Table 1. Clinical features of affected subjects with primary and non-syndromic strabismus and unaffected subjects in families.

	Affected (%)	Unaffected (%)
The number of individuals	108 (52.9%)	96 (47.1%)
Male	45 (53.6%)	39 (46.4%)
Female	63 (52.5%)	57 (47.5%)
The number of families	55 (94.8%)	3 (5.2%)
Exotropia	22
Esotropia	25
Mixed phenotypes (exotropia and esotropia)	8
The number of individuals	108 (52.9%)	96 (47.1%)
Exotropia	52
Intermittent exotropia	44
Constant exotropia	8
Esotropia	56
Infantile esotropia	33
Accommodative or partially accommodative esotropia	14
Microtropia (Microesotropia)	3
Unclassified strabismus	6