Our eyes are the most delicate organs in our body. One of the most important six senses in our body - eyes are vital to our living and vision is one of the gifts for humankind. Eyes are one of the most sophisticated systems in our body and are connected to the brain with millions of optic nerves and tissues that capture and process images into signals and eventually stimulus and information for our brain in electrical pulses.
The eyes require eyeglasses and other visual aids with time as eyes are bound to get damaged over a period of time due to old age or due to excessive exposure to UV radiation from digital screens such as TV, phone, and computers. Excessive strain on the eye can increase the power leading the eye to require special aid to see better.
How do Eyeglasses work?
Eyeglasses are visual aids for humans designed to enhance the images that our retina can otherwise not capture perfectly clearly. When the focal length of our eye gets compromised due to either nearsightedness or far-sightedness, we require eyeglasses to help regain the focal length so as to clearly capture the objects in front of our eye and thereby transfer these images as electrical impulses to our brain through the optic nerve.
There are many different kinds of eyeglasses based on the condition of the eye and the lens that helps to see clearly. Some of the most popular lenses for eyeglasses are:
●
Monovision or Single Lenses
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Bifocals
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Trifocals
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Progressive lenses
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Prism Lenses
Buying an eyeglass depends on an optician as one needs to get tested before ascertaining the kind of lens and the power of the lens that needs to be used for the patient. For this purpose, it is generally recommended to visit your ophthalmologist at least once a year to check on the health of your eyes and the power of your eyesight.
Based on the test result, you can purchase eyeglasses from an optician who will further conclude the lenses that you require in your eyeglasses. The patient can choose the kind of frame that he or she needs which suits their style.
How often should we get new eyeglasses?
It is necessary to get a new eyeglass frame the first time you are advised to start using eyeglasses for seeing better. Eyeglass frames can be replaced under the following circumstances whenever required:
1.
When your frames eventually get loosened due
to wear and tear
Eyeglass frames can become loose with time when worn constantly. Opticians recommend using both hands to put them on and off otherwise they may become loose.
2.
When your frames become dull and misaligned
with time
Frames do get misaligned if they are not handled carefully and are not removed or kept properly in their cases or become dull when put out on car dashboards and in the sun.
3.
When your frames place excessive pressure on
your nose or sides
Some frames may not fit your face perfectly and may place excessive pressure on the side of the nose causing discomfort. This is a sign to change the frame.
4.
When your frame is no longer suitable for your
face
As children grow up, their frames may no longer be suitable or age-appropriate and might need changing as per their grown face.
5.
A need for new color or design for frames
Changes in fashion and style may invoke the
need to change the frame.
