Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content ++|PrintDifferential Diagnosis of Common Causes of the Inflamed Eye1Acute ConjunctivitisAcute Iritis2Acute Glaucoma3Corneal Trauma or InfectionIncidenceExtremely commonCommonUncommonCommonDischargeModerate to copiousNoneNoneWatery or purulentVisionNo effect on visionOften blurredMarkedly blurredUsually blurredPainMildModerateSevereModerate to severeConjunctival infectionDiffuse; more toward fornicesMainly circumcornealMainly circumcornealMainly circumcornealCorneaClearUsually clearSteamyChange in clarity related to causePupil sizeNormalSmallModerately dilated and fixedNormal or smallPupillary light responseNormalPoorNoneNormalIntraocular pressureNormalUsually normal but may be elevatedMarkedly elevatedNormalSmearCausative organismsNo organismsNo organismsOrganisms found only in corneal infection1Other less common causes of red eyes are noted in the text.2Acute anterior uveitis.3Angle-closure glaucoma. Your Access profile is currently affiliated with [InstitutionA] and is in the process of switching affiliations to [InstitutionB]. Please select how you would like to proceed. Keep the current affiliation with [InstitutionA] and continue with the Access profile sign in process Switch affiliation to [InstitutionB] and continue with the Access profile sign in process Get Free Access Through Your Institution Learn how to see if your library subscribes to McGraw Hill Medical products. Subscribe: Institutional or Individual Sign In Error: Incorrect UserName or Password Username Error: Please enter User Name Password Error: Please enter Password Sign in Forgot Password? Forgot Username? Sign in via OpenAthens Sign in via Shibboleth You already have access! Please proceed to your institution's subscription. Create a free profile for additional features.