Question

Significant loss of vision in a patient with hypertension can occur due to all of the following except:

• A. Occipital infarct
• B. Anterior ischemic optic neuropathy
• C. Papilloedema
• D. Retinal hemorrhage

Hint:

Ask which of the four changes actually damages vision-carrying tissue rather than just signaling severe disease.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
The question asks which of four eye or brain problems related to hypertension does NOT typically cause a significant loss of vision.

Step 2: Key Concept:
Severe or malignant hypertension can damage vision through several different routes: bleeding or infarction in the visual pathway of the brain, ischemic damage to the optic nerve itself, swelling of the optic disc from raised pressure, and bleeding within the retina. Not every one of these changes damages the part of the eye that actually processes fine, central vision.

Step 3: Detailed Explanation:
Occipital infarct damages the visual cortex at the back of the brain, which processes what the eyes see, so a stroke here causes a real and often severe visual field loss. Anterior ischemic optic neuropathy happens when blood flow to the optic nerve head is cut off, directly injuring the nerve fibers that carry vision to the brain, and this typically causes sudden and significant visual loss. Retinal hemorrhage, when it involves or threatens the macula (the central part of the retina responsible for sharp vision), can significantly reduce visual acuity. Papilloedema is swelling of the optic disc from raised pressure around the brain and is a feature of severe (grade 4) hypertensive retinopathy, but the swelling itself usually spares central vision, and most patients with papilloedema have normal or only mildly reduced visual acuity unless a separate complication such as hemorrhage or ischemia also occurs. Papilloedema is important as a marker of how severe the hypertension is, but on its own it is not a major direct cause of significant vision loss compared to the other three.

Step 4: Final Answer:
Papilloedema is the option that does not typically cause significant loss of vision on its own, so the correct answer is option (3).