Table 3 Rate of Convergence Insufficiency and Accommodative Insufficiency for age range between 7 and 19. (CI-convergence insufficiency; AI-accommodative insufficiency)
From: Convergence insufficiency and accommodative insufficiency in children
Study (Author/year) | Country | Age range | Sample size | Prevalence CI (%) | Prevalence AI (%) | |||
|---|---|---|---|---|---|---|---|---|
Low | High | Definite | with CI | without CI | ||||
Rouse et al./1998 [7] | USA | 8–12 | 428 | 33 | 12 | 6 | – | – |
Rouse et al./1999 [9] | USA | 9–13 | 453 | 8,4 | 8,8 | 4,2 | 9,9 | 11,5 |
Borsting et al. /2003 [2] | USA | 8–15 | 392 | 10,5 | 12,7 | 4,6 | – | 10,5 |
White and Major /2004 [22] | USA | 7–19 | 129 | – | 7,75 | – | – | |
Marran 2006 [5] | USA | 11,5 ± 0,63 | 299 | – | 18 | 3,3 | 4,7 | |
Davis et al./2016 [16] | USA | 8–16 | 484 | – | 31,4 | 14,7 | 17,8 | |
Menjivar et al./2018 [18] | USA | 9–14 | 282 | – | 19,8 | 8,2 | – | |
Wajuihian and Hansraj/2016 [10] | S/Africa | 13–19 | 1211 | 11,8 | 6 | 4,3 | 1,9 | – |
Hussaindeen et al./2016 [17] | India | 7–17 | 920 | – | 16,5 | 0,2 | ||
Present study | Portugal | 10–14 | 292 | 7,2 | 4,8 | 2 | 3,1 | 6,8 |