What You Need to Know Concerning 20/20 Vision and Getting the Right Designer Eyeglasses
Your vision is important in your life. Have you ever wondered if you know what entails the best vision? Eye doctors look at a number of aspects when they look at your vision. You can take care of your eyesight by seeing a good ophthalmologist. In this article, you are going to learn more about 20/20 vision.
20/20 vision means that a person is able to see what an average person can see when standing 20 feet away from an eye chart. An eye chart measures visual acuity. The number that is at the top of the eye chart refers to the distance between you and the eye chart. It is essential for you to know that the digit indicated at the lower level of an eye chart show the distance that a normal person requires to read the line you are reading on an eye chart. You should be aware of the fact that visual acuity below the 20/20 line, for example 20/30 line shows worse visual acuity. You also need to know that the line below the 20/20 line represent a better visual acuity. This clearly shows that 20/20 is not the perfect vision a person can have.
You need to know what vision, eyesight, and visual acuity means. You need to know that eyesight refers to your sense of seeing. Vision is a broader term that refers to various visual skills and visual abilities. Visual acuity on the other hand is the sharpness of vision. A person’s visual acuity is determined by several factors. It is also essential for you to understand how visual acuity is quantified.
Ophthalmologists and other eye doctors will tell you to wear glasses that have lenses whose goal is to bring your vision to 20/20 like that of a normal person. You should be aware of the fact that most adults need corrective eye surgery, contact lenses, or eyeglasses so that their vision can be 20/20. People with above 20/40 vision are the only ones that are allowed to drive in most countries. You will be considered legally blind if your vision is 20/200 or even worse. It is vital for you to make sure that you take your young one to an ophthalmologist for visual acuity testing as soon as they are old enough to take the eye exam. You need to know that kids at the age of eight or nine will lose their vision when they attain ages eight or ages nine after which their visual acuity is stable until they reach ages sixty and above. It is also possible for you to have 20/20 vision but still have poor vision due to high order aberrations that cannot be corrected by soft contact lenses or regular eye glasses.