Now lets talk about some frequent questions related to computer glasses.
✓ What are the various qualities of lenses used in computer glasses ?
Answer: This depends on multiple factors including your prescription, lens type and material. The possible features are Anti reflective, Hydrophobic, Impact Resistant, Scratch Resistant, Anti blue light, Anti UV, Electro-Magnetic Interference (E.M.I) etc. It should be noted that in certain cases, bringing all these features in a single lens may not be possible.
✓ Why should I opt for amber computer glasses instead of normal ones?
Answer: Normal glasses can correct the refractive error but are not practically that effective for a computer user. Most of the IT professionals would admit that amber lenses alleviate the eye fatigue & eye strain within few minutes. Moreover amber lenses not only correct the refractive error of the eyes (if any) but also improve the screen contrast and reduce the dazzling light coming from the screen.
✓ My eyesight is normal. What type of computer glasses should I wear ?
Answer: Zero power or plano lenses are specially engineered for those who don’t have any refractive error (near sightedness or far sightedness) in their eyes. These lenses have no corrective power and are safe for the eyes. The only thing you have to keep in mind that you do not have to wear eyeglasses that have demo lenses. Those lenses must be replaced with real lenses.
✓ Can prescription computer glasses be made as per my prescription ?
Answer: Absolutely, prescription computer glasses are very common. In roughly 90% of the cases there should not be any problem making computer glasses with the provided prescription but only in certain cases where the person has high lens power of more than 8 SPH or has multi-focal prescription type (both near/ distant refractive error), some technical challenges may occur. Consult with the seller by furnishing a copy of your prescription before placing the order. This will eliminate the chances of delays and disputes. In India, Zebriana® brand does provide prescription computer glasses at no extra cost whereas almost all brands charge extra for the same.
✓ What is the difference between reading glasses and computer glasses?
Answer: As the name itself implies reading glasses are meant for reading purpose. They are inferior version of magnified computer glasses. Reading glasses also makes the view appear a little bigger than original. One can prefer reading glasses if he reads printed books and printed newspapers only. Remember, that basic reading glasses do not block harsh blue light.
However if you execute most of the work in front of digital screens of laptop & mobile then go for computer glasses. Computer glasses have special lens coating that reduces the light intensity of the digital screens. Moreover modern computer glasses are usually engineered to improve the contrast and focus.
✓ I have both near & distant vision issues. What type of computer glasses should I go for ?
Answer: This condition is called presbyopia. There are 2 options in such case i.e Multi focal progressive computer glasses and bifocal computer glasses. Progressive ones are the improved versions of bifocals. Unlike bifocals, computer glasses with progressive lenses do not have the dividing line. As a result the view does not jump when you change the focus from distance to near or vice versa. One should prefer to go for progressive lenses but in case if you have CYL value of more than (+/-1.00) Dioptre in your multi focal prescription then it might not be possible to make computer glasses with progressive lenses. Bifocal glasses can be opted in that case.