Ch 17 Sense Organs: Eye & Ear

Why a Cochlear Implant

• Macular degeneration

• Severe deafness

• chronic stye

• ptosis of eyelid

Sensation of irregular or whirling motion either of oneself or of objects

• Meniere disease

• Vertigo

• Otosclerosis

• Tinnitus

Disorder of the labyrinth marked by elevation of ear fluids & pressure within the cochlea

• Meniere disease
• acoustic neuroma
• cholesteatoma
• mastoiditis

Hardening in the bony tissue of the ossicles of the middle ear

• tinnitus
• myringitis
• mastoiditis
• Otosclerosis

Noise in the ears without an external source

• vertigo
• labyrinthitis
• tinnitus
• suppurative otitis media

Inflammation of the labyrinth of the inner ear

• vertigo
• cholesteatoma
• ostosclerosisi
• labyrinthitis

Surgical repair of the eardrum

• tympanoplasty (myringoplasty)
• microtia
• presbycusis
• otitis media

Laser photocoagulation of the macula

• diabetic retinopathy
• ptosis of eyelid
• macular degeneration
• chronic stye

Incision & drainage of hordeolum

• cataracts
• scarred & torn cornea
• severe deafness
• chronic stye

Definition of hyperopia (hypermetropia)

(a)