Anatomy. The lateral collateral ligament (LCL) is a one of the four major ligaments in the knee. The LCL is on the outside of the knee connecting the thighbone (femur) to the smaller bone in the lower leg (fibular). Its main function is to avoid varus stress across the knee (where the knee buckles outwards).
49 Responses to âPSA: LED-Backlighting Can Cause Migraine Headachesâ. 1  They should responsible to customer health. 2  Regarding eye strain and headache due to led backlightâ¦. 3  I am sensitive to both flicker and fluorescent light.  There appear to be lots of posts on the internet regarding screens that cause migraines.
Yet with or without flicker, individuals suffering from sensitivity to light experience issues. For example, people who suffer from migraines due to aura or perceptual disturbance. Aura migraines are migraines with symptoms prior to the actual migraine, such as dizziness, seeing zig-zag lines, and light sensitivity. Another issue that is exacerbated by fluorescent lighting is Irlen Syndrome, an optical processing disorder. Fluorescent lights are a major trigger for sufferers of this disease. According to Irlen.com, people with Irlen Syndrome have an increased sensitivity to light which causes headaches, restlessness and trouble staying focused when confronted with excessively bright lights.