The condition ‘crossed eyes’ is perhaps better known by its medical names ‘squint’ or ‘strabismus’. It occurs when the eyes are not coordinated. When one eye is looking at something, the other eye is looking in a different direction, either turned in towards the nose or looking out. The Light Reflex Test You can do…
DetailsThis is a test for colour blindness or to use a better but less common term, colour vision deficiency. Most so-called “colour blind” individuals are not truly colour blind but instead have abnormal colour vision. They only have problems distinguishing certain colours and shades of the same colour. They do not see only in black…
DetailsTest one eye at a time. Cover the other eye with an eye patch. You can make an eye patch by simply folding and with a piece of tissue paper. Look at the chart projected on the screen at a close reading distance of about 36cm (14 inches). Wear your reading glasses to do the…
DetailsThe test is done one eye at a time. Cover the other eye and view the astigmatism dial. Do all the lines appear equally dark? If so, you do not suffer from astigmatism. However, if some lines appear significantly darker than others, you have astigmatism. Note : The danger of astigmatism Astigmatism is a condition where…
DetailsAs one reaches the age of 40 years, the eyes start to lose their ability to focus for near. This natural aging phenomenon is called presbyopia. It is also known as middle-age farsightedness. Shortsighted people tend to become presbyopic at an earlier age. Instructions : Position your eyes so that they are at a close…
DetailsDo this test if your Distance Vision Test result is worse than 6/6. Instructions: You will first need to make a pinhole eye occluder. This can be simply made by cutting out an 8cm by 12cm piece of card paper and punching a 1.5 mm diameter pinhole through it as shown: To do the Pin…
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