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Refractive errors and strabismus in Down's syndrome in Korea.

Dae Heon Han1, Kyun Hyung Kim, Hae Jung Paik

  • 1Department of Ophthalmology, Gachon University Gil Medical Center, Incheon, Korea.

Korean Journal of Ophthalmology : KJO
|December 4, 2012
PubMed
Summary

Strabismus and refractive errors are common in Korean patients with Down syndrome. Esotropia, often linked to hypermetropia and accommodation issues, was more prevalent than exotropia.

Keywords:
Down syndromeKoreaRefractive errorsStrabismus

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Area of Science:

  • Ophthalmology
  • Genetics
  • Pediatric Medicine

Background:

  • Down syndrome is associated with various health complications, including ocular abnormalities.
  • Understanding the specific patterns of refractive errors and strabismus in this population is crucial for timely intervention.

Purpose of the Study:

  • To investigate the prevalence and types of refractive errors and strabismus in Korean patients diagnosed with Down syndrome.
  • To identify clinical characteristics associated with these ocular conditions.

Main Methods:

  • A cross-sectional study involving 41 Korean patients with Down syndrome.
  • Screening for strabismus and assessment of refractive errors, including hypermetropia, myopia, and astigmatism.

Main Results:

  • Strabismus was present in 43.9% of patients, with esotropia (23.4%) being more common than exotropia.
  • Hypermetropia (36.6%) was more frequent than myopia (48.8%). Patients with esotropia showed significant hyperopic errors and accommodation weakness.
  • Astigmatism was observed in 63.4% of patients, with clinically significant anisometropia in 14.6%.

Conclusions:

  • Esotropia and hypermetropia are prevalent in Korean patients with Down syndrome.
  • Hypermetropia and accommodation weakness may contribute to esotropia development in this cohort.
  • Routine eye examinations should include accommodation assessment and consider bifocals for under-accommodation.