Title: Etiology and Prevalence of Amblyopia in Eastern India

Author: Raktima Baksi (Mandal)

 DOI: https://dx.doi.org/10.18535/jmscr/v7i12.106

Abstract

Background: Amblyopia is when vision in one or both eyes does not develop properly during childhood. It is sometimes called lazy eye. Amblyopia is a common problem in babies and young children.

Material and Methods: A total of 5050 school children aged between 5 and 15years were screened in a population based cross sectional study.

Result: Out of 5000 patients, 50 were lost to follow up. Eventually our sample size reduced to 5000 patients.

Conclusion: In this study, the prevalence of amblyopia was 1.1% of the school children. Ametropia and anisometropia were the most common causes of amblyopia. We did not face any significant difference in amblyopia prevalence between rural and urban school children.

Keywords: Amblyopia, cross-sectional study, school children.

References

  1. Kalikiyavi V, Naduvilath TJ, Bansal AK, Dandona L. Visual impairment in school children in South India.Indian J Ophthalmol. 1997;45:129–34.   
  2. Thompson JR, Woodruff G, Hiscox FA, Strong N, Minshull C. The incidence and prevalence of amblyopia detected in childhood.Public Health. 1991;105:455–62.
  3. Woodruff G, Hiscox FA, Thompson JR, Smith LK. Factors affecting the outcome of children treated for amblyopia.1994; 8:627–31. 
  4. Rahi JS, Sripathi S, Gilbert CE, Foster A. Childhood blindness in India: causes in 1318 blind school children in 9 states.1995;9:545–50. 
  5. Murthy GV, Gupta SK, Ellwein LB, Munoz SR, Pokharel GP, Sanga L, et al. Refractive error in an urban population in New Delhi.Invest Oph Vis Sci. 2002;43:623–31.
  6. Anjaneyulu K, Narendranath Reddy G. Prevalence of Amblyopia in Children Aged from 5-15 Years in Rural Population Kurnool Dist. Andhra Pradesh, India.2015;4:99–100.
  7. Chia A, Lin XY, Dirani M, Gazzard G. Risk factors for strabismus and Amblyopia in young Singapore Chinese Children.  Ophthalmic Epidemiology. 2013;20(3):138–47.
  8. Fu J, Li SM, Liu LR, Li JL. Prevalence of amblyopia and strabismus in a population of 7th-grade junior high school students in central china: The Anyang Childhood Eye Study (ACES) Ophthalmic Epidemiology. 2014;21(3):197–203.
  9. Sapkota K, et al. Prevalance of amblyopia and pattern of refractive error.Nepal ophthalmol. 2013;5(9):38–44.
  10. Bhandari G, Byanju R, Kandel PR. Prevalance and profile of Amblyopia in children at Bharatpur eye hospital.Ann Paediatric and child health. 2015;3(8):1085. 
  11. Murthy GV, Gupta SK, Ellwein LB, Munoz SR, Pokharel GP, Sanga L, et al. Refractive error in an urban population in New Delhi.Invest Oph Vis Sci. 2002;43:623–31. 
  12. Anjaneyulu K, Narendranath Reddy G. Prevalence of Amblyopia in Children Aged from 5-15 Years in Rural Population Kurnool Dist. Andhra Pradesh, India.2015;4:99–100.
  13. Lee CE, Lee YC, Lee SY. Factors influencing the prevalence of amblyopia in children with anisometropia.Korean J Ophthalmol. 2010;24:225–29.
  14. Park K, Park DY. Analysis of spectral domain optical coherence tomography measurements in amblyopia, a pilot study.Br J ophthalmol. 2011;95:1700–06.
  15. Menon V, Chaudhuri Z, Saxena R, Gill K, Sachdev MM. Profile of amblyopia in hospital referral practice.Indian J Ophthalmol. 2005;53:227–34. 
  16. Chung W, Hong S, Lee JB, Han SH. Pattern Visual evoked potential as a predictor of occlusion therapy for amblyopia.Korean J Ophthalmol. 2008;22:251–54.
  17. Helveston EM. Relationship between degree of anisometropia and depth of amblyopia. Am J Ophthalmol. 1996;62:757–61.
  18. Kivlin JD, Flynn JT. Therapy of anisometropic amblyopia.J Paediatric Ophthalmol Strabismus. 1981;18:47–56.
  19. Kutschke PJ, Scott WE, Keech RV. Anisometropic amblyopia. 1991;98(2):258–63.
  20. Sen DK. Anisometropic amblyopia.J Paediatric Ophthalmol Strabismus. 1980;17(3):180–84.
  21. Abrahmsson M, Sjostrand J. Natural history of infantile anisometropia.Br J Ophthalmol. 1996;80:860–63.
  22. Townsend AM, Holmes JM, Evans LS. Depth of anisomteropic amblyopia and difference in refraction.Am J Ophtalmol. 1993;116:431–36. 
  23. Dandona R, Dandona L, Srinivas M, Giridhar P, Nutheti R, Rao GN. Planning Low Vision Services in India: A Population based  Ophthalmology. 2002; 109:1871–78. 
  24. Murthy GV, Gupta SK, Bachani D, Jose R, John N. Current estimates of blindness in India.Br J Ophthalmol. 2005;89:257–60.
  25. Khan SA, Shamanna B, Nuthethi R. Perceived barriers to the provision of low vision services among ophthalmologists in India.Indian J Ophthalmol. 2005;53:69–75.
  26. Ponte F, Giuffre G, Giammanco R. Prevalence and causes of blindness and low vision in the Casteldaccia Eye Study. Graefe’s Arch Clin Exp Ophthalmol. 1994;232:469–72.
  27. Wang JJ, Foran S, Mitchell P. Age specific prevalence and causes of bilateral and unilateral visual impairment in older Australians: The Blue Mountains Eye Study. Clin Exp Ophthal. 2000;28:268–73.
  28. Quah BL, Tay MT, Chew ST, Lee LK. A study of amblyopia in 18-19-year-old males.Singapore Med J. 1991;32:126–29.
  29. Von Noorden GK. Factors involved in the production of amblyopia.Br J Oph. 1974;58:158–64.
  30. Harwerth RS, Smith EL, Duncan GC, Crawford ML, Von Noorden GK. Multiple sensitive periods in the development of the primate visual system. 1986; 232:235–8.
  31. Ophthalmology Preslan MV, Novak A. Baltimore Vision screening project. Phase 2. 1998;105:150–53.

Corresponding Author

Raktima Baksi (Mandal)

RMO-CT (Tutor), Dept. of Ophthalmology, Rampurhat Government Medical College, Birbhum