Which of the following symptoms is indicative of a detached retina, a condition considered a medical emergency?

A. Mild discomfort when moving the affected eye: Eye discomfort with movement is more commonly associated with conditions such as optic neuritis or eye muscle strain. It does not indicate retinal detachment, which usually presents with more acute visual changes not pain. B. Sudden onset of flashes of light and floaters in the field of vision: These symptoms are hallmark indicators of retinal detachment, caused by the retina pulling away from the underlying tissue. The sudden visual disturbances may also include a curtain-like shadow across the field of vision, making this a true medical emergency. C. Persistent eye redness and irritation: Redness and irritation are more characteristic of conjunctivitis, uveitis, or dry eye syndrome. While uncomfortable, these conditions are not emergencies in the same way retinal detachment is. D. Gradual onset of blurry vision: Gradual blurring of vision is associated with conditions such as cataracts, glaucoma, or macular degeneration. Unlike retinal detachment, these changes occur over time and do not present with sudden flashes or floaters.