A 62-year-old patient presents to the emergency department with the complaint of a sudden onset of 'floaters' in their visual field, accompanied by flashes of light and a sensation of a curtain being drawn over the affected eye. There is no reported pain. Based on the presentation, which of the following is the most likely diagnosis?
Retinal detachment
Papilledema
Acute angle-closure glaucoma
Cataract formation