Frames
We have a huge range of styles and colours. It is important to chose a frame that is
not only comfortable, but also suits the shape of your face
At Forsight Optometrist our staff are trained to assist you in helping to find the right frames for you.
Lenses
Here is a list and description of different lenses you may have for your glasses:
Glass
For many years glass was the only lens material available. It is the most scratch resistant material. The main disadvantage
of glass is that it is heavy, about twice the weight of plastic, and if glass breaks it has the potential to cause more harm
to your eyes. Glass lenses can be chemically treated to increase their impact resistance.
Plastic
Plastic lenses are lighter than glass and they are more impact resistant and therefore safer. They do scratch more easily
than glass although a scratch resistant coating is applied to them. This is the most commonly used lens material.
Polycarbonate
This lens material is more easily scratched than plastic but is more impact resistant. It is often used for people involved in
activities where they are likely to have their glasses broken.
Tinted prescription lenses
You can have your glasses made up and tinted to a colour of your choice. Alternatively you may prefer transition or
photochromic lenses which become darker as the conditions get brighter, and lighten up when you go indoors.
Making your lenses look more attractive
Both plastic and glass lenses can be made in "high index" materials. With these denser materials, stronger lens corrections
can be made thinner than with conventional materials.
Anti-reflection coatings can further enhance the appearance of your lenses by removing distracting reflections which occur at
both surfaces of your lenses. The removal of reflections can also help reduce eye fatigue for computer operators.
Bifocal and multifocal lenses
The simplest type of multifocal lens is a bifocal, which gives clear distance vision through the top part of the lens, and
clear reading through a segment at the bottom. The drawback with a bifocal lens is that it has a line across the top of the
reading segment.
The most common type of multifocal is a 'progressive' lens. There is no line and this provides all the benefits of bifocal
with the added advantage of continuous clear vision at all distances, including arms length. New progressive lenses usually
take a few days to get used to.
Frames
