Specialized protective filter glasses are necessary for people with low vision and diseases such as: macular degeneration, diabetic retinopathy, glaucoma, retinitis pigmentosa, cone dystrophy, Stargardt’s disease, albinism, color vision deficiency and color blindness. However, they are equally useful and relaxing for people with photosensitivity, photophobia and for those who have undergone surgery from cataracts or glaucoma.
Protective filter glasses are not just sunglasses, unlike sunglasses they only allow certain wavelengths of light to penetrate the eyes. This selective light diode depending on the degree of sensitivity, needs, disease and activities of the patient, is what makes them a unique and necessary aid for low vision of daily use for both open and closed spaces.
Protective filter glasses filter ultraviolet radiation, violet radiation (blue radiation) as many of them filter even infrared radiation. In other words, the protective filter glasses “manage” the light that reaches the eyes, maximizing functional vision without limiting brightness.
Protective filter glasses reduce annoying light reflections that create glare in the eyes, enhance the perception of light contrasts, neutralize flashes, improve the adaptation of vision to brightness changes (from bright light to dark and vice versa) and relieve light-sensitive eyes. They allow the patient, regardless of visual acuity and disease, to see more clearly, to distinguish colors more easily and to move more easily in space.
Protective filter glasses are manufactured in many colors with different light transmittance and properties and in many designs.
The Optometrist specialized in low vision is the only competent one who has the scientific knowledge and can advise the patient on the right choice of protective filter glasses since in many cases patients suffer from more than one disease, e.g. macular degeneration in combination with cataracts, glaucoma in combination with diabetic retinopathy, etc.