OTRHO-K HAS BEEN PROVEN TO SLOW DOWN INCREASES IN MYOPIA BY MULTIPLE STUDIES

Check for myopia risk factors in your child.

What is Myopia?

Generally, a newborn’s eyeball is shorter than ideal, but its length increases with age. Under normal conditions, the length of the globe of the eye will increase to an ideal length by adulthood. With the eyeball at an ideal length, one will see well all the time, both near and also at a distance.

Unfortunately, many eyeballs simply do not grow to an ideal length by the time a child reaches adulthood. Myopia is a condition where the globe of the eye has become elongated from its ideal length. This causes light to focus at the front of the retina instead of on the retina. A person with myopia (nearsightedness) will not be able to see things clearly at a distance without wearing corrective lenses such as glasses or contact lenses.

How Ortho-K control Myopia

The globe of the eye overgrows due to both genetics and environmental factors. In the U.S., the prevalence of myopia in adults has increased from 25% in 1979 to nearly 50% in 2016 (10). In China, the prevalence of myopia in the university student population is approximately 90%. The average degree of myopia among these students is over 4.00 D according to one study done in Shanghai (17).

Effect of Myopia to your children

These alarming statistics are even more frightening if you consider the health risks of having myopia. Myopia increases the chance of developing serious eye ailments such as retinal detachment, glaucoma, cataract and other sight-threatening diseases (8). although any degree of myopia is a risk factor for future vision loss, high myopia of more than 6.00 D is associated with a very high risk of these conditions. For example, persons with more than 6.00 D of myopia have a 14.4 times greater chance of developing glaucoma (2). Those with over 8.00 D of myopia have a 7.8 times greater risk of having a retinal detachment (8). Myopia is now the second highest leading cause of visual impairment in the world.

» References

1. Anstice, Nicola S., and John R. Phillips. “Effect of Dual-Focus Soft Contact Lens Wear on Axial Myopia Progression in Children.” Ophthalmology, vol. 118, no. 6, 2011, pp. 1152–1161.
2. Chen, Sheng-Ju, et al. Current Neurology and Neuroscience Reports., U.S. National Library of Medicine, 2012
3. Chia, A., Lu, Q. and Tan, D. (2016). “Five-Year Clinical Trial on Atropine for the Treatment of Myopia 2.” Ophthalmology, 123(2), pp.391-399.
4. Cho, Pauline, et al. “The Longitudinal Orthokeratology Research in Children (LORIC) in Hong Kong: A Pilot Study on Refractive Changes and Myopic Control.” Current Eye Research, vol. 30, no. 1, 2005, pp. 71–80.
5. Chua SYL, Sabanayagam C, Cheung Y-B, et al. “Age of onset of Myopia Predicts Risk of High Myopia in Later Childhood in Myopic Singapore Children” Opthalmic Physiol Opt. 2016;36(4):388-394
6. Cui, D. Trier, K., Ribel-Madsen, S.M. “Effect of Day Length on Eye Growth, Myopia Progression, and Change of Corneal Power in Myopic Children” Ophthalmology. 2013; 120(5),1074-1079
7. Dandona, Rakhi, et al. “Population-Based Assessment of Refractive Error in India: the Andhra Pradesh Eye Disease Study.” Clinical and Experimental Ophthalmology, vol. 30, no. 2, 2002, pp. 84–93.
8. Flitcroft DI. “The Complex Interactions of Retinal, Optical, and Environmental Factors in Myopia Aetiology.” Prog Retin Eye Res. 2012; 31 (6): 622-660
9. He, Mingguang, et al. “Refractive Error and Visual Impairment in Urban Children in Southern China.” Investigative Opthalmology & Visual Science, vol. 45, no. 3, Jan. 2004, p. 793.
10. Holden, Brien. “The Impact of Myopia and High Myopia.” World Health Organization, 16 Mar. 2015.
11. Kinoshita, Nozomi, et al. “Additive Effects of Orthokeratology and Atropine 0.01% Ophthalmic Solution in Slowing Axial Elongation in Children with Myopia: First Year Results.” Japanese Journal of Ophthalmologyvol. 62, no. 5, Apr. 2018, pp. 544–553.
12. Kothari, Mihir, and Vivek Rathod. “Efficacy of 1% Atropine Eye Drops in Retarding Progressive Axial Myopia in Indian Eyes.” Indian Journal of Ophthalmology, vol. 65, no. 11, 2017, p. 1178.
13. Liu, Y M, and P Xie. “The Safety of Orthokeratology–A Systematic Review.” Current Neurology and Neuroscience Reports., U.S. National Library of Medicine, Jan. 2016
14. Murthy et al “The Prevalence of Uncorrected Refractive Error in Urban, Suburban, Exurban and Rural Primary School Children in Indonesian Population.” International Journal of Ophthalmology, 2017
15. Racella R, McLellan J, Grice K, Del Bono EA, Wiggs JL, Gwiazda JE. “Role of Genetic Factors in the Etiology of Juvenile-Onset Myopia on a Longitudinal Study of Refractive Error.” Optom Vis Sci. 1999;76(6):381-386
16. Rose KA, Morgan IG, Smith W, Burlutsky G, Mitchell P, Saw S-M. “Myopia in Children.” Ophthalmology. 2008;115(8): 1279-1285
17. Sun, Jing, et al. “High Prevalence of Myopia and High Myopia in 5060 Chinese University Students in Shanghai.” Investigative Ophthalmology & Visual Science, The Association for Research in Vision and Ophthalmology, 1 Nov. 2012
18. Sun, Yuan, et al. “Correction: Orthokeratology to Control Myopia Progression: A Meta-Analysis.” Plos Onevol. 10, no. 6, Nov. 2015
19. Tkatchenko, Andrei V., et al. “APLP2 Regulates Refractive Error and Myopia Development in Mice and Humans.” PLOS Genetics, vol. 11, no. 8, 2015
20. Vitale, S. (2009). “Increased Prevalence of Myopia in the United States Between 1971-1972 and 1999- 2004.” Archives of Ophthalmology, 127(12), p.1632.
21. Zhao, Hai-Lan, et al “Role of Short-Wavelength Filtering Lenses in Delaying Myopia Progression and Amelioration of Asthenopia in Juveniles.” International Journal of Ophthalmology, 2017

Testimonials

- OUR CLIENTS LOVE US! READ WHAT THEY HAVE TO SAY -