Other Causes of pink eye:
o Shingles (Called also Herpes zoster, Zona, Zoster)
o Relapsing Polychondritis
o Inflammatory Bowel Disease
o Pterygium:
A triangular fleshy mass of thickened conjunctiva occurring usually at the inner side of the eyeball, covering part of the cornea, and causing vision disturbance.
o Psoriatic Arthritis:
A severe form of arthritis marked by inflammation, psoriasis of the skin or nails, and a negative test for rheumatoid factor; called also Psoriasis Arthropathica.
o Reactive Arthritis:
Acute arthritis that sometimes develops following a bacterial infection (e.g. after infection with genera Shigella, Salmonella, or Chlamydia).
o Rheumatoid Arthritis (RA):
A chronic autoimmune disease marked especially by pain, stiffness, inflammation, swelling, and sometimes destruction of joints;called also atrophic arthritis.
o Sarcoidosis:
A chronic disease of unknown cause that is characterized by the formation of nodules resembling true tubercles especially in the lymph nodes, lungs, bones, and skin.
o Sjogren's Syndrome (Sicca syndrome):
A chronic autoimmune disease in which white blood cells attack the moisture-producing glands. The hallmark symptoms are dry eyes and dry mouth, but it is a systemic disease, affecting many organs and may cause fatigue.
o Systemic Lupus Erythematosus:
A connective tissue disease of unknown cause that occurs chiefly in women characterized by fever, skin rash, arthritis, acute hemolytic anemia, small hemorrhages in the skin and mucous membranes, inflammation of the pericardium, and in serious cases by involvement of the kidneys and central nervous system.
o Wegener's Granulomatosis:
Vasculitis of small vessels affecting the respiratory tract and kidney.
o Ankylosing Spondylitis:
Rheumatoid arthritis of the spine ;called also Rheumatoid spondylitis.
o Behcet's Syndrome:
A disease with unkonwn cause that is marked by ulcerative lesions of the mouth and genitalia and inflammation of the eye (as uveitis and iridocyclitis), and occurring especially in young men; called also Behcet's disease.