The following discusses the main types of JIA. Arthritis research in the UK has more information on different types of juvenile idiopathic arthritis. Glasses, also known as eyeglasses or spectacles, are devices consisting of glass or hard plastic lenses mounted in a frame that holds them in front of a person's eyes, typically using a bridge over the nose and arms which rest over the ears. Glasses are typically used for vision correction, such as with reading glasses and glasses used for nearsightedness. Safety glasses provide eye protection against flying debris for construction workers or lab technicians; these glasses may have protection for the sides of the eyes as well as in the lenses. Some types of safety glasses are used to protect against visible and near-visible light or radiation. Glasses are worn for eye protection in some sports, such as squash. Glasses wearers may use a strap to prevent the glasses from falling off during movement or sports. Wearers of glasses that are used only part of the time may have the glasses attached to a cord that goes around their neck, to prevent the loss of the glasses. Look no further than the Chinese herbs of Ginseng and Ginkgo Biloba which protect the blood vessels, while ensuring healthy blood flow around the body and to the extremities such as the genitals. This medication is prescribed to deal with cancer of the breast that has metastasized to other areas of the body. It is also utilized in combination with radiation therapy and surgery to help treat cancer of the breast as well as to help alleviate problems with cancer of the breast in high-risk patients. It interferes with estrogen's effects inside the breast growth to bar breast cancer's growth. This medication can also be used being an infertility to treatment by inducing ovulation.