Which of the following is not a sign or symptom of hypertensive retinopathy?

In the context of hypertensive retinopathy, the condition primarily affects the blood vessels in the retina due to high blood pressure, leading to various visual disturbances. Blurred vision is a common symptom as the damage to the retinal blood vessels can impair vision by affecting the macula, the area responsible for sharp vision. Headaches are commonly associated with hypertension itself and can occur alongside the changes in the eyes, reflecting the overall effects of high blood pressure in the body.

Hypertension, the condition itself, is inherently tied to hypertensive retinopathy, as it is the underlying cause leading to the retinal changes and symptoms. In contrast, nausea is not typically linked to the direct effects of hypertensive retinopathy. While nausea can occur in various medical conditions, it is not a primary symptom or sign related specifically to the eye changes caused by hypertension. Therefore, identifying nausea as not being associated with hypertensive retinopathy is correct, as it does not relate to the ocular manifestations of high blood pressure.