Eyes & Ears Flashcards
What is diplopia
Double vision
What is glaucoma
Pressure buildup in eye can cause blindness
What is the positions test?
Moves eyes by following a finger or pen, one eye at a time at 30cm away
What is Snellen eye chart?
Chart where letters are large and small to test distance vision
What is tinnitus?
Ringing in ears
What is eye accommodation?
The ciliary muscle changing shape of the lens when the eye focuses on something
What is the ciliary body do?
Structure in the eye that releases transparent liquid (tears/aqueous humor) within the eye. Ciliary muscle are here too.
What are the meibomian glands?
Vertical glands near eyelashes, force of blinking causes oil to be excreted. The oil is the “staying power” or the tears that prevents tear evaporation. Can get MGD (meibomian gland dysfunction) if there is to much or to little oil in tear film
What is the orbicularis oculi muscle?
Muscle directly under surface of skin around eyes. It’s closes the eyelid, also helping to drain tears
What is the macula
Area of central vision
What is the posterior chamber of eye
Area between iris and lens
What is the anterior chamber of eye
Area between cornea and iris
Describe the iris
Coloured, circular muscular diaphragm
What is strabismus
Cross eyed
