Many conditions, lifestyle choices, medicines, and diseases interfere with your ability to heal or fight infection. You may be at risk for a more serious problem from your symptoms if you have any of the following. Be sure to tell your doctor.

Conditions

• Wear contact lenses
• Have another eye condition that increases the risk of vision loss, such as:
  • Glaucoma or macular degeneration
  • Retinal detachment
  • Poor vision or blindness in one eye with injury to the other eye
• A problem or condition present since birth (congenital defect)
• Previous injury
• Previous surgery to injured area
• Normal vision is limited to one functional eye
• Surgery to remove the spleen

Lifestyle choices

• Alcohol abuse or withdrawal
• Drug abuse or withdrawal
• Smoking or other tobacco use

Medicines

• Blood-thinning medicines, such as warfarin, heparin, and aspirin
• Corticosteroids, such as prednisone
• Medicines to prevent organ transplant rejection
• Medicines that may affect the eye itself
• Medicines used to treat cancer (chemotherapy)
• Radiation therapy

Diseases

• Cancer
• Diabetes
• Hemophilia
• Human immunodeficiency virus (HIV) infection
• Idiopathic thrombocytopenic purpura (ITP)
• Kidney disease
• Lupus
• Lyme disease
• Multiple sclerosis
• Osteomyelitis
• Rheumatoid arthritis
• Sickle cell disease