Entropion

This is different from when an extra fold of skin on the lower eyelid causes lashes to turn in towards the eye (epiblepharon).[2] In epiblepharons, the eyelid margin itself is in the correct position, but the extra fold of skin causes the lashes to be misdirected.Entropion can also create secondary pain of the eye (leading to self trauma, scarring of the eyelid, or nerve damage).[4] Symptoms of entropion include: Treatment is a relatively simple surgery in which excess skin of the outer lids is removed or tendons and muscles are shortened with one or two stitches.[9] Shar Peis, who often are affected as young as two or three weeks old, respond well to temporary eyelid tacking.
Canine entropion
Vet.ophthalmologist Yastrebov O. St.Peterburg, Russia
Feline entropion
trichiasistrachomaSpecialtyMedical geneticsmedical conditioneyelideyelashescorneageneticepiblepharonscarringSymptomsSensitivityEye wateringvisionsurgerypurebredsChow ChowShar PeiSt. BernardCocker SpanielEnglish Springer SpanielWelsh Springer SpanielLabrador RetrieverCavalier King Charles SpanielNeapolitan MastiffBull MastiffGreat DaneIrish SetterShiba InuRottweilerPoodleBloodhoundenophthalmosbrachycephalicPersianMaine CoonSurgicalorbicularis oculisuturedShar PeisEctropionDiseasesDBMedlinePluseMedicineDiseases of the human eyeAdnexaChalazionBlepharitisMeibomian gland dysfunctionLagophthalmosBlepharochalasisPtosisBlepharophimosisXanthelasmaAnkyloblepharonEyelashMadarosisDistichiasisTrichomegalyLacrimal apparatusDacryoadenitisEpiphoraDacryocystitisXerophthalmiaExophthalmosOrbital cellulitisOrbital lymphomaPeriorbital cellulitisConjunctivaChemosisConjunctivitisallergicPterygiumPseudopterygiumPingueculaSubconjunctival hemorrhageFibrous tunicScleraScleritisEpiscleritisKeratitisherpeticacanthamoebicfungalExposurePhotokeratitisCorneal ulcerThygeson's superficial punctate keratopathyCorneal dystrophyFuchs'MeesmannCorneal ectasiaKeratoconusPellucid marginal degenerationKeratoglobusTerrien's marginal degenerationPost-LASIK ectasiaKeratoconjunctivitisCorneal opacityCorneal neovascularizationKayser–Fleischer ringHaab's striaeArcus senilisBand keratopathyVascular tunicCiliary bodyUveitisIntermediate uveitisHyphemaRubeosis iridisPersistent pupillary membraneIridodialysisSynechiaChoroidChoroideremiaChoroiditisChorioretinitisFocal choroidal excavationPolypoidal choroidal vasculopathyCataractCongenital cataractChildhood cataractAphakiaEctopia lentisRetinaRetinitisCytomegalovirus retinitisRetinal detachmentPosterior vitreous detachmentRetinoschisisOcular ischemic syndromeCentral retinal vein occlusionCentral retinal artery occlusionBranch retinal artery occlusionRetinopathydiabetichypertensivePurtscher'sof prematurityBietti's crystalline dystrophyCoats' diseaseSickle cellphoticMacular degenerationRetinitis pigmentosaRetinal haemorrhageCentral serous retinopathyMacular edemaEpiretinal membraneVitelliform macular dystrophyLeber's congenital amaurosisBirdshot chorioretinopathyGlaucomaOcular hypertensionPrimary juvenile glaucomaFloaterLeber's hereditary optic neuropathyOcular hypotonyRed eyeGlobe ruptureKeratomycosisPhthisis bulbiPersistent fetal vasculaturePersistent tunica vasculosa lentisFamilial exudative vitreoretinopathyVogt-Koyanagi-Harada diseasePathwaysOptic nerveOptic discOptic neuritisoptic papillitisPapilledemaFoster Kennedy syndromeOptic atrophyOptic disc drusenOptic neuropathyIschemicanterior (AION)posterior (PION)arteritic anterior (AAION or arteritic AION)non-arteritic anterior (NAION)Kjer'sLeber's hereditaryToxic and nutritionalStrabismusExtraocular musclesBinocular visionAccommodationOphthalmoparesisChronic progressive external ophthalmoplegiaKearns–Sayre syndromepalsiesOculomotor (III)Fourth-nerve (IV)Sixth-nerve (VI)EsotropiaExotropiaHypertropiaHeterophoriaEsophoriaExophoriaCyclotropiaBrown's syndromeDuane syndromeConjugate gaze palsyConvergence insufficiencyInternuclear ophthalmoplegiaOne and a half syndromeRefractionRefractive errorHyperopiaMyopiaAstigmatismAnisometropiaAniseikoniaPresbyopiaVision disordersBlindnessAmblyopiaDiplopiaScotomaColor blindnessAchromatopsiaDichromacyMonochromacyNyctalopiaOguchi diseaseVision lossVisual impairmentAnopsiaHemianopsiabinasalbitemporalhomonymousQuadrantanopiaAsthenopiaHemeralopiaPhotophobiaScintillating scotomaAnisocoriaArgyll Robertson pupilMarcus Gunn pupilAdie syndromeMiosisMydriasisCycloplegiaParinaud's syndromeNystagmusChildhood blindnessInfectionsOnchocerciasisCongenitalDistichiaAblepharonMarcus Gunn phenomenonAnophthalmiaCystic eyeballCryptophthalmosMicrophthalmiaAniridiaAnterior segmentAxenfeld–Rieger syndromeMegalocorneaCornea plana 1Cornea plana 2MegalopapillaBuphthalmosColobomaColoboma of optic nerveHydrophthalmosNorrie disease