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2. Lighting for the elderly - Wikipedia

   en.wikipedia.org/wiki/Lighting_for_the_elderly

   The 24-hour light-dark cycle is the most important external stimulus for regulating the timing of the circadian cycle. In addition to the aging eye, lighting designers need to consider the unique lifestyle needs of the elderly. It is especially important to provide strong illumination in stairwells to prevent slip and trips, for example.

3. Fluorescent lamps and health - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamps_and_health

   Fluorescent lamps with magnetic ballasts flicker at a normally unnoticeable frequency of 100 or 120 Hz (twice of the utility frequency; the lamp is lit on both the positive and negative half-wave of a cycle). This flickering can cause problems for some individuals with light sensitivity [1] and are associated with headaches and eyestrain.

4. Visual impairment - Wikipedia

   en.wikipedia.org/wiki/Visual_impairment

   Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception. In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6] The terms low vision and blindness ...

5. Lipedema - Wikipedia

   en.wikipedia.org/wiki/Lipedema

   Lipedema is a medical condition that is almost exclusively found in women [3] and results in enlargement of both legs due to deposits of fat under the skin. [2] Women of any weight may develop lipedema [2][3] and the fat associated with lipedema is resistant to traditional weight-loss methods. [4] There is no cure and typically it gets worse ...

6. Balanced-arm lamp - Wikipedia

   en.wikipedia.org/wiki/Balanced-arm_lamp

   A balanced-arm lamp, sometimes called a floating arm lamp, is a lamp with an adjustable folding arm which is constructed such that the force due to gravity is always counteracted by springs, regardless of the position of the arms of the lamp. Many lamp brands (such as the Anglepoise, originator of the concept, and Luxo L-1), as well as other ...

7. Tensor lamp - Wikipedia

   en.wikipedia.org/wiki/Tensor_lamp

   United States. A Tensor lamp is a trademarked brand of small high-intensity low-voltage desk lamp invented by Jay Monroe. [1][2] The lamp was mainly popular during the 1960s and 1970s. [3][4] The lamp was originally used by doctors and dentists, and later became more widely used. [5] The first prototype was created in 1959, and the lamp was ...