晶状体后圆锥是晶状体后表面呈球形或锥形向玻璃体腔方向的膨隆 ,是一种非常少见的眼结构发育异常[1 ] ,其发生常与遗传因素有关[1 - 6 ] 。然而 ,手术后继发的晶状体后圆锥尚未见报道。我们遇到 2例玻璃体切割联合硅油填充术后发生的晶状体后圆锥的患者 ,现报道如下。例 1　男 The posterior lens cone is a bulbous or pyramidal posterior lens bulging toward the vitreous cavity. It is a very rare eye structure dysplasia [1], and its occurrence is often associated with genetic factors [1-6]. However, posterior lens cones have not been reported. We encountered two cases of vitrectomy combined with silicone oil filled after the occurrence of posterior lens cone patients are reported below. Example 1 male