Visual Acuity

Audiometer

Opthalmoscope

Otoscope

Ophthalmologist

Optometrist

Optician

Myopia
(nearsightedness)

Hyperopia
(farsightness)

Presbyopia

Astigmatism

Snellen Chart

Performing Visual Acuity Testing

Jaeger Chart

Ishihara Method

Contrast Sensitivity Testing

Pelli-Robson Chart

Vision Tester

Titmus Vision Tester

Eye Instillation

Eye Irrigation

Auricle or Pinna

External Auditory Canal

Tympanic Membrane

Otorhinolarygnologist

Audiologist

Conduction Loss

Nerve Deafness

Degree of Hearing Loss

Audiometry

Tympanometry

Tympanmeter

Ear Instillation

Ear Irrigation