New Delhi, Friday, June 29 The bright summer sun keeps staring at us during the hot months. The brightness and the flares of the sun are so strong that we are unable to fully open our eyes at times. Walking, driving or traveling becomes tougher as our eyes feel the strong reflection of sun rays and get strained. The eyes might also get harmed due to exposure to sun rays.
So having a good pair of shades can save our eyes not only from rays but from dust as well. But choosing and buying a good pair of shades that suits our eyes and protects us from harm is not an easy task.
Polarized shades should be preferred during summers. Polarized shades are meant to reduce the brightness and flares of the sun and relax our eyes.
But selecting the right polarized shades is important. You take the salesperson’s word as a guarantee against solar radiation and dust. So you must conduct a test of polarized shades to see whether it would serve you good.
Put on the shades and look at any LCD screen, be it a mobile, digital display watches, monitors and laptops. While looking at the LCD, tilt your head sideways towards both right and left. You can be certain that it is really a polarized pair if the brightness of the display changes noticeably or if weird colors are seen.
The test is easier with a mobile. Just keep your mobile in front of your eyes and rotate it in the same vertical plane. You will see the similar distortion in view as discussed earlier.
This test works because LCD works on the principle of selectively blocking the light on the basis of its angle of polarization.
Now, no matter how hot the day is, you can venture outside, drive, travel or walk wearing the right kind of shades to save your eyes from heat and dust.
