Enhance my vision
If you’ve ever wished that the subtitles in a movie were a little easier to read, or that you could spot animals on safari a bit quicker, it may be time to investigate ways to enhance your vision.
Taking a visual acuity test is the first step is finding out how good your vision really is. Visual acuity refers to the sharpness of your vision, and is measured by your ability to identify symbols on a standardized eye chart from a specific distance. Although visual acuity testing is useful in determining the clarity of your eyesight in standardized conditions, it isn’t indicative of your vision quality in all situations. For example, it doesn’t assess how well you see objects that aren’t in high contrast but are, instead, similar in brightness to their background, or in color. Moving objects also tend to be viewed differently by the eye to static ones.
“Vision” is a broader term than visual acuity or eyesight and, in addition to the sharpness of your sight, also refers to visual abilities and skills such as contrast sensitivity, the ability to track moving objects, color vision, focusing speed, and depth perception.
Nevertheless, visual acuity tests produce the results we are all most familiar with, and are the origin of the term “20/20 vision”.
What is 20/20 vision?
The numbers “20/20” (or other fractions such as 20/40 or 20/60) represent visual acuity measurements. They are also called Snellen fractions, after the Dutch ophthalmologist who developed this measurement system in 1862.
In the Snellen visual acuity system, the top number of the fraction represents the distance between the patient and the eye chart. In countries that use the metric system today, instead of the original 20 feet, the distance is 6 meters.
If you can identify the letters on one particular line near the bottom of the chart, your visual acuity is considered “normal”, and you have “20/20 vision” – or, more accurately, 20/20 visual acuity. As the letters you can identify from 20 feet (or 6 meters) get larger, the worse your visual acuity measurements will be, for example 20/40 or 20/60. As the letters you recognize get smaller, so your visual acuity measurements will show the bottom fraction as a lower number, such as 20/15 or 20/12.
Isn’t 20/20 “perfect vision”?
Contrary to popular belief, 20/20 vision is representative of “normal” – not perfect – vision. If you have 20/10 visual acuity, your eyesight is twice as sharp as that of a person with 20/20 vision.
How can I enhance my vision?
Even if your visual acuity is 20/20, you may feel that your vision isn’t as sharp as you’d like.
In some cases where people have 20/20 vision but don’t feel that it’s sharp enough, higher-order aberrations of the eye may be present. Wavefront technology is the most accurate way of checking for these aberrations. Your eye doctor may recommend Custom Wavefront LASIK, a personalized laser correction surgery, to enhance your vision. At New vision Eye Clinic, we use state-of-the-art femtosecond laser technology, which has rapidly become the standard of care for better precision and safety.
If you prefer wearing eye glasses for correcting your refractive errors, glasses with special high-definition lenses might give you sharper vision than regular lenses. New Vision Eye Clinic offers our patients a comprehensive range of optical and optometry products on site, and your doctor will be able to help by making specific recommendations.
Ultimately, you need to enhance your vision using a method that best suits you, your eyes, and your lifestyle. Our team of optometrists and ophthalmic surgeons are committed to giving you tailored individual service to ensure the best possible outcome for you and your eyes.