References
- Simons K: Visual acuity norms in young children. Suru Ophthalmol 1983; 28:84–92.
- Allen HF: A new picture series for preschool vision testing. Am J Ophthalmol 1957; 44:38–41.
- Mayer DL, Gross RD: Modified Allen pictures to assess amblyopia in young children. Ophthalmology 1990; 97:827–832.
- Cibis GH, Maino JH, Crandall MA, Cress P, Spellman CR, Shores RE: The Parsons visual acuity test for screening children 18 to 48 months old. Ann Ophthalmol 1985; 17:471–478.
- Kay H: New method of assessing visual acuity with pictures. Br J Ophthalmol 1983; 67:131–133.