The relationship between the age when spectacles wear initiated and refractive error changes in children with accommodative esotropia

Document Type : Original article

Authors

1 OD in Optometry, School of Rehabilitation Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran

2 Students' Research Office, MSc in Optometry, School of Rehabilitation Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran

3 Associate Professor of Ophthalmology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran

4 MSc in Biostatistics, Faculty of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

5 Strabismus Department, Farabi Eye Research Center, Tehran University of Medical Sciences, Tehran, Iran

Abstract

Background and Aim: Accommodative esotropia is the most common strabismus among children and its initial treatment is optical correction of the full refractive error. Considering the fact that emmetropization is controlled by refractive status of the eye and visual acuity, early correction of hyperopia in childhood may impede emmetropization. The purpose of the present study was to assess the relationship between age when spectacles wear initiated and refractive error changes in children with accommodative esotropia.
Materials and Method: In the present cross-sectional study, medical records of 1- to 8-year-old patients diagnosed with refractive accommodative esotropia (esotropia decreased to within 10∆ with full hyperopic correction) were reviewed and the refractive data was analyzed for 3 groups of children based on their age when spectacles wear initiated.
Results: A total of 62 patients were included in the study. The mean age when spectacles wear initiated was 2.5 years and the mean of follow-up period was 1.9 years. The relationship between age when spectacles wear initiated with changes in spherical equivalent and hyperopia was statistically significant (p<0.05), but with astigmatism it was not revealed to be significant (p>0.05). There is a negative relationship between spherical equivalent and hyperopia with the age when spectacles wear initiated.
Conclusion: The age when spectacles wear initiated is significantly correlated to the changes in spherical equivalent and hyperopia in children with accommodative esotropia. The lower the age when spectacles wear initiated, the higher the spherical equivalent and hyperopia. The possibility that full correction of hyperopia impedes emmetropization must be considered.

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Main Subjects

References

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The Scientific Journal of Rehabilitation Medicine
Volume 5, Issue 1
March and April 2016
Pages 60-67

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History

  • Receive Date: 13 July 2015
  • Revise Date: 24 August 2015
  • Accept Date: 14 October 2015
  • First Publish Date: 20 March 2016

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