There are many materials that can
be used to make glasses such as plastic which is most commonly used in
children’s glasses. The type of material used in your glasses effects the
style, weight and durability of your glasses, it can even effect the colour of
your glasses. These are the materials that glasses frame can be made from. The
most common ones have a small bit written about them.
Plastic:
This is commonly used in the ‘rainbow’
coloured glasses as plastic is easy to colour.
It is very cost effective for the production of eyewear and is very
lightweight so children aren`t annoyed by them. Particularly popular right now
are laminated zyl (zylonite, or cellulose acetate: which are types of plastic) frames
that have layered colours. Look for light colours on the insides, which
can make your Glasses "disappear" from your vision when you
wear them. All-black frame is visible at all times on
both the insides and the exterior of your glasses. Eyeglasses made of nylon first were
introduced in the late 1940s. Because of brittleness and other problems,
eyeglass manufacturers switched to blended nylon. Today's blended nylon frames
are both strong and lightweight.
A common type of rainbow glasses.
Image:http://www.kidseyes.com/user-files/rainbow_mattisse.JPG
Plastic
frames do have some disadvantaged as well. They are easier to break than metal
glasses. They will burn but will not be ignited easily. Aging and long-term
exposure to the light can cause a decrease in its durability and strength. In
time the colour can also fade in glasses made from plastic.
