HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

Effect of undercorrection on myopia progression in 12-year-old children.

AbstractBACKGROUND:
To prospectively observe the effects of undercorrection of myopia on myopia progression and axial elongation in a population of 12-year-old Chinese children.
METHODS:
A total of 2,267 children in the Anyang Childhood Eye Study were examined at baseline, and 1,769 were followed for 1 year. Ocular examinations included cycloplegic autorefraction, axial length, visual acuity, vertometry, and accommodative lag. Questionnaires were completed by children and parents. Undercorrection of myopia was determined at baseline if presenting visual acuity could be improved by at least 2 lines with subjective refraction.
RESULTS:
Of 253 myopic children with spectacles and available information, 120 (47.4 %) were undercorrected (-4.63D  to -0.50D) and 133 (52.6 %) were fully corrected. In a multivariate model adjusting for age, gender, number of myopic parents, time spent on near work and outdoor activities per day, usage and time for wearing spectacles per day, children with undercorrection had significantly more baseline myopia (P < 0.01) and longer axial length (P = 0.03) than children with full correction. However, there were no significant differences in myopia progression (P = 0.46) and axial elongation (P = 0.96) at 1 year between the two groups of children. The regression analysis showed that myopia progression significantly decreased with increasing amount of undercorrection (r (2) = 0.02, P = 0.02) in all children. Accommodative lag significantly decreased with increasing amounts of undercorrection (P < 0.01).
CONCLUSIONS:
Based on this 1-year study in Chinese children, undercorrection or full correction of myopia by wearing spectacles did not show any differences in myopia progression or axial elongation.
AuthorsSi Yuan Li, Shi-Ming Li, Yue Hua Zhou, Luo Ru Liu, He Li, Meng Tian Kang, Si Yan Zhan, Ningli Wang, Michel Millodot
JournalGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie (Graefes Arch Clin Exp Ophthalmol) Vol. 253 Issue 8 Pg. 1363-8 (Aug 2015) ISSN: 1435-702X [Electronic] Germany
PMID26032395 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Topics
  • Accommodation, Ocular (physiology)
  • Asian People
  • Axial Length, Eye (pathology)
  • Child
  • China (epidemiology)
  • Disease Progression
  • Eyeglasses
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Myopia (diagnosis, ethnology, therapy)
  • Prospective Studies
  • Surveys and Questionnaires
  • Visual Acuity (physiology)

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: