The Intraocular Implant Lens Development and Results with Special Reference to the Binkhorst Lens: Proefschrift

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Until 1-1-1972 DINKHORST inserted 170 iridocapsular lenses in 158 patients. The first operation took place on 16-9–1965*. Initially, indication for the fitting of an iridocapsular lens was congenital or traumatic cataract in children, since the e~tracapsular cataract extraction necessary at that age, facilitated iridocapsular fixation (DINKHORST, 1967ac; DINKHORST & GODIN, 1967d, 1970b, 197lb, 1972d). After 1970 MANSCHOT’s histopathological findings (see Chapter VIII) and the desire to reduce disloca tions and the development of ECD to a minimum induced DINKHORST to per form primary iridocapsular lens implant operations in cases with senile cataract as weH. This explains the decrease in the fitting or iris clip lens implants in favor ofiridocapsular lens implants (see Fig. 39). The distribution ofthe patients’ ages in these 170 cases is, therefore, quite different from that of the 677 iris clip lens implant operations (see Fig. 40). The technique ofthe iridocapsular lens implantation is described on page 59. Numerical data are shown in Fig. 41. Noteworthy in this table are the following points: 1. The average age at operation of 30.82 years which is very low compared with the 65.80 years for the iris clip lens series, may be explained by the relatively !arge nurober of children in this series (see Fig. 40).