Related by context. Frequent words. (Click for all words.) 68 retina 66 corneas 61 optic nerve 59 retinal 55 skin 55 cartilage 54 blood vessels 54 cataract 53 tissue 52 meniscus 52 small intestine 52 spinal cord 51 scar tissue 51 esophagus 50 hair follicles 49 tendon 49 contact lenses 49 eyelids 49 ovary 49 cataracts 48 internal organs 48 uterus 48 liver 48 soft tissues 48 kidneys 47 aortic valve 47 eye socket 47 trachea 47 aorta 47 coronary artery 47 cervix 47 breast tissue 47 eyelid 46 ocular 46 prostate gland 46 LASIK 46 intestine 46 intestines 46 muscle tissue 46 thyroid gland 46 peripheral vision 46 soft tissue 45 collagen 45 kidney 45 brain 45 tendons 45 cataract surgery 45 pituitary gland 45 cortex 45 ligament 45 vital organs 45 glaucoma 45 implant 45 electrodes 45 gums 45 redness 45 sinus 45 gastrointestinal tract 45 lens 45 surgically 45 electrode 45 tissues 44 cyst 44 nerve cells 44 lesion 44 sinuses 44 pancreas 44 urethra 44 lenses 44 myelin 44 nerve fibers 43 airway 43 ligaments 43 windpipe 43 platelets 43 diabetic retinopathy 43 bowel 43 outer layer 43 pigmentation 43 coronary arteries 43 capillaries 43 skin graft 42 digestive tract 42 surgical procedure 42 cancerous 42 eyelashes 42 hairline 42 bone 42 ophthalmologist 42 cancerous tumors 42 sternum 42 membranes 42 ear canal 42 inner ear 42 nipple 42 macular degeneration 42 substrate 42 cancerous cells 42 scarring 42 connective tissue 42 tumor