Myopia is reaching epidemic levels in some parts of the world1-8.
Myopia Has Been Steadily Increasing in Prevalence:1-8
- Over 30% prevalence in the United States and Europe with U.S. prevalence almost doubling in 30 years
- 80%-90% prevalence across Asia
Long-term Implications Are Clear:1-8
- Myopia increases the risk of ocular diseases such as cataracts, glaucoma, choroidal retinal degeneration, retinal detachment and potentially, blindness
- Emotional stress of children and parents as the prescription continues to increase
The VTI Multifocal lens design has been shown to impact three known visual risk factors for myopia:
- Lag of accommodation
- Amplitude of accommodation
- Peripheral hyperopia
Key Study Findings:9-15
- Animal (chick) data achieved 100% suppression of myopic development up to -10.00D.
- Human pilot data indicated excellent vision at all distances, the lenses were likely to be worn without issue by children, and decreased accommodative and peripheral hyperopic visual risk factors.
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References: 1. Vitale S, Sperduto R, Ferris F. Increased Prevalence Of Myopia In The United States Between 1971-1972 and 1999-2004. Archives of Ophthalmology. 2009;127(12);1632-1639. 2. Morgan I, Ohno-Matsui K, Saw S. Myopia. The Lancet. 2012;379:1739-1748. 3. Chen T. Myopia epidemic sets off alarm bells. The Wall Street Journal. May 12, 2012. 4. Myopia: Prevention and Control. Retrieved November 25, 2014, from http://myopiaprevention.org/. 5. Heiting G. Why Myopia Progression Is a Concern. Retrieved November 25, 2014, from http://www.allaboutvision.com/. 6. Pierson D. China's myopia epidemic comes into focus. Los Angeles Times. July 5, 2012. 7. Park A. Why Up To 90% of Asian Schoolchildren Are Nearsighted. Time Magazine. May 7, 2012. 8. Kiang KH. First Singapore Eye Research Institute. International Meeting, September 28, 2001. 9. Irving E, Yakobchuk-Stanger C. Amer. Acad. of Opt. 2014 AAO ID: P01 10. Dillehay S, Woods J, Situ P, Payor R, Griffin R, Tyson M, Jones L. Comparison of Three Power Levels of a Novel Soft Contact Lens Optical Design to Reduce Suspected Risk Factors for the Progression of Juvenile Onset Myopia. ARVO Poster, 3637; Poster #A0086. 11. Payor R, Woods J, Fonn D, situ P, Dillehay S, Griffin R, Tyson M, Jones L. Feasibility Testing of a Novel SCL Optical Design to Reduce Suspected Risk Factors for the Progression of Juvenile Onset Myopia. Invest Opthalmol Vis Sci 2014;55: E-abstract 3638. 12. Woods J, Guthrie S, Keir N, Dillehay S, Tyson M, Griffin R, Irving E. Inhibition of Defocus-Induced Myopia in Chickens. Investigative Ophthalmology & Visual Science. 2013;54(4):2662-2668. 13. Miller J, Long B, Dillehay S. Children’s Evaluation of a Unique Myopia Progression Control Lens Design. Vol. 115896. 14. Woods J, Guthrie S, Keir N, Dillehay S, Tyson M, Griffin R, Jones L, Irving E. The Effect of a Unique Lens Designed for Myopia Progression Control (MPC) on the Level of Induced Myopia in Chicks. Ophthalmol. Vis. Sci. 2011;52: E-abstract 6651. 15. Guthrie S, Irving E, Dillehay S, Keir N, Jones L. Controlling Lens induced Myopia in Chickens with Peripheral Lens Design. Amer. Acad. of Optom. 2011 Vol. 110421.