Psoriasis can occur in several different forms. All types of psoriasis are caused when the infection-fighting white blood cells, called T-cells, malfunction. Under normal circumstances, T-cells fight against foreign invaders. However, in individuals with psoriasis, the T-cells actually attack the skin. The rash of psoriasis results from a combination of damage to the skin by T-cells, inflammation in the skin, and overproduction of new skin cells. To effectively treat your psoriasis, you must first identify the type of psoriasis you have.
Treatment research indicates that ocular symptoms may occur in approximately 10% of psoriasis patients. Ocular involvement is more common in men than in women. It is rare to have involvement of the eye prior to skin involvement of psoriasis. Ocular psoriasis can cause symptoms including inflammation of the eye, dryness and discomfort. When psoriasis affects the eyelids, scales may cover lashes. The edges of the eyelids may become red and crusty. If inflamed for long periods, the rims of the lids may turn up or down. If the rim turns down, lashes can rub against the eyeball and cause irritation. In a prolonged ocular episode vision impairment may occur.
