Eye Anatomy
Gel like fluid in the middle of the eye
What is vitreous humor?
The ear drum is also called
Tympanic membrane
The lacrimal apparatus is this type of gland -
Exocrine gland
This disease is caused by inflammation of the lining of the eyelids
Conjunctivitis
Name one cause of tinitis
Damaged hair cells in the organ of Corti, turbulence in carotid artery or TMJ dysfunction
Layer of the eye containing blood vessels
What is the choroid?
This part of the ear amplifies sound waves
Middle ear (auditory ossicles)
The smallest bones in the body are called
Auditory ossicles (malleus, incus, stapes)
Mark comes to your office and c/o a blind spot in the center of his field of vision.
Damaged auditory nerves, cochlea, or temporal lobe. Can be treated by a cochlear implant
Sensorineural deafness
Bends light and focuses it on the retina
The lens
This part of the ear contains perilymph and endolymph that sound waves travel through
Cochlea
If infection backs up or clogs this structure, otitis media can occur
Eustachian tube
Jan comes to the eye doctor and complains of seeing white spots instead of a clear image. What disease does she likely have?
Cataracts
2 parts! This structure is located next to the semicircular canals....disruption of the otoliths in it can lead to what disease?
Vestibule & Vertigo
These photoreceptor cells are color sensitive.
Cones
The outer ear consists of the
Auricle (pinna), external auditory meatus
The six extrinsic muscles of the eye
Lateral Rectus, Medial Rectus, Superior Rectus, Inferior Rectus, Superior Oblique, Inferior Oblique
Eye is shorter and focus is behind the retina
Small children often get tubes placed in their tympanic membrane due to repeated instances of this condition
Otitis media or middle ear infection
This area of the eye contains a high concentration of photoreceptor cells
Fovea Centralis
The two nerves leaving the ear and traveling to the brain that deal with hearing and balance are called
Why does looking at screens cause eye strain?
Blink less, less lubrication & dry eyes
Pixels vs printed text
The eye is most relaxed when viewing distant objects, and this state is called "totally relaxed" vision. When focusing on close objects, the eye is in a state of accommodation, and the closest vision is termed "fully accommodated" (the ciliary muscle contracts to make lens thicker to focus on closer objects)
Lazy eye
Strabismus
This is a treatment for sensorineural deafness that can be put into the side of the head behind the ear, it directly stimulates the auditory nerve with signals
Cochlear implant