Monday, October 9, 2017
The Truth About 20/20 Vision
An eye chart, also known as a Snellen Chart, was invented by Ferdinand Monoyer and named after an ophthalmologist by the name of Herman Snellen. An eye chart's use is to check for visual acuity, and can be found in the offices of optometrists and physicians. By measuring a person's visual acuity, you can check for vision impairments and then properly diagnose and treat. Most people hope to receive the news that they have 20/20 vision which is often believed to be "perfect" vision, but while 20/20 vision is good vision, it is not perfect vision. 20/20 vision means that while standing 20 feet from the eye chart you can read what the average person can. With this being said, some people have vision which is even greater than 20/20, for example, 20/15. In this particular case, 20/15 vision would mean that the patient can see at 20 feet from the chart what the average person would see at just 15 feet from the chart. When is the last time that you had your vision tested by a professional?
Subscribe to:
Post Comments (Atom)
In my opinion eye lenses are so much better than glasses we can easily play sports and so much more. I always prefer eye lenses over glasses. coolframes coupon
ReplyDeleteMost regular circumstances like viewing a TV, or taking a shot at your PC screen for a considerable length of time, go out to watch a football coordinate in a bright day.blue light filter glasses
ReplyDeleteEye lenses are good but for some specific time period, after that they start to itching in eyes or damage and also you have to be very careful while using contact lenses, as compare to eyesight glasses yo can wear it 24 hours without worrying.My doctor gives me very healthy tips for eyes while he is an ent in great neck ny and do care for their patient.
ReplyDelete