I have worn contact lenses for a long time due to near sightenness. They are lenses placed directly on the eye.
Oh!  Are they really helpful for your vision and better than glasses?
They provide a clearer vision than glasses, especially with regards to peripheral vision.
That sounds like a great benefit!  Are the comfortable enough to not realize they are in your eyes?
I believe so.  They work for a lot of people.  Over 125 million people worldwide wear them.
Wow!  I would never have guessed that many people wore them!  When were contacts invented?
I really have no idea.  I do know I prefer them when I play sports or do outdoor activities.
Yeah, that sounds so much more convenient than having to wear glasses!  Are they expensive to use?
in the lenses. Some types of safety glasses are used to protect against visible and near-visible light or radiation. Glasses are worn for eye protection in some sports, such as squash.
Glasses wearers may use a strap to prevent the glasses from falling off during movement or sports. Wearers of glasses that are used only part of the time may have the glasses attached to a cord that goes around their neck, to prevent the loss of the glasses and breaking.
Sunglasses allow for better vision in bright daylight
Lensless glasses
Lensless glasses are glasses that lack lenses. They are worn solely for aesthetic or fashion purposes, having no function in vision correction or eye protection. The frames are usually oversized, and commonly all black in color. They may be worn in conjunction with contact lenses. Advantages of lensless glasses are that they do not fog or reflect, and there is no lens that will touch long eyelashes and eyelash extensions.
Lensless glasses first became popular in Japan in the 1990s. The trend died out, but has