Which test detects changes in both central and peripheral vision?

Visual field testing is the correct choice because it is specifically designed to assess a person's entire field of vision, which encompasses both central and peripheral areas. This type of testing evaluates how well a person can see in various directions and can identify visual field defects that may indicate underlying health conditions such as glaucoma, retinal diseases, or neurological disorders. The test often involves the patient looking straight ahead while responding to lights or objects presented at the edges of their vision, allowing for a comprehensive analysis of their visual field.

While refractometry primarily measures the eye's refractive errors for corrective lenses, fluorescein angiography is used to examine blood flow in the retina and is not focused on visual field changes. Perimetry testing is a term closely related to visual field testing; however, it typically refers to a specific method within that broader testing category. Thus, visual field testing is the most comprehensive choice for detecting changes across both central and peripheral vision.