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Keratitis

Evidencia revisada por última vez: 14 Feb 2026
Tema actualizado por última vez: 09 Oct 2025

Resumen

Definición

Anamnesis y examen

Principales factores de diagnóstico

  • corneal infiltrate
  • corneal ulcer
  • dendritic or geographic epithelial lesion
  • periocular skin lesions
  • multifocal corneal ulcer with feathery edges
  • corneal perineuritis
  • interstitial keratitis
Todos los datos

Otros factores de diagnóstico

  • redness
  • pain
  • increased lacrimation
  • lid edema
  • discharge
  • decreased visual acuity
  • photophobia
  • high intraocular pressure
  • history of herpes simplex virus or varicella zoster virus infection
  • multiple old stromal scars
  • iris transillumination
  • corneal hypoesthesia
Todos los datos

Factores de riesgo

  • contact lens wear
  • corneal trauma
  • corneal abrasion/erosion
  • recurrent corneal erosions
  • immunocompromise
  • history of autoimmune disease
  • trichiasis
  • blepharitis
  • dry eye
  • poor eyelid function
  • previous herpetic disease
  • exposure keratitis
  • contaminated water exposure
  • topical corticosteroid use
  • topical anesthetic use
  • previous eye surgery
Todos los datos

Pruebas diagnósticas

Primeras pruebas diagnósticas para solicitar

  • corneal scraping: microscope slide
  • corneal scraping: cultures and sensitivity
Todos los datos

Pruebas diagnósticas que deben considerarse

  • CBC
  • HIV test
  • autoimmune testing
  • corneal scraping: polymerase chain reaction (PCR) testing
Todos los datos

Algoritmo de tratamiento

Inicial

bacterial (presumed): high risk

Agudo

bacterial

herpetic

fungal

protozoan (Acanthamoeba)

noninfectious keratitis

En curso

recurrent herpetic infection

corneal scarring impairing vision

Colaboradores

Autores

Kraig S. Bower, MD

Director of Refractive Surgery

The Wilmer Eye Institute

The Johns Hopkins Hospital

Baltimore

MD

Divulgaciones

KSB declares that he has no competing interests.

Frank S. Hwang, MD

Assistant Professor

Cornea, External Disease and Refractive Surgery

Loma Linda University Eye Institute

Loma Linda University

Loma Linda

CA

Divulgaciones

FSH declares that he has no competing interests.

Agradecimientos

Dr Kraig S. Bower and Dr Frank S. Hwang would like to gratefully acknowledge Dr Julie Freidlin Leigh, a previous contributor to this topic.

Divulgaciones

JFL declares that she has no competing interests.

Revisores por pares

Matilda Chan, MD, PhD

Proctor Fellow in Cornea and External Disease

Francis I. Proctor Foundation

University of California

San Francisco

CA

Disclosures

MC declares that she has no competing interests.

Parwez Hossain, MD, PhD, FRCOphth, FRCS (Ed)

Senior Lecturer & Consultant

Ophthalmic Surgeon

Division of Infection, Inflammation & Immunity

University of Southampton

Southampton General Hospital

Southampton

UK

Declarações

PH declares that he has no competing interests.

Créditos aos pareceristas

Os tópicos do BMJ Best Practice são constantemente atualizados, seguindo os desenvolvimentos das evidências e das diretrizes. Os pareceristas aqui listados revisaram o conteúdo pelo menos uma vez durante a história do tópico.

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Referências

Nossas equipes internas de editoria e de evidências trabalham em conjunto com colaboradores internacionais especializados e pares revisores para garantir que forneçamos acesso às informações o mais clinicamente relevantes possível.

Principais artigos

Rhee MK, Ahmad S, Amescua G, et al. Bacterial keratitis preferred practice pattern®. Ophthalmology. 2024 Apr;131(4):P87-133.Texto completo  Resumo

Herretes S, Wang X, Reyes JM. Topical corticosteroids as adjunctive therapy for bacterial keratitis. Cochrane Database Syst Rev. 2014 Oct 16;(10):CD005430.Texto completo  Resumo

Wilhelmus KR. Antiviral treatment and other therapeutic interventions for herpes simplex virus epithelial keratitis. Cochrane Database Syst Rev. 2015 Jan 9;(1):CD002898.Texto completo  Resumo

Artigos de referência

Uma lista completa das fontes referenciadas neste tópico está disponível para os usuários com acesso total ao BMJ Best Practice.
  • Keratitis images
  • Diagnósticos diferenciais

    • Corneal abrasion
    • Vernal keratoconjunctivitis with shield ulcer
    • Dry eye or exposure keratitis
    Mais Diagnósticos diferenciais
  • Diretrizes

    • Bacterial keratitis preferred practice pattern
    • Cornea/external disease summary benchmarks - 2024
    Mais Diretrizes
  • Folhetos informativos para os pacientes

    Herpes simplex eye infection

    Mais Folhetos informativos para os pacientes
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