When Is Ophtho Discussion Reasonable for Painful Red Eye?

Quick answer

Painful Red Eye Triage

• Ophtho discussion is reasonable when painful red eye is paired with decreased visual acuity, photophobia, corneal opacity/staining, distorted pupil, IOP concern, contact lens ulcer risk, trauma, recent surgery, herpes/keratitis concern, or severe symptoms. [1]
• Basic exam details make the call better: OD/OS visual acuity, APD, lids/lashes/conjunctivae, fluorescein or Wood's lamp findings, and IOP only when safe.
• Mild conjunctivitis-pattern red eye with preserved vision, no severe pain/photophobia, no corneal involvement, no contact lens risk, no immunocompromise, and no recent surgery is usually a lower-yield Ophtho discussion.

Ophtho discussion is reasonable when

Higher-Risk Features

• Vision is decreased, asymmetric, or worse than baseline.
• Severe pain, photophobia, abnormal pupil, halos/nausea, or pressure concern is present.
• Corneal opacity, epithelial defect, infiltrate, hypopyon, or contact lens-associated pain is present.
• There is trauma, chemical exposure, recent eye surgery/procedure, herpes/keratitis concern, or orbital signs.

Workup usually comes first when

Better First Step

• The acuity, visual acuity, APD/pupil exam, contact lens status, trauma/surgery history, and fluorescein findings are not yet known.
• IOP would clarify a pressure question and is safe to obtain. If open globe is possible, avoid pressure on the eye or IOP measurement.
• The presentation is mild conjunctivitis-like and no red flags are present; outpatient/primary care or local pathway may be the better first route.

Common pitfall

Avoid Calling It Just Red Eye

Translate red eye into the specific risk feature: pain, photophobia, vision change, cornea, pupil, pressure, contact lens, trauma, surgery, herpes/keratitis, or orbit. That framing is more useful than the label alone.