How Contact lenses work?

With the successive outbreak of new advancements, the number of contact lens wearers have increased by 5% every year. Reasons varied from comfort to aesthetics to work-life priorities. Therefore, the history and advancements for contact lenses play a very crucial role in understanding how the contact lens works.


The natural lenses, also called crystalline lenses fitted inside our eyes with time find it tough to variate the focal length with changing distances to form a clear image which results in a condition called ‘Presbyopia’. It can be understood as a combination of farsightedness and nearsightedness, where not only the objects situated afar seem unclear but also those which are situated very near look hazy. For such conditions of vision, one can opt for either Monovision, where your one eye is prescribed with a lens for near vision and the other one for distance vision.  So as a combination, you get a corrected vision for both of your issues.

What are contact lenses?

Contact lenses are nothing but thin layer bulged out silicone membranes.  They are designed as a thin, plastic, cup-shaped object, that can be wear on the film of the tears, placed just right at the surface of the cornea.

How the contact lens works?

Contact the lens is designed, in order to correct the refractive errors and bringing a focused light so that objects appear rightly and clearly. Hence, the contact lenses float on the film layer on the cornea’s surface. They generally do function like ordinary eyeglasses. But due to design manufacturing, contact lens sticks to the tear film of your corona.

Now that we know why it happens, the inquisitiveness to know how the contact lenses work to correct the issues is well anticipated. What happens is that due to prolonged exposure to radiative screen or due to too much stress, the ability of your natural eye lenses to form a clear image on your retina correctly which then is interpreted by your brain deteriorates. To correctly focus the light, beam on to the retina, external assistance is required in the form of glasses or contact lenses

The contact lenses with their clear, curved, polymer-based surfaces once applied on the surface of the eye provide enhanced curvature to the eye. They are designed to correct refractive errors and maintain ocular health. It helps in concentrating the light rays to form a clear image at the focal point.  The lenses are made up of special flexible polymers that attach themselves to the eye through a tear fluid present on the surface of the eye and moves naturally with it. 

In the market these days, lenses are available not only to correct the refractive errors but also other issues related to vision like astigmatism and colour blindness. Lenses these days are also available with advanced polymer technologies that are more comfortable and well-adjusted to wear like the new silicone hydrogel lenses. These lenses can be worn for longer durations, offers greater comfort and helps immensely in dealing with eye dryness. Besides that, contact lenses play a major role in improving your overall aesthetics. For cosmetic reasons also, various people wear contact lenses. To change the colour of your iris, tinted contact lenses are available in the market, the polymer that it is made up of is tinted with a particular shade that reflects light of that colour, and everyone around perceives your iris as of that particular shade.

Lenses can hence help you enjoy a clear vision with enhanced aesthetics in a hassle-free manner. Life is beautiful, have a perfect unhindered vision to enjoy it, in its full glory.

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