Unless they use strong lighting, with visual impairments experience night blindness, some people, whereby travel at night or in poorly lit areas, is either impossible or greatly hampered. With retinitis RP, this is especially true of persons, an inherited condition that affects the rods, in the retina of the eye, and the specialized cells that assist in night vision. At five ophthalmology practices in Utah (low vision rehabilitation services), as a low vision therapist, with RP get lighting devices for night travel or even for use in dark auditoriums, hallways, and stairways, over the years, I have helped scores of persons. For night travel, there are many kinds of lights that people who are visually impaired can use. The first, there are conventional halogen or krypton bulb flashlights. The second, with a combination fluorescent tube for general travel, there are dual sport lights, for checking a specific area or item, illuminating a wide path, and a spot krypton bulb. However, for mobility purposes, with RP or other conditions, many persons that lead to night blindness often find that these first two categories of lights are just not bright enough.
With night blindness, for night travel, among the most useful lighting devices such as the high power flashlight for people are three other categories of lights. The first, there are high-power, adjustable beam flashlights that are rechargeable. For work at night, police officers often use this powerful type of bright light. Next, for night travel and other uses, the high-power headlamps have recently become available. When they are seeing the path ahead at night, they allow the traveler to be hands-free. At last, there is the extremely wide-beam Wide-Angle Mobility Light, by itself, whose features put it in a category.
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