Mohney BG, et al. - Researchers conducted the study for reporting the prevalence of subclinical markers of strabismus from a community-based screening of children. Family history and ophthalmic examination (involving six markers of strabismus: oblique muscle dysfunction, stereopsis < 60 arcsec, monofixation, nasal-temporal pursuit asymmetry, dissociated strabismus, and anisometropia) were collected from consecutive children, aged 5-18 years, in the local school system and the pediatric outpatient clinic of Mayo Clinic, Rochester, Minnesota. In total, 1,000 children (498 males [49.8%]) were examined at a mean age of 10.6 years (range, 5-18.98). Subclinical binocular vision disorders occurred in 10% -13% of children without strabismus in this community-based screening, with inferior oblique muscle dysfunction, anisometropia, and subnormal stereopsis being the most common. Identifying these disorders in strabismic families could help to solve the genetic puzzle of childhood strabismus.