1. The control of astigmatism after surgery and trauma;Roper-Hall, M.J.;Br J Ophthalmol,1982
2. Surgical correction of myopia and astigmatism;Fyodorov, S.,1980
3. Microsurgical control of corneal astigmatism in cataract and keratoplasty;Troutman, R.C.;Trans Am Acad Ophthalmol Otolaryngol,1973
4. Control of postoperativc astigmatism;Atkins, A.D.; Roper-Hall, M.J.;Br J Ophthalmol,1985