im getting glasses and the plastic lens is a lot cheaper ?
Stick to the plastic lens if you do a lot of sports activities as its much safer than glass lens. Glass lenses will also be a lot heavier.
Bottom line here is, STAY AWAY FROM PLASTIC LENS! the reason is that plastic lens have a lot of imperfections and Distortions where glass Len's can be corrected alot better and easy er and cheep er and will give you a much sharper photograph es! and color reproduction! Thank You, Bob
I've had both types and based on my experiences with them, glass is more durable than plastic. It doesn't scratch as easily and is less likely to smudge when you're cleaning it. However, it is considerably heavier than plastic which could be very uncomfortable if you wear a strong prescription since your glasses will feel heavy and constantly slide down your nose. If you wear a mild prescription, glass would be a better choice since it doesn't get scratched or scuffed up nearly as much. Even when treated with scratch resistant materials, plastic lenses still get scratched more easily than glass. As for safety concerns, I wore glass lenses for years. I never had problems with breaking them. If anything, the frames were more likely to break than the lenses. Aside from changing prescriptions, that was the most common reason I had to replace my glasses. Another thing I'd like to mention was that in the past before high index came along, another reason I would choose glass was because the lenses were thinner than plastic.
Glass is twice the weight and usually more expensive and can take a couple weeks to get. Even though they are tempered for better safety, they are still not as safe as we would think that they are. I have seen many injuries, and had one myslef from glass lenses. Plastics are half the weight, usually less in cost and can be made sometimes in an hour. Most plastics can be treated with scratch resistant coatings. The better the coating the better the scratch resistancy and the longer the warranty. Polycarbonate materials are usually half the weight of a plastic lens, are one third the thickness of regular plastic or glass, and have a regular scratch coating that usually has a 1 year warranty against scratching. Uv light passes through glass and regular plastic and does not pass through Polycarbonate. Poly is also 10 times more impact resistant that regular plastic. I recommend Poly for most of my paitents for all of these reasons.
The plastic len's is lighter than glass but you have to be careful cleaning them they will scratch much easier than glass len's.
