PHM 123 Test 2
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PHM 123 Test 2
PHM 123 test
PHM 123 Test
What are the 2 main types of Ophthalmic preparations?
Solutions and suspensions – Ointments
What is the most important factor in ophthalmic preparations?
What was used to dilate women’s pupils for cosmetic reasons?
When did the concept of sterility become a standard for the preparation of eye solutions?
After World War II
What is the anatomy of the Eye?
Orbits, Tears, Sclera, Retina, Lens, Iris, Pupil
What are the bony pockets in the skull that protect the dorsal part of the eyeball?
What washes foreign debris from the surface and act as a lubricant?
What is known as the “white “ of the eye?
What is the innermost layer of the eye?
What is responsible for focusing the incoming light onto the retina?
What part of the eye is responsible for eye color?
What is the central opening of the iris that allows light to pass through?
What are the main common disorders of the eye?
Conjunctivitis, Ophthalmia neonatorum, Sty, and Glaucoa
What can be caused by a bacteria called “Pink Eye”?
What is a gonococcal infection of the eyes in newborns called?
What is an infection of the glands along the edge of the eye lid?
What causes increased intra-ocular pressure due to either the overproduction of aqueous humor or obstructed outflow?
In what type of hood should ophthalmic solutions be prepared in?
Laminar Air Flow Hood
What should be done if using a plastic “squeeze” bottle for the final container?
1)Place an alcohol moistened gauze to the front of the hood, taking care to touch only one corner
2)Using a second alcohol gauze, carefully remove the “dropper” stopper from the bottle and place it on the gauze pad
If adding more than 1 component, how many needles and syringes do you use.
1 syringe and 1 needle per component
What 2 auxiliary labels should be used for ophthalmic solutions?
For the Eye, and Shake Well
What is the most common and convenient method of placing medications into the eye?
What is the main disadvantage of eye solutions?
Medication is only in contact with the eye for a short period of time
What is the purpose of solution viscosity?
To increase the contact time between the eye and the medication
What is the pH level of Boric acid solution?
What is the preferred method of sterilization?
How do Membrane filters work?
They filter out particles in a solution better than a depth filter due to smaller finer size.
Where are membrane filters most commonly used?
In empty plastic “squeeze” bottles that come pre-sterilized and individually packaged from the manufacturer
When is Gas sterilizations used?
When medications are not heat resistant.
How is gas sterilization carried out?
By exposing the solution to ethylene oxide gas in the presence of moisture
How long should something be aerated for after sterilizing?
24 – 48 hours
What are the dangers of non sterile products?
Damage can vary from corneal ulcers to the loss of eyesight
What are the different types of bacteria that can be found in non sterile products?
Pseudomonas aeruginosa, Bacillus subtilis, Aspergillus fumigatus