61. Introduction: Keratoconus - WrongDiagnosis.com Introduction to keratoconus as a medical condition including symptoms, diagnosis,misdiagnosis, treatment, prevention, and prognosis. http://www.wrongdiagnosis.com/k/keratoconus/intro.htm

Home Symptoms Diseases Risks ... Diseases Search our medical database Subscribe to our free Newsletter sample Send this page to a friend Condition Lists By Organ By Symptom By Class By Prevalence ... List A-Z Current chapter: Keratoconus Next sections Basic Summary for Keratoconus Prevalence and Incidence of Keratoconus Prognosis of Keratoconus Causes of Keratoconus ... Symptoms of Keratoconus Next chapters: Lattice dystrophy Map-dot-fingerprint dystrophy. Iridocorneal Endothelial Syndrome Choroiditis ... Feedback Introduction: Keratoconus Keratoconus: Gradual thinning of the eye cornea Keratoconus: This disordera progressive thinning of the corneais the most common corneal dystrophy in the U.S., affecting one in every 2000 Americans. It is more prevalent in teenagers and adults in their 20s. Keratoconus arises when the middle of the cornea thins and gradually bulges outward, forming a rounded cone shape. This abnormal curvature changes the cornea's refractive power, producing moderate to severe distortion (astigmatism) and blurriness (nearsightedness) of vision. Keratoconus may also cause swelling and a sight-impairing scarring of the tissue. Researching symptoms of Keratoconus: Further information about the symptoms of Keratoconus is available including a list of symptoms of Keratoconus , or alternatively return to research other symptoms in the symptom center Treatments for Keratoconus:

62. THE MERCK MANUAL--SECOND HOME EDITION, Keratoconus In Ch. 230, Corneal Disorders keratoconus is a gradual change in the shape of the cornea that causes it tobecome cone shaped. The condition usually begins between the ages of 15 and 25. http://www.merck.com/mmhe/sec20/ch230/ch230i.html

var externalLinkWarning = "The link you have selected will take you to a site outside Merck and The Merck Manuals.*n*nThe Merck Manuals do not review or control the content of any non-Merck site. The Merck Manuals do not endorse and are not responsible for the accuracy, content, practices, or standards of any non-Merck sources."; Search The Second Home Edition , Online Version Search Index A B C D ... Z Sections Accidents and Injuries Blood Disorders Bone, Joint, and Muscle Disorders Brain, Spinal Cord, and Nerve Disorders ... Women's Health Issues Resources Anatomical Drawings Multimedia Pronunciations Weights and Measures ... , Online Version Section Eye Disorders Chapter Corneal Disorders Topics Introduction Bullous Keratopathy Corneal Ulcer Herpes Simplex Keratitis ... Keratoconjunctivitis Sicca Keratoconus Keratomalacia Peripheral Ulcerative Keratitis Superficial Punctate Keratitis Keratoconus Buy The Book Print This Topic Email This Topic Pronunciations conjunctivitis keratitis keratoconus keratomalacia ... keratopathy Keratoconus is a gradual change in the shape of the cornea that causes it to become cone shaped. The condition usually begins between the ages of 15 and 25. Both eyes are usually affected, producing major changes in vision and requiring frequent changes in the prescription for eyeglasses or contact lenses. Contact lenses often correct the vision problems better than eyeglasses, but sometimes the change in corneal shape is so severe that contact lenses either cannot be worn or cannot correct vision. In severe cases, corneal transplantation (see

63. THE MERCK MANUAL, Sec. 8, Ch. 96, Corneal Disorders keratoconus. A slowly progressive ectasia of the cornea, usually bilateral,beginning between ages 10 and 20. The cone shape that the cornea assumes causes http://www.merck.com/mrkshared/mmanual/section8/chapter96/96j.jsp

64. AllRefer Health - Keratoconus keratoconus information center covers causes, prevention, symptoms, diagnosis,treatment, incidence, risk factors, signs, tests, support groups, http://health.allrefer.com/health/keratoconus-info.html

