The amount of sunshine hitting the earth varies daily, but it also varies seasonally. Two moments in the year, the Summer solstice occurs. In the Northern Hemisphere, June 20 to June 21st and in the Southern Hemisphere, December 21 or 22nd, the path of the Sun in the sky locates farthest. It means those days have the most daylight. So, what does all that sunlight do to the body and the eyes?
Sunshine and vision
Our eyes funnel light into the interior of the body to reach nerve endings in the retina that send the information to the brain to be processed. Light literally guides a person to do the tasks of living.
Light from the eyes modulates the function of the brain and its cognition. It triggers the hormone response that gives a biological response of biorhythms.
More light kicks in the system of serotonin that lets people concentrate. Less light kicks in melatonin, and that helps us relax and sleep.
A few studies have shown that spending time outdoors or in ambient lighting lessens the likelihood of developing myopia. Simultaneously, too much exposure to light can cause cataracts and other eye issues, so the eyes demand balance when it comes to sunshine.
Protective sunglasses offer balance
In any light that comes down from the skies, a portion of it is ultraviolet light. The effects of UV light ray damage to eyes have been extensively recorded.
It has been proven in many studies. UV light contributes to cataract formation and retinal degeneration.
It initiates the formation of free radicals that modify proteins and the peroxidation of lipids(fat). When a lens cloud a person gets blurred vision or damage to the retinal cells’ which appear as ghosts, halos, and strange streaks.
Putting on a pair of sleek modern sunglasses can prevent some eye conditions if caused by taking in too much light. Today’s sunglasses have UV protection embedded into the lens itself.
Laws require sunglasses to be labeled with “100 percent protection against UVA and UVB” rays. Sunglasses testing available at many optical shops and even some Houston clinics like Houston LASIK.
A photometer check can give specific knowledge about the UV level of a pair of old glasses. Better yet spiffy, stellar, state-of-the-art sunglasses with the latest UV protection in the lens sit in the office of Houston LASIK waiting for a new owner.
Take a look
While waiting for the staff or doctor, stroll over to the available lens. Try on a few pairs.
Find a set that brings forth the best features of the face. If sunny, walk outside and see how much clearer the vision can become.
Don’t drive off. Might even want to use them for the eye chart. Now that you have had the sample, adopt that pair of sunglasses, and defeat the formation of cataracts just like a Marvel comic hero.
Better yet show your support for the troops from the Military Combat Eye Protection Program. They wear authorized sunglasses as part of their equipment.
Air Force and Navy visit the clinic for the same reasons other people do.
All in a day’s work at Houston Lasik Clinic. Enjoy the sunshine and sunglasses.