eyes not aligning when looking at something

Strabismus is a condition in which the eyes do not line up with each other when looking at an object.[2]

Other namesHeterotropia, crossed eyes, squint[1]
A person with exotropia, an outward deviated eye
SymptomsNonaligned eyes[2]
ComplicationsAmblyopia, double vision[3]
TypesEsotropia (eyes crossed); exotropia (eyes diverge); hypertropia (eyes vertically misaligned)[3]
CausesMuscle dysfunction, farsightedness, problems in the brain, trauma, infections[3]
Risk factorsPremature birth, cerebral palsy, family history[3]
Diagnostic methodObserving light reflected from the pupil[3]
Differential diagnosisCranial nerve disease[3]
TreatmentGlasses, surgery[3]
Frequency~2% (children)[3]

References change

  1. 1.0 1.1 "Strabismus noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary". Archived from the original on August 1, 2017. Retrieved August 1, 2017.
  2. 2.0 2.1 "Visual Processing: Strabismus". National Eye Institute. National Institutes of Health. June 16, 2010. Archived from the original on October 5, 2016. Retrieved October 2, 2016.
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Gunton KB, Wasserman BN, DeBenedictis C (September 2015). "Strabismus". Primary Care. 42 (3): 393–407. doi:10.1016/j.pop.2015.05.006. PMID 26319345.