AllRefer Channels :: Yellow Pages Reference Health Home ... Contact Us Quick Jump ADD/ADHD Allergies Alzheimer's Disease Arthritis Asthma Back Pain Breast Cancer Cancer Colon Cancer Depression Diabetes Gallbladder Disease Heart Attack Hepatitis High Cholesterol HIV/AIDS Hypertension Lung Cancer Menopause Migraines/Headaches Osteoporosis Pneumonia Prostate Cancer SARS Stroke Urinary Tract Infection 1600+ More Conditions Alternative Medicine Health News Symptoms Guide Special Topics ... Medical Encyclopedia Web health.allrefer.com You are here : AllRefer.com Health Keratoconus Keratoconus Definition Prevention Treatment Expectations or Prognosis ... Go To Main Page Definition Keratoconus is a deterioration of the structure of the cornea with gradual bulging from the normal round shape to a cone shape. This condition causes decreased visual acuity . It is frequently discovered during adolescence. Cornea The cause is unknown. Keratoconus is more common in contact lens wearers and people with nearsighted eyes. Some researchers believe that allergy may play a role. Previous Top Next Jump to another section Definition Keratoconus Prevention Keratoconus Treatment Keratoconus Prognosis ... Calling Your Health Care Provider Topics that might be of interest to you Corneal Transplant Other Topics Vision Problems Review Date : 12/23/2002 Reviewed By : Raymond S. Douglas M.D., Ph.D. Department of Ophthalmology, UCLA Medical Center, Los Angeles, CA. Review provided by VeriMed Healthcare Network.

65. AllRefer Health - Keratoconus Treatment keratoconus information center covers Treatment. keratoconus Treatment.Contact lenses are the primary treatment and are satisfactory treatment for most http://health.allrefer.com/health/keratoconus-treatment.html

AllRefer Channels :: Yellow Pages Reference Health Home ... Contact Us Quick Jump ADD/ADHD Allergies Alzheimer's Disease Arthritis Asthma Back Pain Breast Cancer Cancer Colon Cancer Depression Diabetes Gallbladder Disease Heart Attack Hepatitis High Cholesterol HIV/AIDS Hypertension Lung Cancer Menopause Migraines/Headaches Osteoporosis Pneumonia Prostate Cancer SARS Stroke Urinary Tract Infection 1600+ More Conditions Alternative Medicine Health News Symptoms Guide Special Topics ... Medical Encyclopedia Web health.allrefer.com You are here : AllRefer.com Health Keratoconus : Treatment of Keratoconus Keratoconus Definition Prevention Treatment Expectations or Prognosis Complications Calling Your Health Care Provider Go To Main Page Keratoconus Treatment Contact lenses are the primary treatment and are satisfactory treatment for most patients with keratoconus. Severe cases may require corneal transplantation Previous Top Next Jump to another section Definition Keratoconus Prevention Keratoconus Treatment Keratoconus Prognosis Keratoconus Complications Calling Your Health Care Provider Topics that might be of interest to you Corneal Transplant Other Topics Vision Problems Review Date : 12/23/2002 Reviewed By : Raymond S. Douglas M.D., Ph.D. Department of Ophthalmology, UCLA Medical Center, Los Angeles, CA. Review provided by VeriMed Healthcare Network.

66. Information About Keratoconus keratoconus is a vision disorder that occurs when the normally round cornea keratoconus may progress for 1020 years and then slow in its progression. http://www.mamashealth.com/eye/kera.asp

Mamashealth.com Home Eye Health Amblyopia Aniridia Astigmatism Bietti's Crystalline Dystrophy ... Sty Links Email Mama What is Keratoconus? Keratoconus is a vision disorder that occurs when the normally round cornea becomes thin and cone shaped. The abnormal shape of the cornea prevents the light entering the eye from being focused correctly on the retina and causes distortion of vision. Keratoconus may progress for 10-20 years and then slow in its progression. Each eye may be affected differently. As keratoconus progresses, the cornea bulges more and vision may become more distorted. In a small number of cases, the cornea will swell and cause a sudden and significant decrease in vision. The swelling occurs when the strain of the cornea's protruding cone-like shape causes a tiny crack to develop. Symptoms of Keratoconus? In its earliest stages, the symptoms of keratoconus are slight blurring, distortion of vision, nearsightedness, astigmatism, and increased sensitivity to glare and light. In rare cases, a sudden, significant decrease in vision will occur. The sudden and significant decrease in vision is caused by swelling of the the cornea. The swelling may last for weeks or months. Treatment options?

