A look at the issues faced when buying glasses online and how to overcome them.

1. Discount Eyeglasses Online
If you are looking for discount eyeglasses then you need to be looking
online. Buying glasses online raises a few issues but these are more than
made up for by the savings you can make.
The first step in buying discount eyeglasses online is to choose your
frames. Online stores usually have a large selection but you need to be
sure that they will fit. You can achieve this by going for something like
your existing glasses (the information that you need on this can be found
via this link - Eyeglasses Online).
Having chosen your frames you can then move on to considering:
Type of Lens
• Standard lenses which can be for reading, distant vision or even
without prescription, if the glasses are to be worn for fashion
purposes.
• Bi focal lenses which are clearly divided into sections for reading
and general use.
• Progressive Lenses that like bi focals allow reading and general use
but the prescription changes gradually. Wearers generally like
progressive lenses better than bi-focals not least because they look
better but they do make your discount eyeglasses more expensive.
Lens Material and Thickness
• Glass lenses are a thing of the past, today's lenses are made of
plastics that weigh less and do not break easily.
• Polycarbonate lenses in particular are impact-resistant and are
suitable for people involved in sporting activities or work in a
situation where their eyeglasses may be scratched or broken.
• Thin high index lenses are more expensive but they may be
necessary if your prescription is strong.
Coating Of Lens
• Anti-reflective coating - stops reflections off the lenses which
improves night vision particularly when driving. It also has a
cosmetic benefit in that other people can see your eyes more
clearly.
• Anti-scratch coating - makes lenses more durable (but not scratch
proof). Some lenses such as those made of polycarbonate have this
built in.
• UV coating - normal plastic lenses block much UV light but this
coating will give 100% protection. Worth having it you will be
wearing your glasses outside (without sunglasses). The more
expensive lens types usually have UV protection built in.

2. Lens Tints
If you are ordering prescription sunglasses you will need to select the tint
color. The default will probably be gray but you can select your personal
preference.
Photochromic (often called Transition) Lenses Photochromic lenses
are almost clear indoors but darken automatically outdoors where they
provide full UV protection. As such they are very convenient and avoid the
need for prescription sunglasses in most conditions. The exception is that
they probably won't work in a car.
Once you have chosen your frames and decided what sort of lenses you
want you will find ordering online is simple and fast.
Should you be a contact lens user then you will be interested to know that
it is even easier to purchase contact lenses online as all you need to do is
find a reputable online store with a low price..