There are two types of dangerous UV rays. UVA rays cause damage to the central vision. UVB causes damage to the lens and corneas located at the front of the eye. Always wear UV-blocking sunglasses when going outside. A wide-brimmed hat is also a good addition for summer. Make sure that your choice of sunglasses filters out 100 percent of UVA and UVB rays. Here is why you should protect your eyes from UV rays.
This clouding of the eye’s lens, known as a cataract, causes blurred or cloudy vision and other vision problems. In some cases, it can even lead to blindness. People with cataracts often say that their sight is like looking through a waterfall. The word “cataracts” comes from the term for “large waterfall.” It often takes several years for cataracts to distort light rays or prevent light from reaching the light-sensitive retina.
Eyeglasses have long been upgraded from merely being a tool to correct vision problems. Thanks to the influence of social media, the use of glasses has taken on an aesthetic purpose to enhance your signature look. With countless choices available when it comes to frames and lenses, choosing the right pair of glasses can be pretty overwhelming. Nevertheless, you can still arrive at the best option so long as you understand your physiology and what your eyes need.
Scleral contact lenses are large-diameter contact lenses that do not make contact with the entire surface of the eye but instead vault over the majority of it, only touching down on the sclera, which is the white part of the eye. The gap that is beneath plays an important role in the suitability of these lenses for those patients who can’t wear regular varieties.
Ortho-K, or orthokeratology, is an innovative new way of helping patients with refractive eye errors such as myopia (nearsightedness) see without using prescription contacts or glasses. It works using specially-designed, gas-permeable contact lenses that are worn overnight to reshape the cornea while you sleep. You simply pop them in before you go to bed and, while you are in the land of nod, they will work along with the tear film that flows beneath them, to make your cornea a more regular shape. The next morning, you can take them out and you will see a significant improvement in your vision.