A nurse is assessing a 65-year-old client with diabetes mellitus who reports gradual vision changes over the past year. Which assessment finding would be most concerning and require immediate ophthalmologic referral?

• 1 Complaint of difficulty reading small print that improves with reading glasses
• 2 Mild eye dryness and occasional irritation relieved by artificial tears
• 3 Gradual development of cloudy vision that improves in dim lighting
• 4 Sudden appearance of floaters, flashing lights, and curtain-like visual field defect ✓ 정답

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