red eye

RA patient + red eye + severe deep boring pain + vessels do NOT blanch with phenylephrine → ?

scleritis

Painless/mild red eye + normal vision + superficial vessels blanch with phenylephrine → ?

EPISCLERITIS

Itchy/gritty red eye + discharge + crusted eyelids on waking + normal vision → ?

CONJUNCTIVITIS

Red eye + sharp foreign-body sensation + photophobia + ↓ vision + corneal ulcer → ?

KERATITIS

Severe painful red eye + blurred vision + halos + N/V + cloudy cornea + fixed mid-dilated pupil → ?

ACUTE ANGLE-CLOSURE GLAUCOMA

Deep boring pain → ?
Blanches → ?
Discharge/itch → ?
Foreign-body pain + corneal ulcer → ?
Halos + N/V + fixed pupil → ?

Deep boring → Scleritis
Blanches → Episcleritis
Discharge → Conjunctivitis
Corneal ulcer → Keratitis
Halos + N/V → Acute glaucoma