Correct Answer:
B) Acute Angle-Closure Glaucoma
The diagnosis is confirmed by the classic pentad of symptoms and signs:
- Sudden Onset: Often triggered by pupillary dilation (mydriasis) in dark environments.
- Corneal Edema: Described as “steamy” or “hazy,” leading to the perception of halos.
- Physical Signs: A mid-dilated, non-reactive, vertically oval pupil and a “stony hard” eye due to severely elevated IOP.
- Systemic Symptoms: Nausea and vomiting are common due to the oculocardiac reflex.
- Predisposition: Gonioscopy of the fellow eye showing a narrow angle is a hallmark finding, as this is often a bilateral anatomical predisposition.
