Mobile 07748 020315 Optician@eyesathome.co.uk
Glare is often divided into two types: Discomfort Glare & Disability Glare. Most of us experience the first type at some time in our life, it is the need to close one eye, or cover the eyes on a bright sunny days we often use sunglasses to help with this problem and it causes us few problems apart from a little discomfort and annoyance. For many Partially Sighted individuals, the problem is much worse and they experience Disability Glare. This is caused by similar light sources as with discomfort glare (sunlight, windows without blinds, undiffused or un-shaded lamps etc.) but actually results in a reduction in functional vision.
A large percentage of glare problems are caused by the blue wavelengths of light entering the eye, these come to a focus at a shorter distance to the back of the eye than the other wavelengths of light in the visible spectrum and result in scattering of light, this is particularly evident in individuals with developed Cataracts, for whom the degree of light scatter is especially great.
People with Macular Degeneration and Glaucoma are
also prone to glare problems.
There are many ways of helping to control glare, care should be taken
to avoid redecorating in highly reflective silk and gloss finishes, as
these can exacerbate glare, good, well positioned task lighting or wall
lights are preferable to bright ceiling lights, especially harsh, un-diffused
fluorescents. Correctly fitted blinds can help cut out glare from windows,
but take care with net curtains, as when dirty, these can cut out large
amounts of available light and thereby reduce vision further.
When out and about, it should be remembered, that the eye's ability to adapt to the dark becomes slower as we get older, this is even more evident in individuals with retinal problems. Many visually impaired individuals notice that when they enter a shop from a sunny street, they are literally "blind" for a length of time, until their eyes have chance to adapt. This problem and of course glare, can often be helped by the wear of special filter lenses which can be worn as wraparound glasses over your current spectacles, or available in a standard style frame. The wraparound versions are available in one size and have sun blocking side pieces and top bar.
All of our filters are of a high quality product guaranteed to provide
100% UV protection.
These filters come in a range of colours, it is important that you do
not choose a pair which are too dark and reduce your vision further and
are especially careful if worn indoors whilst facing a window or sitting
in a conservatory for example If you do not feel that filters meet your
needs, then a wide brimmed hat or a sun visor can often help. If you
would like further information about this or any other matter pertaining
to your vision, do not hesitate to contact
us.