Your optometrist determines the type and degree of refractive error you have by performing a refraction test. This can be done with a computerized instrument (automated refraction) or with a mechanical instrument called a phoropter that lets your eye doctor to show you one lens at a time. Often, an automated refraction test will [...]
The eye's ability to refract or focus light sharply on the retina is primarily based on three eye anatomy features: the overall length of the eye, 2) the curvature of the cornea and 3) the curvature of the lens inside the eye. Eye length: If the eye is too long, light is focused before it [...]
How the eye sees The process of vision begins when light rays that reflect off objects and travel through the eye's optical system are refracted and focused into a point of sharp focus. For good vision, this focus point must be on the retina. The retina is the tissue that covers the inside of [...]
Vision issues are often the main reason a person seeks the services of an optiometrist, but what does it really mean when we're told that our vision is blurry because we have a refractive error? We see the world around us because of the way our eyes bend (refract) light. Refractive errors are optical [...]
Adjust your computer display settings. Adjusting the display settings of your computer can help reduce eye strain and fatigue. Generally, these adjustments are beneficial: Brightness Adjust the brightness of the display so it's approximately the same as the brightness of your surrounding workstation. As a test, look at the white background of this Web [...]
Minimize glare. Glare from light reflecting off walls and finished surfaces, as well as reflections on your computer screen also can cause computer eye strain. Consider installing an anti-glare screen on your display and, if possible, paint bright white walls a darker color with a matte finish. If you wear glasses, purchase lenses with [...]
Use proper lighting. Eye strain often is caused by excessively bright light either from outdoor sunlight coming in through a window or from harsh interior lighting. When you use a computer, your ambient lighting should be about half as bright as that typically found in most offices. Eliminate exterior light by closing drapes, shades [...]
It seems everyone is staring at a computer screen, phone or other digital device these days. And it's causing a serious problem called digital eye strain. One way to help your eyes? Digital screen protection glasses . Recent research sponsored by The Vision Council has shown that 59 percent of people who routinely use [...]
Cataracts are common, but treatment is very effective. Cataracts are a relatively normal part of the aging process. Symptoms can include blurred vision, faded colors, glare, reduced night vision, and double vision. Cataracts are associated with exposure to UV rays or radiation therapy, such as cancer treatment. Taking certain medications like prednisone can also [...]
The leading cuase of Blindness after 60 After age 60, macular degeneration is a leading cause of blindness. Macular degeneration occurs when eye tissue degenerates, causing blurriness or loss of vision in the central part of the eye. There are two forms of macular degeneration: wet and dry. If vision loss is caused by [...]
