1. The 3M diffractive bifocal intraocular lens;Futhey,1988
2. Clinical results of the multifocal lens;Keats;J. Cataract Refract. Surg.,1987
3. Treatment of uniocular aphakia;Percival;Br. J. Ophthalmol.,1976
4. Planned myopic astigmatism as a substitute for accommodation in pseudophakia;Huber;Am. Intraoc. Implant Soc. J.,1981