Match each patient's clinical presentation with the most likely differential diagnosis for their acute vision loss.
- A 68-year-old woman with a history of atrial fibrillation develops abrupt, complete, and painless loss of vision in her right eye. Funduscopic examination reveals diffuse retinal pallor with a distinct cherry-red spot in the macula.Central retinal artery occlusion
- A 32-year-old woman reports worsening unilateral vision loss over the past 48 hours, accompanied by pain that is exacerbated by eye movement. Examination demonstrates a relative afferent pupillary defect.Optic neuritis
- A 75-year-old man describes a sudden onset of numerous dark floaters followed by a sensation of a dark curtain descending over his visual field. The affected eye is entirely painless and without erythema.Retinal detachment
- A 58-year-old man presents with severe right eye pain, blurred vision, and halos around lights after walking out of a dark movie theater. His right eye is deeply injected, and the pupil is fixed and mid-dilated.Acute angle-closure glaucoma
Answer
The presentations are matched to their diagnoses by identifying the presence or absence of pain and recognizing pathognomonic physical examination findings (e.g., cherry-red spot for central retinal artery occlusion, mid-dilated pupil for acute angle-closure glaucoma).
The accurate formulation of a differential diagnosis for acute vision loss relies on identifying key clinical features: the presence or absence of pain, the time course of the vision loss, and specific physical examination findings. Painful vision loss points to conditions like optic neuritis (pain with movement, afferent pupillary defect) and acute angle-closure glaucoma (fixed mid-dilated pupil, injected conjunctiva). Painless vision loss points to vascular and retinal issues like central retinal artery occlusion (pale retina, cherry-red spot) or retinal detachment (floaters, visual field 'curtain'). Properly categorizing these presentations leads to the correct diagnosis.
Step-by-Step Solution
Key Concept
Differentiating causes of acute vision loss based on the presence of pain and specific physical examination findings.