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A second watery red eye

Clinical history

Urgency
Routine

A student in a residence hall where several people have red eyes; gritty and watering for two days.

Examination
Diffuse bulbar and tarsal injection, watery discharge, follicles in the lower fornix, a preauricular node; the cornea may show subepithelial infiltrates after a week.

Presentation typical of this diagnosis, written for teaching. The source dataset provides the image and its label only, with no accompanying clinical record.

The study opens when you begin.

Read the history first and decide what you expect to find. Committing to an expectation before you look is most of what separates interpreting from noticing.

Step 1 of 3 · Read the history

Study: External photograph

Describe the abnormality and give the most likely diagnosis. You will locate the finding first; the answer options stay hidden until you have.