67. SUNY State College Of Optometry: Keratoconus keratoconus What Is keratoconus? Picture of how your eyes work To understandkeratoconus, you must know a bit about how your eyes work. http://www.sunyopt.edu/uoc/keratoconus.shtml

University Optometric Center 33 West 42nd Street at Bryant Park New York, NY 10036 Home Patient Education Keratoconus Keratoconus What Is Keratoconus? To understand keratoconus, you must know a bit about how your eyes work. Seeing begins when light from an object passes through the cornea, which is the transparent protective front part of your eye. The cornea bends or refracts the light which then passes through the pupil. The pupil opens and closes to control the amount of light entering. The light then passes through the lens, which changes shape, further bending the light and focusing it on the retina, the light sensitive portion at the back of your eye. The retina contains nerve cells that convert the light to electrical impulses which are sent via the optic nerve to the brain where seeing occurs. Keratoconus is a vision disorder that occurs when the normally round cornea (the front part of the eye) becomes thin and cone shaped. This abnormal shape prevents the light entering the eye from being focused correctly on the retina and causes serious distortion of vision. What Causes Keratoconus?

68. View Study [NEI Clinical Studies] The need for a prospective, observational study of keratoconus patients is The Collaborative Longitudinal Evaluation of keratoconus (CLEK) Study is a http://www.nei.nih.gov/neitrials/viewStudyWeb.aspx?id=57

69. Collaborative Longitudinal Evaluation Of Keratoconus (CLEK) Study, The [NEI Clin Clinical Trials Research Tool Supported by the NEI. http://www.nei.nih.gov/neitrials/static/study57.asp

Text size: S M L Health Funding News Laboratories ... Clinical Studies Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study, The Purpose Background Description Patient Eligibility ... NEI Representative Purpose To describe the clinical course of keratoconus and to describe the relationships among its visual and physiological manifestations, including high- and low-contrast visual acuity, corneal curvature, slit lamp biomicroscopic findings, corneal scarring, and quality of life. To identify risk factors and protective factors that influence the severity and progression of keratoconus. Background Keratoconus is a bilateral, asymmetric, chronic, progressive ectasia of the cornea characterized by steepening and distortion of the cornea, thinning of the apical cornea, corneal scarring, and treatment-related sequelae, such as abrasions from contact lenses and surgical complications. Patients experience distorted vision that worsens with disease progression. Their vision is typically corrected with spectacles early in the disease and, later, with rigid contact lenses. Some patients eventually undergo corneal transplantation in one or both eyes. Keratoconus affects people in their prime earning years and profoundly affects their lives. Previous large-scale studies of keratoconus have focused on incidence and prevalence, etiologies, or the clinical management of keratoconus. Few have characterized the course of the disease and risk factors for its progression in large samples of keratoconus patients. The incidence of vision-threatening corneal scarring in keratoconus is unknown. Patients' most frequent questionshow rapidly their keratoconus will progress, how bad their vision will become, whether they will need corneal surgery, how successful their contact lenses will becannot be answered on the basis of the current body of knowledge.

