Artificial Tears & Contact Solution

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  1. What are the three layers of the tear film?
    Mucin, Aqueous, Oil
  2. Is the mucin layer hydrophilic or hydrophobic?
  3. Where does the mucin come from?
    conjunctival goblet cells
  4. Where does the aqueous come from?
    lacrimal gland
  5. Is the oil layer hydrophilic or hydrophobic?
  6. Where does the oil come from?
    meibomian gland
  7. Lysozyme is composed of what?
    carbohydrates, lipids, electrolytes, proteins, lactoferrin, vitamins
  8. What are basal tears?
    normal tears that keep eye lubricated
  9. What are reflex tears?
    caused by irritation
  10. What are emotional tears?
    crying or weeping, an emotional state
  11. What is KCS?
    Keratoconjunctivitis Sicca
  12. KCS is caused by what?
    old age, environment, dry, windy climate, medications
  13. What happens when there is inadequate mucin?
    tears run off the eye and do not adhere to surface
  14. What happens when there is inadequate aqueous?
    causes dryness; most common type of KCS
  15. What happens when there is inadequate oil?
    tears evaporate rapidly
  16. What are signs & symptoms of dry eyes?
    reduced VA, thickened cornea, excessive reflex tearing
  17. What is TBUT and what is it used for?
    tear break up time and used with fluorescein dye to the eye and pt's cornea can be seen under the slit lamp for how long it takes for the dry spots to appear
  18. What is Meibomian Gland Dysfunction?
    insufficient lipids is produced to hold aqueous on the eye to prevent evaporation
  19. What are the most used OTC drugs?
    artificial tears
  20. Refresh tears are made of what?
  21. What are in visine tears?
    polyethylene gylcol
  22. Murine tears contain what?
    polyvinyl alcohol-povidone
  23. What are in bion tears?
  24. What are two types of nourishing drops?
    viva drops and thera tears
  25. What do the nourishing drops do?
    match the electrolyte balance of your eye
  26. Restasis is a type of what drug?
  27. When and who was the first to describe and sketch ideas for contact lens?
    1508- Leonardo Davinci
  28. Who was the first to suggest placing lens directly on the eye to the correct vision?
    1632- Rene Descartes
  29. Who was the first to propose in making a mold wearers eye so contact lenses can be made to conform perfectly to the front of the eye?
    1827- Sir John Herschel
  30. Who was the first to produce the first glasses contact lens?
    1887- F.E. Muller
  31. Who was the first in using glass contact lenses to correct vision?
    1888- A.E.Fick & Optician E.Kalt
  32. Who was the first to introduce an improved method to take mold of living eues so contact lenses can be made to fit the eye?
    1929- Joseph Dallos
  33. Hydroxypropylmethycellulose and hydroxyethyl cellulose are used for what?
    viscous coupling agent for gonioscopy or contact funduscopy. creates an optical cushion between lens and cornea
  34. Sterile Intraocular Irrigating Solution is considered what?
    balanced salt solution, BSS and Endodol
  35. Balanced salt solution, BSS are used for what?
    to protect the intraocular tissues during surgery and maintain space and cellular function
  36. What is the pH of ocular tissue?
  37. What happens if the pH is <7 or >8?
    can lead to death of the cells
  38. What is Navstel?
    balanced salt ophthalmic solution with hydroxymethylcellulose, dextrose and glutathione
  39. What is Navstel used for and when did the FDA approve it?
    2008 and surgical procedures requiring infusion of the eye
  40. Extraocular irrigating solution is used for what?
    foreign body removal, general cleansing of ocular surface, nasolacrimal irrigation, and removal of coupling solutions
  41. What are some types of extraocular irrigating solutions?
    eye stream, eye wash
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Artificial Tears & Contact Solution
2013-03-12 03:04:45
Artificial tears contact solution

A&P Lesson 11
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