Supplementary Material for: Anterior Chamber Iris Claw Lens for the Treatment of Aphakia in a Patient with Megalocornea

Megalocornea in isolation is a rare congenital enlargement of the cornea greater than 13 mm in diameter. Patients with megalocornea are prone to cataract formation, crystalline lens subluxation, zonular deficiencies and dislocation of the posterior chamber intraocular lens (PCIOL) within the capsular bag. A 55-year-old male with megalocornea in isolation developed subluxation of the capsular bag and PCIOL. The PCIOL and capsular bag were explanted, and the patient was subsequently implanted with an anterior chamber iris claw lens. An anterior chamber iris claw lens is an effective option for the correction of aphakia in patients with megalocornea.

孤立性大角膜（Megalocornea）是一类罕见的先天性角膜增大病症，患者角膜直径大于13mm。此类患者易并发白内障、晶状体半脱位、悬韧带缺损，以及囊袋内后房型人工晶状体（posterior chamber intraocular lens，PCIOL）脱位。本次报道的一名55岁孤立性大角膜男性患者，即出现了囊袋与后房型人工晶状体半脱位。医师随后取出该后房型人工晶状体及囊袋，并为患者植入了前房型虹膜夹型人工晶状体。前房型虹膜夹型人工晶状体是矫正大角膜患者无晶状体眼的有效方案。