The advanced practice nurse (APRN) is assessing the functional status of an older adult in the primary care office. While assessing vision the patient reports difficulty in seeing while reading. What is the most appropriate next step?

Visual changes in the older adult population are frequently related to age-associated physiological transitions or the onset of chronic degenerative conditions. Presbyopia, characterized by a loss of lens elasticity, commonly manifests as difficulty with near-vision tasks such as reading. However, a comprehensive assessment by the advanced practice nurse is required to differentiate between normal age-related changes and more serious pathologies like cataracts, macular degeneration, or glaucoma, which can significantly impact functional independence and safety. Rationale: A. Ordering an MRI of the head with contrast is a highly invasive and expensive imaging study that is not indicated for a routine report of difficulty reading. MRIs are typically reserved for neuro-ophthalmic concerns, such as suspected intracranial tumors, strokes, or sudden unexplained visual field losses that suggest a central nervous system origin. B. Performing an ophthalmoscopic visual examination with dimmed lights is the most appropriate next step to assess the internal structures of the eye. Dimming the lights facilitates natural pupillary dilation, allowing the APRN to better visualize the red reflex, optic disc, retinal vessels, and the lens. This assessment helps identify the presence of lens opacification (cataracts) or changes in the fundus that could explain the patient's symptoms before determining if a more specialized referral or further diagnostic testing is necessary. C. Testing each eye with a Snellen chart without corrective lenses would provide an inaccurate assessment of the patient's current functional visual acuity. The Snellen chart is primarily used to measure distance vision (far-point acuity), whereas the patient’s complaint is specific to reading, which involves near-point acuity. Furthermore, vision should generally be tested with the patient's current corrective lenses (the "best-corrected" vision). D. Referring the patient to ophthalmology may eventually be necessary, but a primary care assessment should first include a focused visual examination. Immediate referral without conducting a basic in-office evaluation may delay identification of simple or common age-related problems. Initial assessment findings help determine the urgency and type of specialist referral needed.