Association between Vitamin D and Ocular Lens...

Association between Vitamin D and Ocular Lens Thickness in Myopic Eyes

Author Name : Fadhilah Nisa Tanjung, Aryani Atiyatul Amra, Masitha Dewi Sari

ABSTRACT

Background: Myopia is one of common refractive error in population. Many studies reported that outdoor light exposure may prevent myopia progression by slowing down ocular elongation. Vitamin D level is a measurable biomarker of sunlight exposure. Lens thickness is one of measurement of ocular biometry tha can affect individual  refractive status. Objective: To determine the association between vitamin D and lens thickness also compare vitamin D level among various myopic degree.Method: This study cross sectional study associate vitamin D level to lens thickness in myopic eyes. Vitamin D level was measured from vein blood samples. Lens thickness was measured using A-scan ultrasound biometry. Myopic degree was classified as mild, moderate and high myopia based on subjective refraction. Result: Total 50  myopic patients consisted of 29 mild, 15 moderate and 6 high myopic patients. Vitamin D level was not significantly different between myopia degrees (p = 0,255). Vitamin D level also did not correlate to lens thickness (p = 0.278). Conclusion: Vitamin D did not significantly different among myopia degree and did not correlate to lens thickness, therefore vitamin D may have not protective effect against myopia.

Keywords: myopia, lens thickness, refractive error, vitamin D