眼内异物伤较一般的眼球穿通伤有更大的危险性。异物进入眼球时所引起的机械性损伤可能已甚为严重,而由于异物存留又增加了眼内感染的危险,也增加了发生交感性眼炎的可能性。异物的长期存留常引起眼内组织的刺激,可因而发生虹膜睫体炎、玻璃体机化,甚至发生增殖性玻璃体视网膜病变 Intraocular foreign body injuries than the average penetrating eye injury have a greater risk. Mechanical damage caused by foreign bodies entering the eye may have been severe, but the risk of intraocular infections is increased by the presence of foreign bodies, increasing the likelihood of sympathetic ophthalmia. Long-term retention of foreign bodies often cause irritation of intraocular tissue, which may occur iridocyclitis, vitrification, and even proliferative vitreoretinopathy