• Resumen
  • Sinónimos
  • Signos y Síntomas
  • Causas y Herencia
  • Frecuencia
  • Enfermedades con síntomas similares
  • Tratamiento
  • Investigaciones
  • Referencias
  • Programas & Recursos
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Chandler’s Syndrome

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Última actualización: March 30, 2016
Años publicados: 1993, 1997, 2004, 2010, 2013, 2016


Reconocimiento

NORD gratefully acknowledges Sarwat Salim, MD, FACS, Professor of Ophthalmology, Chief, Glaucoma Service, Medical College of Wisconsin, for assistance in the preparation of this report.


Resumen

Chandler’s syndrome (CS) is a rare eye disorder in which the endothelium, the single layer of cells lining the interior of the cornea, proliferates causing corneal edema, distortion of the iris, and unusually high pressure in the eye (glaucoma). CS is one of three syndromes affecting the eyes (progressive iris atrophy and Cogan-Reese syndrome are the other two) that make up the iridocorneal endothelial syndrome (ICE syndrome). The spectrum is an acquired, unilateral disorder, which typically occurs in early to middle adulthood and predominantly affects women. Chandler’s syndrome is the most commonly encountered clinical variant of this spectrum.

Most often the condition affects one eye only, but the fellow eye often has subclinical involvement. The combination of high pressure within the eye (glaucoma) and corneal edema can result in reduced vision, frequently requiring surgical intervention with variable success rates.

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Sinónimos

  • iridocorneal endothelial syndrome
  • iris atrophy with corneal edema and glaucoma
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Signos y Síntomas

Chandler’s syndrome is characterized by proliferation of the cells lining the cornea, swelling of the cornea with distortion of the iris and glaucoma (optic nerve damage from high pressure) within the eye.

The pupil of the eye appears to be out of place, i.e. located in an out-of-the-ordinary position and distorted in shape and size (corectopia). In Chandler’s syndrome, whatever iris atrophy occurs is mild when compared to that associated with progressive iris atrophy and Cogan-Reese syndrome. Typically, the corneal endothelium presents as a hammered, silver surface on the back of the cornea. Because iris alternations may be minimal in the early stage of the disease, CS is often not recognized initially by the clinicians.

The disorder may cause blurred vision, pain in the eye with eventual loss of vision. Usually only one eye is affected; however, the other eye may, very rarely, be clinically involved.

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Causas y Herencia

The single layer of cells lining the inside of the surface of the cornea is known as the endothelium. One of the roles played by the endothelium is to pump aqueous humor (fluid inside the eye) from the cornea. If the behavior of the endothelium is interrupted (as in Chandler’s syndrome), the pumping action fails, and fluid accumulates in the cornea (corneal edema) resulting in blurred vision. In addition, the abnormal endothelial cells can migrate as a membrane over adjacent structures, including the iris and the trabecular meshwork (the drainage canal of the eye). Contraction of this membrane leads to associated iris changes (corectopia) and iridotrabecular synechiae causing obstruction of aqueous outflow in the trabecular meshwork resulting in secondary glaucoma.

The exact cause of Chandler’s syndrome is not known. Some researchers suspect that inflammation or chronic viral infection may be the cause of the disease. Herpes simplex virus DNA has been demonstrated with polymerase chain reaction in corneal specimens obtained from patients with ICE syndrome.

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Frecuencia

Chandler’s syndrome is a very rare disorder that affects females more often than it does males. The disorder usually appears during young adult to middle aged years. However, its occurrence in a child and a teenager has been reported. ICE syndrome has been described in different ethnic groups, although the prevalence of the 3 clinical variants may vary among ethnicities.

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Tratamiento

Treatment

Treatment of Chandler’s syndrome usually involves the use of drops in the eyes to control the glaucoma and swelling (edema). Mild cases or corneal edema are often managed with soft contact lenses and hypertonic saline solutions. In advanced cases penetrating or endothelial keratoplasty may be required, although the failure rate is high with need for repeat corneal grafts. In some individuals, the corneal edema may be improved with reduction in intraocular pressure. Medical therapy for glaucoma is usually initiated with aqueous suppressants, including beta blockers, alpha-2 agonists and carbonic anhydrase inhibitors. Prostaglandin analogues may be helpful in some cases. Surgical intervention for glaucoma is eventually required in a high percentage of patients with ICE syndrome. The most commonly performed procedure is trabeculectomy, with variable success rates. Glaucoma drainage devices have shown favorable outcomes in a small number of patients, but further studies are warranted to validate these results in a large series. Laser surgery is rarely effective.

