1. Barraquer, J.: XVIIIth Internat. Cong. Ophth., Brussels, 1958.
2. Barraquer, J.: Discussion of Maria et al., 1958.
3. Ridley’s Intraocular Lens Prothesis
4. Binkhorst, C. D.: Discussion of Strampelli, XVIIIth Internat. Cong. Ophth., Brussels, 1958.