Fotokänsliga

Fotokänsliga is a Swedish term that translates to "photosensitive" in English. It describes a sensitivity to light, particularly sunlight. This sensitivity can manifest in various ways, affecting both individuals and materials.

In humans, photosensitivity can be a symptom of underlying medical conditions. Certain autoimmune diseases, such as lupus, can cause increased sensitivity to UV radiation, leading to skin rashes upon sun exposure. Some medications, including certain antibiotics and diuretics, can also induce photosensitivity, making the skin more prone to sunburn or other light-induced reactions. Eye conditions, like uveitis, can also lead to photophobia, an intolerance to light.

Materials can also be photosensitive. Photographic film and digital sensors are designed to be photosensitive, capturing light to create images. However, some materials degrade or change when exposed to light over time. This is why books, artwork, and certain fabrics are often kept away from direct sunlight to prevent fading or damage. The term can also be used in a broader sense to describe anything that reacts to light.