New design in anterior chamber lenses.

MoiE and more attention is being paid to the question of intra-ocular acrylic implants since Ridley's original venture into this field. More recently, interest has changed from Ridley's original idea of an acrylic lens replacing the extracted lens in position behind the pupil to the anterior chamber implant. It is possible that this has happened because of the greater ease of insertion of the anterior chamber lenticulus and the fact that it is easier to take such a lens out should anything go wrong; furthermore, the anterior chamber lens has the great advantage over Ridley's lens of being capable of insertion after an intra-capsular operation or a cataract extraction with full iridectomy or both. The best known of the anterior chamber lenses in use at present is the Strampelli lens, which is made entirely in plastic; the shape being approximately as shown in Fig. 1.