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.
Poor lighting can be a safety hazard - misjudgment of the position, shape or speed of an object can lead to accidents and injury. Poor lighting can affect the quality of work, specifically in situation where precision is required, and overall productivity. Poor lighting can be a health hazard - too much or too little light strains eyes and may cause eye discomfort (burning, etc.) and headaches. The amount of light we need varies and depends on: 1  Type of task being done (such as demands for speed and accuracy).  Type of surfaces (does it reflect or absorb light).