ANSWERS SURE A+
✔✔A true allergic reaction can involve what symptoms? - ✔✔Itching, rash, difficulty
breathing, weak or rapid pulse
✔✔_______ drugs induce contraction of the iris sphincter. - ✔✔Miotic
✔✔A cycloplegic drug will blur vision at near due to temporary loss of _______. -
✔✔Accommodation
✔✔Name the three types of ophthalmic preparations placed directly in the eye? -
✔✔Solutions, suspensions, ointments
✔✔What is the main disadvantage of using an ophthalmic solution? - ✔✔The duration
of contact with the eye is short, therefore it requires frequent instillation.
✔✔What is the disadvantage of using an ophthalmic ointment? - ✔✔The ointment
reduces vision by creating a greasy film over the surface of the cornea, and is best used
at bedtime.
✔✔Name the five basic requirements for ophthalmic preparations? - ✔✔Tolerance,
tonicity, sterility, stability, and penetration
, ✔✔What is benzalkonium chloride - ✔✔A preservative commonly used in ophthalmic
preparations
✔✔What is the name of the most notorious organism found in ophthalmic preparations?
- ✔✔Pseudomonas Aeruginosa
✔✔Eye drops penetrate the eye directly through the _______ and into the anterior
chamber. - ✔✔Cornea
✔✔How should drops be properly instilled into a patient's eyes? - ✔✔Into the lower cul
de sac (lower fornix)
✔✔How are systemic medications administered? - ✔✔Orally, injection (subcutaneously
or intramuscularly), or intravenously.
✔✔What does the term idiosyncrasy refer to with ophthalmic drugs? - ✔✔An
idiosyncrasy is a bizarre, peculiar reaction to a drug that is not commonly seen, such as
tremors, excitability or even collapse.
✔✔What drug classification is contraindicated in patients with obstructive pulmonary
disease or cardiovascular disease? - ✔✔Beta Blockers
✔✔What symptoms are involved with an allergic reaction to a topically administered
drug? - ✔✔Edema of lids, redness, scaliness, vesicle formation, and oozing can occur
with a reaction to an ophthalmic preparation.
✔✔What are some of the side effects of long-term use of steroid drops? - ✔✔Rise in
intraocular pressure, cataracts, decreased wound healing, and decreased resistance to
infection.
✔✔What is the condition in which the eyes shift involuntarily in a rhythmic beating
motion? - ✔✔Nystagmus
✔✔Nystagmus indicates a problem with the _______ and not the _______. - ✔✔Brain,
extraocular muscles
✔✔What is stereopsis? - ✔✔Three-dimensional visual perception
✔✔What is the foremost objective test used to detect misalignments? - ✔✔Cover test
✔✔To perform the cover test, the patient fixates on a _______ target. - ✔✔Distant