Protecting your eyes
Bright light may be uncomfortable for many people with macular conditions. It is important to protect your eyes from glare as well as ultraviolet light.
Glare is the discomfort to vision caused by too much light. A number of macular conditions can make glare more of an issue and some people become very sensitive to light. Other reasons include cataracts, which scatter light as it enters the eye.
Tips for reducing glare:
- Wear a hat or cap with a broad brim or peak.
- Choose a close-fitting style of sunglasses or wrap-around frames.
- Try anti-glare filters in the form of 'fit-overs' which have built-in side and brow shields. These are worn over the top of ordinary glasses.
- If white paper causes glare while you are reading, try using a transparent plastic 'overlay' sheet or wearing yellow anti-glare spectacles. If you are writing, try yellow paper as it is less likely to cause glare.
- If you find computer screens uncomfortable, reduce the brightness or change the 'view settings' on a website home page. There are plenty of useful tips online on how best to use technology. Yellow anti-glare spectacles can also help.
- Make sure lighting at home is bright and even. Lamp bulbs should be covered by shades and positioned so that light doesn't shine directly into your eyes. For more information please see our Lighting webpage.
Ultraviolet light (UV) comes from the sun and is invisible to the human eye. UV light can cause sunburn and damage to the eyes.
Studies suggest that some people could be at a higher risk of developing macular disease because they have low macular pigment, which protects against UV light. Macular pigment is made up of antioxidants such as lutein, which is thought to act as a natural sunscreen for the macula. Lutein is found in a lot of leafy, green vegetables. You can read more about eating for your eyes by seeing our Nutrition webpage.
It is important to protect your eyes from UV light to prevent further damage but unfortunately you cannot reverse any damage that has already been done. Encourage everyone you know to have regular eye tests and wear hats and sunglasses. Reflections from sand, snow and water increase the effects of UV light.
Video: Essential tips for protecting your eyes
The video below provides essential tips for protecting your eyes from glare and ultraviolet light.
Sunglasses and UV filters
- Make sure sunglasses have a UV filter and ensure the lenses are good quality by choosing glasses that have a European CE mark or British Standard BS EN ISO 12312-1:2013.
- Sunglasses marked UV 400 should block 100% of UV.
- UV filters can be clear. They can be used in ordinary prescription glasses, sunglasses and contact lenses. Top tip - Never use a tinted lens for driving at night. You can reduce dazzle from headlights by keeping your windscreen clean inside and out, and by getting anti-reflection coated lenses for your driving spectacles.
Blue blocking lenses
Blue blocking lenses are filters that protect the eyes from both the UV and the blue light that causes glare. Traditional sunglasses make things darker. Many people with macular disease find this reduces their level of vision, making it harder to see steps or other hazards.
Sunglasses do not generally protect against blue light from the sun which can also cause damage to the eyes.
Blue blocking lenses protect the eyes from blue light. They also reduce glare without making everything darker. Blue light tends to make things hazy, so blue blocking lenses can sharpen images. These lenses are usually yellow or orange, although other tints can be added to improve their appearance.
Paler yellow lenses are good for indoor use because they work well in artificial light, while a range of shades can be suitable for outdoor use depending on the light conditions.
Blue blocking lenses can be ordered from low vision services, sensory impairment teams and resource centres for visually impaired people. Ordinary prescription glasses can also be made with blue blocking filters.
There are no British or European standards for blue blocking lenses, so buy from a reputable company, or ask for advice from your optometrist or optician.
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