Higher spherical equivalent refractive errors is associated with slower axial elongation wearing orthokeratology

Cont Lens Anterior Eye. 2016 Feb;39(1):62-6. doi: 10.1016/j.clae.2015.07.006. Epub 2015 Aug 4.

Abstract

Purpose: To investigate the relationship between axial length (AL) increase and baseline spherical equivalent refractive errors (SER) in myopic children wearing orthokeratology contact lenses (OK).

Methods: One hundred fifteen Chinese (115 right eyes) children wearing OK were enrolled in this cohort study. Gender, age, baseline SER, corneal power, corneal astigmatism, and AL at baseline and 2 years after wearing OK were collected. Univariate analysis and trend test were used to estimate the relationship between change in AL and baseline SER.

Results: After univariate analysis, a statistically significant relationship was found between change in AL and baseline SER (β=0.061, 95% CI: 0.015-0.111, P=0.015). In the trend test, after adjusting for potential confounders, higher SER was associated with smaller increases in AL (P trend=0.041).

Conclusions: The SER at baseline was associated with AL growth in myopic children wearing OK. The higher SER was associated with slower AL growth and control the development of myopia.

Keywords: Axial length; Myopia control; Orthokeratology; Spherical equivalent refractive errors.

MeSH terms

  • Adolescent
  • Astigmatism / diagnosis*
  • Astigmatism / physiopathology
  • Astigmatism / therapy
  • Axial Length, Eye*
  • Child
  • Contact Lenses*
  • Corneal Topography
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Myopia / diagnosis*
  • Myopia / physiopathology
  • Myopia / therapy
  • Orthokeratologic Procedures / methods*
  • Refraction, Ocular / physiology*
  • Retrospective Studies