Brit . J . Ophthal . ( 1975 ) 59 , 99 Long - term results of the Choyce anterior chamber lens implants Marks V , VII , and VIII

This paper continues the assessment of the long-term merits and problems of intraocular acrylic lenses which was started by a consideration of the value of the Binkhorst iris clip lens in aphakia by Pearce (I972). The reduced degree of aniseikonia and the better opportunity for binocular vision when uniocular aphakia is corrected by an intraocular lens implant was emphasized by Girard, Friedman, Moore, Blau, Binkhorst, and Gobin (I962) and the rather high failure rate of contact lens use in aphakia has been reported by Bonnet, Massin, and Gerhard (I966), Martin Walker (quoted by Davies and Panter, I968), and Mills and Lewis (I97i). Ruben (97I), in considering soft contact lenses, noted that in adult aphakics tolerance of reduced optic lenses is very good, but management, especially in lens removal, often proves difficult. Kelly and Butler (1971), in their series of cases of non-traumatic bilateral cataract using the offset contact lens, found 20 per cent. of patients unable to wear the contact lens. Stanworth (1972), in his series of 2I unilateral aphakic patients, found that five had abandoned or almost abandoned wear of their perilimbal contact lens after some years' wear. Despite the advantages of successful intraocular acrylic lens implantation in aphakia, fear of long-term complication has denied the procedure universal acceptance. Barraquer (1970) stated that, because of various complications, he had removed some 200 out of400 anterior chamber lenses. Choyce (I964) summarized the theoretical dangers to the eye after anterior chamber lens implantation