Some disadvantages of contact lenses and their mitigation.
D003231:Conjunctivitis / Q000209:etiology; D003261:Contact Lenses / Q000009:adverse effects*; D003263:Contact Lenses, Hydrophilic / Q000009:adverse effects*; D005139:Eyeglasses; D006801:Humans; D010100:Oxygen; D011305:Presbyopia / Q000209:etiology; D011932:Reading
D010100:Oxygen