This paper intraduces a long period observation on 38 cases (32 eyes) after extraction of magretie foreign body is retained in vitreous cody, the time of follow-up was 11/2-1 years.

• 本文对38例玻璃体内磁性异物摘出后的患者进行远期随访观察,最长12年,最短1年半。