School examinations have just finished! Things-to-do-in-vacation list must be already making everyone excited.
Summers have made us feel their presence already! This is the time when everyone wants to immerse themselves into water be it swimming pools or water parks. But the bright sunlight and on top of that reflection of sunlight from water causes a lot of glare.
With every passing age, human eye’s ability to adjust to glare gets weaker. Our natural crystalline lens normally takes 6-7 seconds to fine tune to glare. Light rays normal distribution is multidirectional but when light beams falls on a surface like water it gets reflected in a more uniform (usually horizontal, more unidirectional) direction. The bouncing of light in more horizontal direction increases its intensity a lot thereby producing glare and reducing visibility.
ENTER POLARIZED GLASSES!
Glare can lead to eyestrain, hence, polarized glasses were invented. When the sunglasses are made, specialised chemicals are incorporated into the lenses. These special chemicals block the intense light and hence ease the light waves thereby reducing the glare sensation.
Besides glare, ultra Violet rays from the sun can also cause significant damage to our eyes in the form of early onset of cataracts, macular degeneration, corneal sunburns called photokeratitis, bumps on the eye called pterygium and pingueculum and even eye cancers. So protection from UV is required not just for our skin but our eyes as well.
Hence, polarized sunglasses give optimum safety for those who spend a lot of time outdoors in sun. People who love hiking, biking, outdoor swimming can benefit a lot from wearing polarised sunglasses. Additionally people who have undergone cataract surgery or corrective eye surgery, along with light sensitive people can benefit as well.
These sunglasses are especially advantageous as they give maximum protection for professions like sea-diving coach, kayaking, or whose job requires them to be in bright sunlight most of the time. Only the downhill skiers are not advised to wear polarised glasses. For downhill skiers we don’t want to block the light, it gives them an indication of the impending hazards.
There are polarized glasses that come up with photochromatic lenses, which is a great option for these outdoor professions. Photochromic lenses also known as light-adaptive lenses are those lenses fitted in to the glasses which when worn in sunlight, it darkens automatically.
Check how to choose sunglasses here.
You May Also Like to Read: 3 Common Eye Problems and How to Treat Them
One commonly made harmful choice while buying sunglasses is that one tends to go for minimally priced sunglasses rather than good quality ones which are more expensive than those low-priced ones.
The poor quality sunglasses do not have adequate UV protection and hence can harm the eye.
One should go for sunglasses after consulting your eye care professional.
ABOUT ADVANCED EYE HOSPITAL:
Advanced Eye Hospital and Institute is a multi-specialty eye hospital located in Sanpada, near Vashi Railway Station. AEHI provides best eye care treatment for patients from all areas in and around Navi Mumbai including Nerul, Panvel, Airoli, Kharghar, Chembur, Ghatkopar and Mulund.