**Question:** All of the following cause visual loss in hypertension EXCEPT:

A. Glaucoma
B. Retinopathy
C. Optic neuritis
D. Macular edema

**Core Concept:** Hypertension is a common cardiovascular disease characterized by elevated blood pressure. The long-term effects of hypertension on the eye can lead to various complications affecting the visual system. These complications can be broadly categorized into ischemic, hemorrhagic, and compression events.

**Why the Correct Answer is Right:** Glaucoma, specifically primary open-angle glaucoma (POAG), is a condition characterized by elevated intraocular pressure (IOP) which can lead to optic nerve damage and subsequent visual loss. However, hypertension itself does not directly cause IOP elevation, and therefore, glaucoma is not a direct consequence of hypertension.

**Why Each Wrong Option is Incorrect:**

**A. Glaucoma:** As explained above, hypertension does not directly cause glaucoma, making this the incorrect option.

**B. Retinopathy:** Hypertension can lead to retinal microangiopathy, which includes retinal hemorrhages and capillary non-perfusion. This complication is associated with hypertension, making retinopathy the incorrect option.

**C. Optic neuritis:** Optic neuritis is an inflammation of the optic nerve head and optic nerve, often due to infections, demyelinating disorders, or autoimmune diseases. Hypertension itself does not lead to optic neuritis, making this the incorrect option.

**D. Macular edema:** Macular edema is swelling of the macula due to increased capillary permeability, often seen in conditions like diabetes, retinal vein occlusion, or uveitis. Hypertension can contribute to macular edema in these conditions, but hypertension itself does not directly cause macular edema.

**Clinical Pearl:** Hypertension can lead to various ocular complications such as retinopathy, optic neuritis, and maculopathy, but it is essential to differentiate these complications from their specific causes (e.g., infections, autoimmune disorders, diabetes, etc.). By understanding the underlying causes and mechanisms, we can effectively diagnose and manage such complications in patients with hypertension.