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Investigaciones

Information on current clinical trials is posted on the Internet at www.clinicaltrials.gov. All studies receiving U.S. government funding, and some supported by private industry, are posted on this government web site.

For information about clinical trials being conducted at the NIH Clinical Center in Bethesda, MD, contact the NIH Patient Recruitment Office:
Tollfree: (800) 411-1222
TTY: (866) 411-1010
Email: [email protected]

For information about clinical trials sponsored by private sources, contact:
www.centerwatch.com

For information about clinical trials conducted in Europe, contact:
https://www.clinicaltrialsregister.eu/

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Referencias

TEXTBOOKS

Salim S, Shields MB. Iridocorneal Endothelial Syndromes. In: Kahook and Schuman, eds. Chandler and Grant’s Glaucoma. Slack Incorporated. New Jersey. 2013:319-326.

Shields MB. Iridocorneal Endothelial Syndromes. In: NORD Guide to Rare Disorders. Lippincott Williams & Wilkins. Philadelphia, PA. 2003:649.

Kanski JJ. Ed. Clinical Ophthalmology. 4th ed. Butterworth-Heinemann. Oxford, UK. 1999:233-34.

JOURNAL ARTICLES
Geyer O, Neufelder M, Michaeli-Cohen A, et al. Radiation-induced Chandler’s syndrome. Isr Med Assoc J. 2000;2:241-42.

Huna R, Barak A, Melamed S. Bilateral iridocorneal endothelial syndrome presented as Cogan-Reese and Chandler’s syndrome. J Glaucoma.1996;5:60-62.

Hirst LW, Bancroft J, Yamauchi K, et al. Immunohistochemical pathology of the corneal endothelium in iridocorneal endothelial syndrome. Invest Ophthalmol Vis Sci.1995;36:820-27.

Hemady RK, Patel A, Blum S, et al. Bilateral iridocorneal endothelial syndrome: case report and review of the literature. Cornea.1994;13:368-72.

INTERNET

Devine N. ed. ICE Syndrome Chat Highlights. “ICE Syndrome” July 23, 2003. Available at: https://willsglaucoma.org/ice-syndrome-2 Accessed March 30, 2016.

Facts About The Cornea and Corneal Disease. National Eye Institute (NEI). Last Update: May 2013. Available at: https://www.nei.nih.gov/health/cornealdisease/#g Accessed March 30, 2016.

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Programas & Recursos

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Aprende más https://rarediseases.org/patient-assistance-programs/medicalert-assistance-program/

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Programa de descanso para cuidadores raros

Este programa de asistencia, primero en su tipo, está diseñado para los cuidadores de un niño o adulto diagnosticado con un trastorno raro.

Aprende más https://rarediseases.org/patient-assistance-programs/caregiver-respite/

Organizaciones de pacientes


More Information

The information provided on this page is for informational purposes only. The National Organization for Rare Disorders (NORD) does not endorse the information presented. The content has been gathered in partnership with the MONDO Disease Ontology. Please consult with a healthcare professional for medical advice and treatment.

GARD Disease Summary

The Genetic and Rare Diseases Information Center (GARD) has information and resources for patients, caregivers, and families that may be helpful before and after diagnosis of this condition. GARD is a program of the National Center for Advancing Translational Sciences (NCATS), part of the National Institutes of Health (NIH).

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Orphanet

Orphanet has a summary about this condition that may include information on the diagnosis, care, and treatment as well as other resources. Some of the information and resources are available in languages other than English. The summary may include medical terms, so we encourage you to share and discuss this information with your doctor. Orphanet is the French National Institute for Health and Medical Research and the Health Programme of the European Union.

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National Organization for Rare Disorders