Nokea
The client with chronic open-angle glaucoma is receiving timolol eye drops. Which evaluation finding would indicate to the nurse the treatment is working?
- A. Intraocular pressure 15 mm Hg
- B. Reduced peripheral vision
- C. Halos around lights
- D. Decrease in nausea and vomiting
Correct Answer: A
Rationale: Timolol is a beta-blocker that is used topically to decrease the flow rate of aqueous humor in the eye. As flow rate decreases, the intraocular pressure decreases. IOP of 12 to 21 mm Hg is within normal range. Reduced peripheral vision, halos around lights, and blurred vision are all symptoms of open-angle glaucoma. Nausea and vomiting are more likely to occur with acute angle-closure glaucoma.
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An older adult client is scheduled for cataract surgery and asks the nurse, 'Will I need to wear thick lenses after surgery?' Which is an appropriate response from the nurse?
- A. An implanted lens has replaced the need for corrective glasses.
- B. Contact lenses are preferred by most clients after this surgery.
- C. They can make corrective lenses much thinner now.
- D. No lens is necessary with cataract surgery.
Correct Answer: A
Rationale: Vision is usually restored after cataract surgery with an intraocular lens implant. Contact lenses can be used but can be burdensome for older adults. Corrective glass lenses can cause a distortion of peripheral vision and only one lens is required (over operative eye). To restore vision after cataract surgery, a lens is required.
An eighth-grade client visits the school nurse and reports having been to an eye doctor who identified an astigmatism and described it as a condition in which the eyeball is not shaped correctly. The client asks the nurse why both eyes look alike in the mirror if this is the case. What is the nurse's best response?
- A. Astigmatism means that the very front part of the eye is shaped differently than the very front part in most eyes.
- B. Astigmatism means that the overall shape of the eye resembles an olive more than most eyes.
- C. Astigmatism means that the inside of the eye is shaped differently than the inside of most eyes.
- D. Astigmatism means that the overall shape of your eye is shorter than most eyes.
Correct Answer: A
Rationale: Astigmatism is visual distortion caused by an irregularly shaped cornea. When the overall shape of the eye is like an olive, or more oblong, it results in myopia, not astigmatism, although both conditions may be present at once. The inside of the eye is not shaped differently in the client with an astigmatism. The overall shape of the eye being shorter results in hyperopia, not astigmatism.
While cleaning gutters, a client reports getting debris in the eyes. On inspection, the nurse notes no obvious foreign object. Which diagnostic evaluation technique would be most beneficial for this client?
- A. Administer fluorescein dye.
- B. Obtain an x-ray for orbital fractures.
- C. Assess intraocular movements.
- D. Assess with tonometer.
Correct Answer: A
Rationale: Fluorescein dye stains the eye and helps to identify minute foreign body or abrasions in the cornea. X-ray of the eye orbit would be done if a blow to the area preceded the visit. Assessment of intraocular movements (cranial nerves III, IV, and VI) would not be indicated. Tonometry is done for assessment of intraocular pressure and would not be indicated.
A nurse is caring for a client who has just been diagnosed with glaucoma. What teaching should the nurse include with this client?
- A. How long it will be necessary to wear dark glasses
- B. The importance of regular bowel habits
- C. What vegetables to eat
- D. When it will be possible to read again
Correct Answer: B
Rationale: Instructions for the client with glaucoma include the following: Obtain assistance from a family member, relative, or friend if having trouble instilling eye drops. Avoid all drugs that contain atropine. Check with physician or pharmacist before using any nonprescription drug. preparations for cold or allergy symptoms may contain an atropine-like drug. Maintain regular bowel habits; straining at stool can raise intraocular pressure (IOP). Avoid heavy lifting and emotional upsets (especially crying) because they increase IOP. Patients do not have to wear dark glasses. Vegetable consumption is not restricted. Reading does not increase IOP.
A client is diagnosed with blepharitis. What symptoms should a nurse monitor in this client?
- A. Patchy flakes clinging to the eyelashes
- B. A red pustule in the internal tissue of the eyelid
- C. Redness surrounding the conjunctival sac
- D. A halo around the pupil
Correct Answer: A
Rationale: Blepharitis is an inflammation of the lid margins. The nurse monitors visible patchy flakes clinging to the eyelashes and about the lids. The condition does not cause redness or a halo around the pupil. In case of a sty, the nurse would observe a red pustule in the internal tissue of the eyelid.