Vision

Learn how your vision works and what affects it. These articles explain focusing, colour vision, depth perception, and normal age-related changes.

Colour Vision: What Employers Need to Know
Having colour blindness is not widely regarded as a handicap or disability – it is just a difference in the colours that some individuals can see. Employer...
Computer Vision Syndrome
This complaint is a temporary problem that arises from spending long periods of time in front of a computer screen. It can cause blurriness of vision often f...
Driving and Eyesight
Good eye sight when driving is important to ensure you are not endangering yourself or other road users. If you need to wear glasses, it’s a good idea to c...
Eye Tests and Diagnosing Albinism
Albinism is an inherited trait. People who are albinos have a mutation in the gene that codes for the pigment melanin. This pigment is responsible for hair,...
Living with Low Vision
There are many misconceptions out there about people who have poor vision. Blind people generally have some vision and some people who do not look blind may...
Night Blindness Explained
Many people have heard of the term night blindness but most do not know exactly what it is or what causes it. Night blindness, or properly called nyctalopia,...
Night Vision
Everyone should take extra care when driving at night because no matter how good your vision is, it will be more difficult to see. In most areas there are go...
Questionnaire: Do I Need an Eye Test?
Many people think it important to visit the hairdresser regularly, get their cats or dogs vaccinated annually and have a twice yearly check up with the denti...
The Latest Eye Tests
Having an eye test is an important part of your health routine. Most people should have an eye test at least once every two years, some more frequently, espe...
What Are Photoreceptors?
Photoreceptors are specialised cells found in the retina at the back of the eye. They allow us to see contrast and shade and the definition of objects, and a...
What Does it Mean to Be Legally Blind?
You might think that it is a case of being blind or not, but vision loss happens over a wide spectrum. For legal purposes, it is necessary for us to define b...
What Makes Colour Vision Possible?
The sense of sight is possible because the eyes contain specialised structures and cells that convert light from the outside world into electrical impulses....