Which condition requires urgent evaluation due to eye pain and potential vision loss?

Which condition requires urgent evaluation due to eye pain and potential vision loss?

• A. Conjunctivitis
• B. Acute angle-closure glaucoma
• C. Dry eye
• D. Migraine

Answer: (B)

Sudden, severe eye pain with vision changes points to an urgent rise in intraocular pressure from blockage of the eye’s drainage angle, known as acute angle-closure glaucoma. This condition can cause rapid and permanent vision loss if not treated quickly, so it requires immediate evaluation by an eye specialist. The eye may appear red, with halos around lights, a headache or nausea, and a pupil that is mid-dilated and not reacting well to light—signs that set it apart from non-emergency red-eye conditions. Conjunctivitis, in contrast, usually presents with eye discharge, itching, and irritation rather than sudden, severe pain or rapid vision change. Dry eye causes irritation and intermittent tearing without dramatic pressure rises or urgent vision risk. Migraine can involve eye pain and light sensitivity but does not inherently cause the dangerous, rapid increase in intraocular pressure that threatens vision.

Sudden, severe eye pain with vision changes points to an urgent rise in intraocular pressure from blockage of the eye’s drainage angle, known as acute angle-closure glaucoma. This condition can cause rapid and permanent vision loss if not treated quickly, so it requires immediate evaluation by an eye specialist. The eye may appear red, with halos around lights, a headache or nausea, and a pupil that is mid-dilated and not reacting well to light—signs that set it apart from non-emergency red-eye conditions.

Conjunctivitis, in contrast, usually presents with eye discharge, itching, and irritation rather than sudden, severe pain or rapid vision change. Dry eye causes irritation and intermittent tearing without dramatic pressure rises or urgent vision risk. Migraine can involve eye pain and light sensitivity but does not inherently cause the dangerous, rapid increase in intraocular pressure that threatens vision.