retinitis pigmentosa, glaucoma, cataracts, retinopathy, multiple sclerosis, dementia, presbyopia, macular, blindness, uveitis, arthritis, polycystic kidney disease, kidney disease, rheumatoid arthritis, retinal detachment, diabetes, degenerative, osteoporosis, retinoblastoma, nearsightedness, degenerative disorder, keratoconus, epilepsy, scleroderma, retinal, eyesight, retina, otosclerosis, liver disease, osteoarthritis, achromatopsia, malignant melanoma, melanoma, psoriasis, visual impairment, liver cancer, colon cancer, retinitis, lutein, cystic fibrosis, eye disease, lupus, naion, presbycusis, amblyopia, systemic lupus erythematosus, blepharitis, atherosclerosis, pemphigus, juvenile diabetes, xerostomia, muscular dystrophy, alopecia areata, neurofibromatosis, visual acuity, hypothyroidism, prostate cancer, acne vulgaris, cancer, myasthenia gravis, prosopagnosia, cardiovascular disease, emphysema, cirrhosis, kidney failure, heart disease, diabetics, disease, blepharospasm, temporal arteritis, gout, histiocytosis, pernicious anemia, photoreceptors, optic nerve, pterygium, pancreatic cancer, rosacea, phenylketonuria, neurological disorder, rheumatic disease, atopic eczema, hemolytic anemia, neuropathy, melasma, iron overload, zinc deficiency, multiple myeloma, genetic disorder, autoimmune disease, precancerous, iritis, schizophrenia, hemochromatosis, amyloidosis, lung cancer, hyperhidrosis, porphyria, diverticulosis, scoliosis, celiac disease, exudative