When ligaments are damaged, the knee joint may become unstable. Ligament damage often occurs from a sports injury. A torn ligament severely limits knee movement, resulting in the inability to pivot, turn, or twist the leg. Surgery is an option to repair a torn ligament if other medical treatment is not effective. There are 4 major ligaments in the knee. The ligaments in the knee connect the femur (thighbone) to the tibia (shin bone), and include the following: Anterior cruciate ligament (ACL).
Cataracts often form slowly and cause few symptoms. When symptoms are present, they can include: 1  Vision that is cloudy, blurry, foggy or filmy. 2  Sudden short sightedness. 3  Changes in the way you see colour, especially yellow. 4  Problems driving at night because oncoming headlights are distracting. 5  Problems with glare. 6  Double vision.
Cataracts can cause significant changes in vision. Cataracts occur not just in older adults, but in younger people too. Injury, certain medications, and genetic conditions can result in cataracts, even in the very young. It should be noted that not all vision changes are the result of cataract. Several of the above symptoms can be signs of very serious and life-threatening conditions. See an eye doctor to discuss your vision changes and any other symptoms you may be experiencing.