Author Question: What procedure removes scar tissue from the cornea with an excimer laser? a. Refractive ... (Read 50 times)

awywial

  • Hero Member
  • *****
  • Posts: 577
What procedure removes scar tissue from the cornea with an excimer laser?
 
  a. Refractive keratoplasty
  b. Phototherapeutic keratoplasty
  c. Radial keratotomy
  d. Keratophakia

Question 2

What is removal of the entire eyeball and the severing of the muscular attachments called?
 
  a. Innervation
  b. Enucleation
  c. Exenteration
  d. Extirpation



asdfasdf

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

ANS: B
In phototherapeutic keratoplasty (PTK), scar tissue is removed from the cornea with an excimer laser. PTK restores vision that has been blocked by scars from infection, injury, or an inherited condition.

Answer to Question 2

ANS: B
Enucleation is the complete removal of the eyeball and the severing of the muscular attachments. The muscle stumps are preserved in this procedure. A pocket can be formed for an artificial eye.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

awywial

  • Hero Member
  • *****
  • Posts: 577

asdfasdf

  • Sr. Member
  • ****
  • Posts: 339

 

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

For a complete list of videos, visit our video library