1. SATTLER'S VEIL
2. The modern concept of scleral lens practice;Pullum;J. Brit. CL. Ass.,1984
3. Gas permeable haptic lenses;Ezekiel;J. Brit. C.L. Ass.,1983
4. Gas permeable scleral lenses;Ruben;Contact Lens J.,1985
5. Corneal swelling at low atmospheric oxygen pressures;Mandell;Invest. Ophthal.,1980