Do I Need Glasses?
How do you know when it's time to get glasses?
Short answer is, get an eye exam. If your eyes are bugging you in any way, it's time to get them checked out! But sometimes our vision changes without us realizing. Sometimes we just need a little more light for doing close-up work. Either way, you shouldn't be straining or squinting. Seeing well is important for healthy eye development and can be a matter of life and death, if you're a driver. So you're wondering "Do I need glasses?" You might, but there are a myriad of reasons why.
The main cause of vision problems are refractive errors. When light passes through an object, it bends. This is called refraction. Light must pass through the cornea and the lens and reach the retina in order for you to see. When the shape of the eyeball or the cornea prevents light from focusing directly on the retina, that is a refractive error. The natural aging of the lens can also cause refractive errors.
The three most common refractive errors that are the culprit of most vision problems are:
- Being nearsighted (also called Myopia.) Nearsightedness means that you can see things that are close but they become blurrier the further away they get.
- Being farsighted (also called Hyperopia.) Farsightedness means things in the distance are clearer than things that are close-up.
- Presbyopia also affects close-up vision, but is a result of the natural aging of the eye. It can affect anyone over the age of 35 but is more likely the older you get.
Presbyopia is common and caused by the hardening of the lens and loss of strength in the muscle fibers around then lens (making the action of focusing more difficult.) If this is the cause of your vision difficulties, its a pretty easy fix; you just need some reading glasses.
Another common cause of eye discomfort is Computer Vision Syndrome, (also called Digital Eye Strain.) Anyone who stares at digital screens for more than 2 hours in a row every day are at the greatest risk. Try the 20-20-20 rule (every 20 minutes, for 20 seconds, look away from screen at a distance of 20 feet) to combat CVS, and check out more tips here
Ten Signs You Need Glasses
- Headaches or pressure behind the eye
- Sitting too close to the screen
- Having a hard time adjusting to dark or light when you change environments
- Eye strain and fatigue
- Seeing double
- Seeing halos
- Unexplained nausea
- Poor night vision
- You find yourself tripping or bumping into stuff often
If you have questions about finding the perfect frames, check out this infographic or contact one of our experienced opticians.
Facts About Refractive Errors (2010, October). Retrieved from National Eye Institute website: https://nei.nih.gov/health/errors/errors
Facts About Presbyopia (2010, October). Retrieved from National Eye Institute website: https://nei.nih.gov/health/errors/presbyopia
Diseases and Conditions: Eyestrain. (2013, April 23). Retrieved from Mayo Clinic website: http://www.mayoclinic.org/diseases-conditions/eyestrain/in-depth/health-tip/art-20049190