700 results found
Health topics
… Colour Blindness On this page: What is colour blindness? Colour blindness is a vision problem that means …
Health topics
… Colour Changes in Nails On this page: Overview Overview Colour changes occur in nails for many reasons. A black nail … may also be caused by a medicine or malnutrition. Green discolouration may be caused by bacterial and fungal infections …
Health topics
… How Diabetes Causes Blindness On this page: Overview … Diabetic retinopathy can lead to poor vision and even blindness. Most of the time, it gets worse over many years. … it can make your vision much worse. It can even cause blindness. Treatment for diabetic retinopathy There's no …
Medical tests
… field of vision, and evaluate your ability to see different colours. Others may check how sensitive you are to glare … highest degree of detail—and the peripheral visual fields. Colour vision tests. These tests check your ability to distinguish colours. They are used to screen for colour blindness in people with suspected retinal or optic nerve …
Medical tests
… for your vision. Common imaging methods include: Colour and black-and-white photography. A camera magnifies … . These conditions can lead to poor vision and even blindness. A test can help your doctor see if treatment is … injured or getting thin. There are changes in the natural colouring of the back of the eye. …
Health topics
… vision. Glaucoma is one of the most common causes of legal blindness in the world. At first, people with glaucoma may … the drainage angle is blocked. This can happen when the coloured part of the eye and the lens block the movement of … suddenly. You may have pain and redness in your eye and see coloured halos around lights. Other symptoms include vision …
Health topics
… their surroundings based on differences in brightness or colour (contrast), rather than shape or location. The tests … be able to distinguish objects with similar brightness or colour (low contrast). Because side (peripheral) vision is … acuity (which may show how sensitive you are to glare), colour perception, and how well your eyes work together to …
Health topics
… need examinations more often. Amblyopia Colour Blindness Farsightedness (Hyperopia) Health Screening: … need examinations more often. Amblyopia Colour Blindness Farsightedness (Hyperopia) Health …
Health topics
… will relax, and a feeling of letting go will come over you. Colour imagery Colour imagery is good for combatting daily hassles and … and scan your body for tension or discomfort. Picture the colour red and associate it with this tension. Imagine all …
Health topics
… you inherit from your parents, from blood type and hair colour to certain diseases. Changes in genes or chromosomes … for Hemophilia Colorectal Cancer Genetic Testing Colour Blindness Congenital Heart Defects in Children COPD …
