Understanding Your Prescription
You may not realise it, but optometrists use a wide variety of tests and procedures to examine your eyes. These tests range from reading an eye chart to complex tests using high-powered lenses to visualize the tiny structures inside of your eyes. Pre-test Before you even enter the testing room, you will usually be taken to a pre-testing area to use two pieces of equipment. One is an Optomap image which is fast, painless and comfortable. Nothing touches your eye at any time an
Eyelids Explained!
The eyelids are thin folds of skin which cover and protect our eyes. They have muscles controlling their movement up and down known as the levator palpebrae. This can either be done via an involuntary or voluntary action of our nervous system. Each eyelid will have a row of eyelashes at the margin which have a function of heightened protection from dust and debris which may otherwise damage the delicate structures of the front of the eyes. The key function of the eyelids is t
Why Don't My Transitions Work in the Car?
Not all transitions lenses actually work the same way in the car as they do anywhere else – they darken in reaction to the presence of ultraviolent (UV) light. The problem stems from the fact that most modern car windscreens already filter out harmful UV rays. Your windscreen is normally quite different from the rest of your glass, in that it’s two pieces of glass laminated with a layer of plastic – vinyl – in between. You then have a triple-layer system…which contains UV inh
Polarized Sunglasses vs Standard Tinting
Ultraviolet rays from the sun are incredibly damaging to our eyes, so proper eye protection is important at any time of year. However, choosing the right sunglasses is no easy task with so many choices available. Polarized sunglasses are specialized eyewear designed to reduce GLARE from surfaces such as water, snow and glass. First, we need to know what GLARE is. Glare is difficulty seeing in the presence of bright light such as direct or reflected sunlight. It can generally
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