Related by context. Frequent words. (Click for all words.) 51 retinal implant 50 corneal ulcers 49 seizure disorders 48 Cochlear implants 48 Presbyopia 47 eyepieces 47 refractive error 47 nearsightedness 46 bionic eye 46 WalkAide 46 shutter glasses 46 muscular skeletal 46 visual impairments 46 pupil dilation 46 Amblyopia 45 magnifiers 45 glucose monitors 45 glasses 45 Cataract surgery 45 corrective lenses 45 refractive errors 45 bifocal 45 achy joints 45 diplopia 45 implanted cardiac 44 dental restorations 44 central retinal vein 44 orthoses 44 muscle spasticity 44 contractures 44 Bioness 44 bone deformities 44 ReWalk 44 eyesight 44 retinal imaging 44 binocular vision 44 hyperopia 44 transdermal patches 44 cerebral palsy mental retardation 43 osteo arthritis 43 mobility impairments 43 intraocular lens 43 hearing aids 43 ultrasound scanners 43 diopter 43 bionic ear 43 Macular degeneration 43 musculoskeletal diseases 43 lenses 43 audiological 43 iBOT 43 eyeglasses 43 Occupational therapists 43 Leber congenital amaurosis 43 eyeglass lenses 42 ergonomically friendly 42 Retinitis Pigmentosa 42 spherical aberration 42 photophobia 42 crystalens 42 muscle wastage 42 muscle degeneration 42 peripheral vision 42 osteoporosis arthritis 42 presbyopia 42 pulse oximeters 42 cardiac pacemakers 42 penlight 42 aerobic endurance 42 diabetic macular edema 42 non arteritic anterior ischemic 42 daytime drowsiness 42 contact lenses 42 neurostimulators 42 muscles tendons 42 cataracts 42 active shutter glasses 42 dilated eye 42 traumatic spinal cord 42 tinted lenses 42 communicate wirelessly 42 visual impairment 41 SpeechEasy 41 stereoscopic images 41 noninvasive diagnostic 41 headache nausea vomiting 41 intraocular pressure 41 infra red 41 Brand Contact Lenses 41 compression garments 41 prescription eyeglasses 41 blood oxygenation 41 monocular 41 lasik 41 cataract removal 41 stooped posture 41 assistive 41 neurostimulator 41 neuro rehabilitation 41 compression stockings 41 CPAP machine