Allergic: Often papillary projections and pruritus. Characterized by vascular dilation, cellular infiltration and exudation.Conjunctivitis Episcleritis Subconjunctival hemorrhage Pain with/out blurring of vision Likely to have a sight-threatening condition: Acute glaucoma Iritis Corneal infections Causes of Red Eye No Pain and normal vision Likely to have self-limiting condition. Visual acuity Extraocular movements Pupil reactivity Pupil shape Photophobia Slit lamp examination with and without fluorescein * IOP measurements * Eyelid inspection with eversion Clinical: Physical Prior episodes Ophthalmologic history including eye sx Bilateral or unilateral Contact lens use Comorbid conditions Onset Visual changes Trauma Photophobia Pain Discharge, clear or colored Clinical: History Because these vessels are more superficial than the ciliary arteries, they produce more redness and constrict with vasoconstrictors.Conjunctival Injection: mainly affects the posterior conjunctival blood vessels.Indicates inflammation of the cornea, iris or ciliary body.Ciliary injection: involves branches of the anterior ciliary arteries.Should differentiate between ciliary and conjunctival injection.The red eye is caused by the dilation of blood vessels in the eye.

Key to management is recognizing cases with underlying disease that require consultation.Most cases benign and can be managed by PCP.Be able to differentiate between serious, vision-threatening conditions and benign conditions that cause a Red Eye.Barnabas Hospital Department of Pediatrics

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