Visual and binocular status of down syndrome children in Malaysia

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Background: Down syndrome is a common chromosomal anomaly. Few reported studies make reference to the ocular status in Asian children with Down syndrome. The purpose of this study was to determine the visual and binocular status of a sample of Down syndrome children in Malaysia. Methods: A total of 73 Malaysian children with Down syndrome (38 boys and 35 girls) in the Kuala Lumpur area aged one to 12 years were examined. Cycloplegic refraction was performed on each eye and binocular visual acuity was assessed using the Cardiff acuity card or the LogMAR chart. Binocular functions were assessed using the cover test and Lang's stereo acuity test. Results: The mean age of the subjects was 6.01 ± 3.41 years. Refraction of the right eye showed that 10 per cent of the subjects were myopic, 20 per cent were hyperopic and 70 per cent had no significant refractive error. The mean spherical equivalent was +0.92 ± 2.32 DS for the right eye and +0.99 ± 2.21 DS for the left. The mean of binocular LogMAR VA was 0.36 ± 0.22 (6/12). Cover test revealed that 21 subjects had strabismus (of those, 33 per cent had unilateral esotropia, 52 per cent had alternating esotropia, nine per cent had unilateral exotropia and five per cent had alternating exotropia). Only 22 subjects gave clear positive response to the stereotest. Other ocular findings included ptosis (one per cent), abnormal head posture (seven per cent) and nystagmus (six per cent). Conclusion: Malaysian children with Down syndrome have a high incidence of refractive error and strabismus. Regular visual examination is important so that corrective lenses can be prescribed to improve vision and to enhance the quality of life of these children in Malaysia.

Original languageEnglish
Pages (from-to)150-154
Number of pages5
JournalClinical and Experimental Optometry
Volume89
Issue number3
DOIs
Publication statusPublished - May 2006

Fingerprint

Malaysia
Down Syndrome
Exotropia
Esotropia
Refractive Errors
Strabismus
Mydriatics
Posture
Lenses
Visual Acuity
Head
Quality of Life
Incidence

Keywords

  • Binocular functions
  • Down syndrome
  • Prevalence
  • Refractive error
  • Strabismus
  • Visual acuity

ASJC Scopus subject areas

  • Ophthalmology
  • Optometry

Cite this

Visual and binocular status of down syndrome children in Malaysia. / Mohd. Ali, Bariah; Mohammed, Zainora; Mat Daud, Norlaila; Mohamad Fadzil, Norliza; Rohani, C. J Che; Mohidin, Norhani.

In: Clinical and Experimental Optometry, Vol. 89, No. 3, 05.2006, p. 150-154.

Research output: Contribution to journalArticle

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