Myopia controlMyopia in HK
Causes of myopia
Daily disposable CL
There are several ways to control the progression of myopia.
Animal studied showed that working under dim environment would increase the chance of having myopia. Thus, it is important to provide enough lighting for children. We suggest that the intensity of illumination should be at around 400lux.
Studies showed that children who spend less than 5 hours per week on outdoor activities, 60% will finally get myopic. Therefore, parents arrange some outdoor actives for their children, better 1 to 2 hours a day. It is beneficial to their general health as well as their eyes health.
Myopic control optical aids
Fortunately, the following is some myopic control optical aids are proved to be effective and safe in controlling myopic progression.
- Daily disposable SOFT contact lens for myopic control
- Spectacles lenses for myopic control
Control myopia by medicine
Several studies show that atropine, a powerful toxic medicine for eye examination, can be used to slow down myopic progression. However, complications of using atropine are as following:
- Allergic conjunctivitis and blepharitis
- Sensitive to light
- Blur near vision
- Eye pain
- Having red rash on skin
- Month and skin dryness
- Lack of accommodation to near objects, lead to having presbyopia earlier than normal
- Increase the chance of having UV light related eye’s problems and degeneration such as cataract and other retinal disease.
We suggest atropine only for children fail other control methods.
Jeremy A. Guggenheim, Kate Northstone, George McMahon, Andy R. Ness, Kevin Deere, Calum Mattocks, Beate St Pourcain, Cathy Williams. (2012) Time Outdoors and Physical Activity as Predictors of Incident Myopia in Childhood: A Prospective Cohort Study. (ABSTRACT) Ivestigative Ophthalmology & Visual Science VOL 53 no. 6 PG doi: 10.1167/iovs.11-9091
Justin C. Sherwin, MBBS, Mark H. Reacher, MD, Ruth H. Keogh, Anthony P. Khawaja, MBBS, MPhil, David A. Mackey, MD, Paul J. Foster, PhD. (2012) The Association between Time Spent Outdoors and Myopia in Children and Adolescents: A Systematic Review and Meta-analysis. (ABSTRACT)Ophthalmology published online 20 July 2012 DOI: 10.1016/j.ophtha.2012.04.020
Yuval Cohen, Michael Belkin, Oren Yehezkel, Arieh S. Solomon, Uri Polat. (2010) Dependency between light intensity and refractive development under light-dark cycles. (FULL TEXT) Exp Eye Res January 2011, pp 40-46; doi:10.1016/j.exer.2010.10.012
Earl L. Smith III, Li-Fang Hung and Juan Huang. (2012) Protective Effects of High Ambient Lighting on the Development of Form-Deprivation Myopia in Rhesus Monkeys. (ABSTRACT) Ivestigative Ophthalmology & Visual Science January 25, 2012 vol. 53 no. 1 p. 421-428 doi 10.1167/iovs.11-865
Y-T Fang, Y-J Chou, C Pu, P-J Lin, T-L Liu, N Huang and P Chou. (2013) Prescription of atropine eye drops among children diagnosed with myopia in Taiwan from 2000 to 2007: a nationwide study.(ABSTRACT) Eye 4 January 2013 doi:10.1038/eye.2012.279