If you spend a lot of time outdoors, you might find that your glasses are a liability. Not only can some pairs break easily, but they might not be comfortable to wear unless you choose the right type.
First, look at the material the lens is made from. When a lens pops out of your glasses, it can easily be stepped on and broken if it is not made from a durable material. Heavier glass lenses are more resistant to damage, but they can also be uncomfortable to wear on your face. However, newer, lightweight polycarbonate lenses that are impact-resistant are now available.
Glasses need to be protected from scratches and abrasion. Unfortunately, glasses that are very impact-resistant, such as polycarbonate lenses, are also the softest. But luckily, there are some glasses that come with an anti-scratch coating that will protect them while also allowing them to be more impact-resistant.
Plastic frames are more likely to break than metal frames. Under high temperatures, they are also more likely to melt. Depending on the material, not all metal frames are resistant to corrosion. One of the best metal frames is titanium. Beryllium is also great, especially for those who have acidic skin or who spend a lot of time in salt water. Monel is not a durable material, but is resistant to corrosion, especially seawater. It is very flexible.
Flexible materials are easier to repair because they are less likely to permanently bend out of shape. Monel and flexon are especially flexible, while titanium, stainless steel and aluminum are not. One of the most advanced flexible options is "memory metal." These can be twisted, crushed or bent, but will return to their original shape.
For instance, if you are jogging, your glasses fall off and you accidentally step on them, the glasses will be more likely to not be damaged. By being flexible, it is also easier to bend your glasses to fit comfortably on your head. You do not have to worry about falling asleep with your glasses on and accidentally breaking them.
If you can afford to purchase more than one set of glasses, you might want to purchase glasses for different situations. For instance, if you spend a lot of time outside, you may want to purchase polarized sunglasses with your prescription. Then, when you enjoy the outdoors, you won't have to worry about your glasses. Visit an eye doctor for more information.