It's easy to take your glasses for granted. You put them on, they drastically improve your vision, and you continue on your day. But have you ever stopped to think about how incredible that is? For most of human history, there wasn't much we could do about bad eyesight. Now, you simply visit Langley Optometry Clinic for eyeglasses in Langley and you can see perfectly clearly again. Just how are glasses able to do this?
To understand how glasses work, you need to understand a bit about how vision problems develop.
When someone with perfect vision looks at an object, the light rays coming from that object enter through the pupil and the retina and are focused directly onto an area at the back of the eye known as the retina. The retina translates the light into electrical signals which get sent to the brain, creating the perceptual experience of vision.
Issues with the shape of the eye will result in vision problems. In individuals who are nearsighted, the light coming from an object is focused too far in front of the retina, making it difficult to see objects that are far away. In farsighted individuals, the light is focused too far behind the retina, making it difficult to see objects that are too close. When light doesn't focus properly on the retina, it ends up having to send incomplete information to the brain, resulting in a blurry image.
Thankfully, eyeglasses in Langley can easily correct for near and farsightedness. By simply using a curved piece of glass or plastic in order to bend the light before it hits your eye, glasses ensure that the light focuses directly on your retina and produces a clear, sharp image.
Eyeglasses in Langley come with two main types of lenses. In order to correct nearsightedness, lenses need to be convex. Convex lenses will push the focal point of the light further back into the eye. Farsightedness, on the other hand, can be corrected with concave lenses. Concave lenses cause the focal point to move forward in the eye, ensuring that the light no longer focuses behind the retina.
Blurry vision is also often caused by a condition known as astigmatism, which can be accompanied by near sightedness or farsightedness, or which can occur on its own. In astigmatism, the retina and/or the lens of the eye are irregularly shaped, bending and warping the light that comes through it. Thankfully, astigmatism can also be corrected with the right pair of eyeglasses in Langley.
Improve Your Eyesight with Eyeglasses in Langley
At Langley Optometry Clinic we provide comprehensive eye care services along with quality eyeglasses in Langley, and we have been doing so since 1949. If you think that you might need glasses, then an eye test will determine what sort of vision problems you are experiencing and what prescription you need. Having clear vision is important, so don't wait to make an appointment with Langley Optometry Clinic today.