A 70-year-old patient presents with complaints of visual disturbances. Upon assessment, the patient reports experiencing difficulty reading, seeing faces clearly, and needing more light when performing tasks. What is the most likely clinical manifestation of macular degeneration?
Night blindness
Central vision loss
Peripheral vision loss
Double vision
The Correct Answer is B
Choice A Reason:
Night blindness, or difficulty seeing in low light, is not a primary symptom of macular degeneration. This condition primarily affects the macula, the central part of the retina responsible for sharp, central vision. Night blindness is more commonly associated with conditions like retinitis pigmentosa or vitamin A deficiency.
Choice B Reason:
Central vision loss is the hallmark of macular degeneration. This condition leads to the deterioration of the macula, causing blurred or lost central vision while peripheral vision remains intact. Patients often report difficulty reading, recognizing faces, and performing tasks that require fine visual detail3.
Choice C Reason:
Peripheral vision loss is not typically associated with macular degeneration. This condition affects the central part of the retina, leaving peripheral vision largely unaffected. Peripheral vision loss is more commonly seen in conditions like glaucoma.
Choice D Reason:
Double vision, or diplopia, is not a characteristic symptom of macular degeneration. This condition affects the clarity of central vision but does not typically cause double vision. Double vision can result from issues with the eye muscles or nerves, such as in cases of strabismus or cranial nerve palsies.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason:
Scleral buckling is a surgical procedure used to treat retinal detachment by indenting the wall of the eye. This technique involves placing a silicone band (buckle) around the sclera (the white part of the eye) to push the wall of the eye against the detached retina. This helps to reattach the retina and prevent further detachment. Scleral buckling is effective in treating many types of retinal detachments and is a common procedure for this condition.
Choice B Reason:
Photorefractive keratectomy (PRK) is a type of refractive surgery used to correct vision problems such as myopia, hyperopia, and astigmatism. It involves reshaping the cornea using a laser but is not used to treat retinal detachment. PRK does not involve indenting the wall of the eye or addressing issues with the retina.
Choice C Reason:
Vitrectomy is a surgical procedure that involves removing the vitreous gel from the eye to treat various eye conditions, including retinal detachment. While vitrectomy can be used to treat retinal detachment, it does not involve indenting the wall of the eye. Instead, it allows the surgeon to access the retina and perform necessary repairs.
Choice D Reason:
Intravitreal injection involves injecting medication directly into the vitreous cavity of the eye. This procedure is used to treat conditions such as macular degeneration, diabetic retinopathy, and retinal vein occlusion. It is not used to treat retinal detachment by indenting the wall of the eye.
Correct Answer is D
Explanation
Choice A Reason:
Prescription glasses can help improve vision in the early stages of cataracts by compensating for changes in the lens. However, they do not treat the underlying condition. As cataracts progress, glasses become less effective, and surgery becomes necessary to restore clear vision.
Choice B Reason:
Laser therapy is not used to dissolve cataracts. Instead, it is sometimes used after cataract surgery to treat a condition called posterior capsule opacification, which can occur months or years after the initial surgery. This procedure, known as YAG laser capsulotomy, helps to clear the vision but does not address the primary cataract.
Choice C Reason:
Anti-inflammatory eye drops can be used to manage inflammation and discomfort associated with cataracts or cataract surgery. However, they do not treat or remove the cataract itself. These drops are often part of the post-operative care following cataract surgery.
Choice D Reason:
Cataract surgery is the most effective treatment for cataracts. During the procedure, the clouded natural lens is removed and replaced with a clear artificial lens called an intraocular lens (IOL). This surgery significantly improves vision and is considered the definitive treatment for cataracts.
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