retinal hemal convulsion, haemorrhage, oozy, eye shot is short of caustic and centrality stricture.

慢性中毒可有球后视神经炎，视盘水肿，视膜血管痉挛、出血、渗出，视野缺损和向心性狭窄。

Serious examination, art is medium before the element that decides force of embedded art backsight restores artificial crystal includes method careful operation, art hind is attentive nurse.

决人工晶体植入术后视力恢复因素包括术前认真检查、术中仔细操作、术后细心护理。