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Spontaneous in vivo fracture of an anterior chamber intraocular lens loop. Case report.

To the Editor. —There has been concern that anterior chamber (AC) water, Fla) AC IOL 4 days later. During explantation, the intact loop had to be severed to facilitate removal because the distal portions of both loops were encapsulated in peripheral synechiae. Four weeks after this procedure, the patient's visual acuity was 20/25. The explanted IOL was examined grossly (Fig 1), and scanning electron microscopy clearly demonstrated the sheared appearance characteristic of a fracture in the superonasal loop when compared with the surgically severed loop (Fig 2). Comment. —Although traumatic fracture of AC IOL footplates has been reported,2in vivo fracture of an IOL loop or haptic not attributable to overt head or ocular trauma is very uncommon. The first such case, reported by Maguen and associates' in 1985, detailed the loop fracture of a Kelman Quadriflex AC IOL. The second case, reported by Park and coauthors3