Nokea
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.
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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.
A client with chronic open-angle glaucoma is now presenting with eye pain and intraocular pressure of 50 mm Hg. An immediate iridotomy is scheduled. Which explanation by the nurse describes the desired effects of this procedure?
- A. Reverse optic nerve damage
- B. Restore vision
- C. Improve outflow drainage
- D. To relieve pain
Correct Answer: C
Rationale: Laser iridotomy or standard iridotomy is a surgical procedure that provides additional outlet drainage of aqueous humor. This is done to lower the IOP as quickly as possible since permanent vision loss can occur in 1 to 2 days. Once optic nerve damage occurs, it cannot be reversed, and vision is not restored. Pain that occurs with rising IOP will be controlled once pressure is lowered through improved outflow drainage.
A nurse is assessing a client for a fracture to the bony orbit. What would the nurse document if the assessment for fracture was positive?
- A. There is excessive tearing.
- B. The client's vision is blurred.
- C. A rust ring is seen around the pupil.
- D. The client has diplopia.
Correct Answer: D
Rationale: If the bony orbit is fractured, the eyes may appear asymmetric, and the client has diplopia or double vision. Excessive tearing, presence of rust rings, or blurry vision do not indicate a fractured bony orbit.
A middle-aged client reports increasing difficulty reading newspaper print. Which of the following nursing explanations best describes this type of refractive error?
- A. Client is nearsighted.
- B. Lens has become cloudy and thick.
- C. Loss of elasticity of the lens.
- D. Floaters in the eye increase with age.
Correct Answer: C
Rationale: Presbyopia is a result of poor accommodation due to a loss of elasticity of the ciliary muscles and lens. Nearsighted refers to myopia. Cloudiness of lens is also associated with the aging process and does interfere with vision as a result of cataract formation. Floaters in the eyes are more apparent with aging but appear as dark spots.
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.