1. Visual results after penetrating keratoplasty for aphakic bullous keratopathy and Fuchs' dystrophy;Olson;Am J Ophthalmol,1979
2. Aphakic keratoplasty. Visual acuity and optical errors;Olson;Ophthalmology,1980
3. Keratoplasty;DeVoe;Past, present and future. Arch Ophthalmol,1961
4. Considerations affecting technique and results in keratoplasty;Thomas;Trans Ophthalmol Soc UK,1955