Sun glasses do have any negative effect?!
Question:
Sun glasses do have any negative effect?
Answers:
Sunglasses can only have a negative effect if they are tinted and have no or little UV protection. If you have a lens that is tinted it makes your pupils dilated which lets more light into your eyes...if you have no UV protection with tinted lenses then more UV rays are actually getting into your eyes!!!!
Sunglasses with full UV protection are great for your eyes and for protecting them from damage like photokeratitis, growths like pterygium and pinguecula and the early onset of cataracts and macular degeneration.
Sunglasses with UV protection should be worn every time you go outside... there is absolutely nothing wrong with wearing them :)