70. Keratoconus, UPMC | University Of Pittsburgh Medical Center, Pittsburgh, PA, USA A comprehensive resource describing the causes, symptoms, diagnosis, and treatmentof keratoconus from the health care experts at University of Pittsburgh http://eye.upmc.com/Keratoconus/

Home Keratoconus Keratoconus is a progressive thinning and steepening of the cornea, the clear dome of tissue that covers the iris. The actual shape of the cornea is altered so that it resembles a "cone" protruding from the front surface of the cornea. Overview Diagnosis Treatment Options Research ... Contact UPMC Supplemental content provided by EBSCO Publishing Terms and Conditions

71. Keratoconus Definition - Medical Dictionary Definitions Of Popular Medical Terms Online Medical Dictionary and glossary with medical definitions. http://www.medterms.com/script/main/art.asp?articlekey=4095

72. Keratoconus keratoconus causes the cornea to undergo progressive thinning and thus protrudeoutward, forming a conelike curvature, which leads to distortion and http://www.steen-hall.com/keratoconus.html

Our Doctors Laser Vision Correction Cataract Surgery Conductive Keratoplasty ... Retinal Conditions (Including Macular Degeneration) Surgery Cornea Glaucoma General Eye Care Latest Information ... Financing Seminars SEARCH Home Keratoconus What is a Keratoconus? The normal cornea is usually has a spherical curvature. A disease called keratoconus causes the cornea to undergo progressive thinning and thus protrude outward, forming a cone-like curvature, which leads to distortion and decreased vision. The disease is thought to be inherited and begins to manifest itself sometime in the late-teen through early adult years. Treatment for Keratoconus In some cases, glasses or contact lenses may improve vision in patients with keratoconus. More severe cases may require removal of the affected cornea and replacement with donor tissue through a cornea transplant operation. Home Our Doctors Laser Vision Correction Cataract Surgery ... Search Steen-Hall Eye Institute.

73. Eye Conditions > Keratoconus -- EyeMDLink.com Although usually not visible without testing, keratoconus has caused this keratoconus is a corneal degenerative disorder, in which the cornea becomes http://www.eyemdlink.com/Condition.asp?ConditionID=25

74. Keratoconus Self-Help Group - Patient UK keratoconus SelfHelp Group - Patient UK. A directory of UK health, disease,illness and related medical websites that provide patient information. http://www.patient.co.uk/showdoc/26739506/

Keratoconus Self-Help Group P O Box 26251 London Tel: 020 8993 4759 Web: www.keratoconus-group.org.uk Best time to telephone: evenings and weekends Keratoconus is a condition of the eye meaning conical cornea. The Keratoconus Self-Help Group provides support to people with the condition and works to raise awareness of the condition. It offers the following. Information and support for people with keratoconus. Regular meetings for members, often with guest speakers. Regular newsletter. Fundraising for research into the condition. A booklet produced by Moorfields Eye Hospital, Keratoconus: Some Questions Answered , available from the above address for a small charge. Checked: July 2004 Sponsored links and adverts Patient UK has no control of the content of the following links. Inclusion does not imply endorsement by Patient UK. Health Related Books From Amazon - browse hundreds of books on health and disease. Also, worth a look... Related pages in Patient UK Other - Useful resources Pictures, diagrams, photos, images, etc. Evidence based medicine Online textbooks and journals Guidelines ... Top of Page Further services Need an operation but on a waiting list ? Are you considering having it done privately but are not insured? Find the best prices for your operation Next of Kin . In an emergency, alerts paramedics with your vital medical or allergy information. Plus immediate contact with your family or next of kin.

75. Keratoconus - Patient UK UK keratoconus Self Help and Support Group The Group provides information They have not been checked to see if keratoconus is included but these large http://www.patient.co.uk/showdoc/390/

Keratoconus UK sources of information and / or support UK Keratoconus Self Help and Support Group The Group provides information and support for people with Keratoconus in the UK. It organises regular meetings for members, produces a regular newsletter, raises money for research and works to raise awareness of Keratoconus. Further sources / More detailed information Some non-UK sites The following list popular non-UK health information sites, mainly from the US. They have not been checked to see if Keratoconus is included but these large sites are comprehensive. Non-UK disease / illness sites Non-UK self-help / support group sites Evidence Based Medicine For sites and information on Evidence Based Medicine. Searching Medline For information on Medline and how it is used to find detailed medical and health information. Sponsored links and adverts Patient UK has no control of the content of the following links. Inclusion does not imply endorsement by Patient UK. Health Related Books From Amazon - browse hundreds of books on health and disease. Also, worth a look...

