1. Classification of amblyopia;von Noorden;Am. J. Ophthalmol.,1967
2. Ophthalmic Optics and Refraction;Duke-Elder,1970
3. Diagnosis of visual defect in early childhood;Sheridan;Br. Orthopt. J.,1963
4. A classification of retrolental fibroplasia;Reese;Am. J. Ophthalmol.,1953
5. A study of separation difficulty. Its relationship to visual acuity in normal and amblyopic eyes;Stuart;Am. J. Ophthalmol.,1962