Schachat, W.S. , et al.: Ophthalmologic findings in children with cerebral palsy. Pediatrics19: 623, 1957.
5.
Guibor, G.P. : Some eye defects seen in cerebral palsy, with some statistics. Am. J. Phys. Med.32: 342, 1953.
6.
Douglas, A.A. : The eyes and vision in infantile cerebral palsy . Trans. Ophthalmol. Soc. UK80: 311, 1960.
7.
Asher, P., and Schonell, F.E.: A survey of 400 cases of cerebral palsy in childhood. Arch. Dis. Child.25: 360, 1950.
8.
Landau, L., and Berson, D.: Cerebral palsy and mental retardation: Ocular findings. J. Pediatr. Ophthalmol. 8: 245, 1971.
9.
Smith, V.H.: Visual disorders and cerebral palsy. Little club clinics in developmental medicine no. 9. The National Spastics Society Medical Education and Information Unit in Association withWilliam Heinemann Medical Books Ltd., London, 1963.