Results of primary and secondary implants using Choyce Mark VIII lenses.

The author's experiences with the Choyce Mark VIII implant have been statistically reviewed. The results reveal no significant increase in complications over standard cataract extraction without implantation. Secondary implantation is compared with primary implantation. The results seem to support the author's position that secondary implantation with the Choyce lens carries a 3-5% incidence of complications which must be weighed against the patient's need for further rehabilitation. The importance of fixation in implantation has been reviewed from an historical standpoint to support the conclusion that the Choyce lens owes much of its superior results to its ideal fixation and lack of pseudophakodonesis.