Chapter 2: Common Diseases and Disorders Flashcards
Cataract causes the lens to become less elastic, takes on a yellowish hue and loses its transparency, What is the only way to restore clear vision?
Through vision.
How does Cataract surgery is done?
The opaque lens is removed and replaced with an implant.
What is Glaucoma?
An increase in the fluid pressure within the eye.
If the pressure of Glaucoma is so excessive that distortion of the retina and optic nerve can lead to?
Partial or complete blindness.
Medical Therapy of Glaucoma consist of?
Eyedrops and oral medication.
In Glaucoma surgery may be necessary to create a pathway to?
Drain fluid from the inside the eye.
Risk factors for developing Glaucoma include?
Diabetes, hypertension and increased age.
what is Vertigo?
An illusion of movements that can cause dizziness, cold sweat, nausea and vomitinf.
What is the most common cause of Vertigo?
Motion sickness form riding cars, boats or planes.
Vertigo results when processing centers in the brain receive conflicting sensory information from?
The eyes and inner ear.
What usually control the symptoms of Vertigo?
Medications taken orally or in a transdermal patch.
what is Presbycusis?
An age-related hearing loss.
Presbyusis can be associated with?
Damage to nerve pathways that carry sound information to the brain.
What is the first sign of Presbycusis?
Difficulty understanding whay people are saying.
As the hearing loss worsens, it becomes difficult to?
Hear more than just speech.