References
- Donders FC: On the Anomalies of Accommodation and Refraction of the Eye. London: The New Sydenham Society, 1864, pp 291–298.
- Michaels DD: Visual Optics and Refraction. St Louis: CV Mosby Co, 1975, p 319.
- Rabb EL: Useful extensions of common strabismus tests: The combined Worth four-dot flashlight. Am Orthopt J 22:47–53, 1972.
- Knapp P: The clinical management of accommodative esotropia. Am Orthopt J 17:8–13, 1967.
- Flynn JT, Grundmann S, Mashikian M: Binocular suppression scotoma: Its role in phorias and intermittent tropias. Am Orthopt J 20:54–67, 1970.
- Walraven F: Walraven bar separator techniques in relation to single binocular vision. Am Orthopt J 5:65–73, 1955.
- Tibbs A: Two new optical instruments: Binocular trainer and physiologic diplopia reader. Am Orthopt J 10:69–79, 1960.