Bright knowledge
Bright knowledge
Myopia, hyperopia, and astigmatism are all rays and objects that cannot be focused on the retina. " When light passes from one medium to another medium with a different refractive index, the direction of the light will change. This is called "flexion" in ophthalmology Light". Under normal circumstances, after passing through the eye's refractive system, external light and objects will focus on the retina at the fundus, and then send a visual impulse to the brain, and we can see things clearly.
- 2019-12-03
Prevalence of myopia
According to the "Epidemiology of Prevalence of Myopia of 6 to 18 Years Old" commissioned by the National Institutes of Health every 5 years, 12.8% of the first-grade students in domestic primary school were myopia in 1995. The National Taiwan University Hospital is currently conducting a 2015 survey, and the latest data has not yet been released. However, a 2010 survey showed that the percentage of myopia in primary school has increased to 21.5%, and it has grown by 8.7% in 15 years. Taiwan is a country with a large prevalence of myopia. The younger the child is, the faster myopia increases, and the higher the chance of becoming myopia in the future, the higher the myopia is the main cause of blindness.
- 2019-12-03
Eye killer
The shorter the wavelength of light, the stronger the energy, so the energy of ultraviolet light is higher than that of visible light. Blue light is a light source with higher energy among visible light, with a wavelength range of about 400-500 nanometers and a wavelength close to the spectrum of ultraviolet light.
- 2019-12-03
Medical Research Papers
2018 French International Conference of the International Society of Physical and Rehabilitation Medicine: vision training and FFR frequency sound waves can significantly improve vision
- 2019-12-03