Schoolchildren (735) between the ages of 7 and 14 were examined for convergence ability. Nine percent had an objective near point of convergence of more than 10 cm and 10% had a subjective near point of convergence of more than 10 cm. The recovery point was greater than 15 cm for 9% of the subjects when measured objectively and 12% subjectively. The sample was analyzed with regard to age, sex, and IQ. There was no significant difference between children who showed convergence insufficiency and those who did not with regard to school results in their mother tongue and in their grade point average.
Read before the Section on Binocular Vision and Perception at the Annual Meeting of the American Academy of Optometry, Birmingham, December 13, 1977.
* Psychologist, Ph.D., Member of Faculty, F.A.A.O.
†Optometrist, L.Sc.O., Member of Faculty.
Jacques E. Létourneau
Université de Montréal
Case postale 6128
© 1979 American Academy of Optometry