76. VisionConnection - Your Vision - Eye Disorders - Keratoconus keratoconus is a slowly progressive eye condition that affects the clear, keratoconus is estimated to occur in one out of every 2000 persons in the http://www.visionconnection.org/Content/YourVision/EyeDisorders/Keratoconus/defa

Welcome to VisionConnection. Jump directly to: Content Site Navigation Search Style Settings ... Help Style Settings Colors Black on White White on Black White on Blue White on Purple Text Size Medium Large Larger Largest ... Text Only Site Navigation Your Vision Prevention Vision Rehabilitation Ask the Expert ... My Preferences Search Home Your Vision Eye Disorders Keratoconus What is keratoconus? Keratoconus is a slowly progressive eye condition that affects the clear, front surface of the eye – the cornea. The normally round, dome-shaped cornea weakens and thins, causing a cone-like bulge to develop. The regular curvature of the cornea becomes irregular, resulting in increasing nearsightedness (myopia) and astigmatism that have to be corrected with special glasses or contact lenses. Since the cornea is responsible for refracting (bending and focusing) most of the light coming into the eye, corneal abnormalities can result in significant visual impairment, making simple tasks like driving or watching TV difficult. Keratoconus is estimated to occur in one out of every 2,000 persons in the general population. Generally, it is first diagnosed in young people at puberty or in their late teens. There is no known significant geographic, cultural or social pattern. What causes keratoconus?

77. Keratoconus In early keratoconus, the signs may be subtle. The following signs should mayyou suspect that the patient has keratoconus http://www.mrcophth.com/corneacommoncases/keratoconus.html

Keratoconus Corneal scar from previous hydrops Fleischer's ring (arrowed) around the cone Vogt's striaes in keratoconus Enlarged corneal nerves in keratoconus This is a favourite corneal case in slit-lamp examination. In early keratoconus, the signs may be subtle. The following signs should may you suspect that the patient has keratoconus: presence of periocular eczema or Down's syndrome wearing of hard contact lenses corneal graft in the contralateral eye. Some candidates have been asked to examine the corneal reflexes with a direct ophthalmoscope, there are often abnromal reflexes some of which may resemble subluxation of the lens. In early cases, the only signs may be thinning of the cornea apex with striation of the stroma and Descemet's membrane (Vogt's striaes). There is Fleischer's ring surronding the cone (blue light on the slit-lamp can improve its visualization). The corneal nerves are prominent. In advanced cases, there are cornea scars from previous hydrop. Other examination: remember to examine the fellow eye which may show a different stage of progression or corneal graft mention tot he examiner that you like to demonstrate the Munson's sign (which is distortion of the lower lid on down-gaze) and Rizzuti's sign (conical reflection on the nasal cornea when a penlight is shone from the temporal side).

78. FAQs/Keratoconus - AAPOS keratoconus is a condition that is due to progressive steepening of the cornea The exact cause of keratoconus in not known but is thought to be due to http://www.aapos.org/pubresources/FAQs-Keratoconus.htm

SEARCH SITE document.write('') AAPOS Public Resources  » FAQs/Keratoconus Keratoconus What is keratoconus? Keratoconus is a condition that is due to progressive steepening of the cornea resulting in a “cone” shaped appearance. The cornea becomes thin near the center and leads to myopia (near sightedness) and severe astigmatism. It is usually bilateral and begins during adolescence. What causes keratoconus? The exact cause of keratoconus in not known but is thought to be due to combination of factors that lead to corneal thinning. Abnormal function of enzymes involved in maintenance of the cornea (lysozymes and proteolytic inhibitors) has been implicated, as well as abnormalities in collagen structure. Eye rubbing and contact lens wear have been associated with keratoconus. Is keratoconus hereditary? Most cases of keratoconus are sporadic (nonfamilial), but occasionally it is transmitted as an autosomal dominant trait. Is Down syndrome associated with keratoconus? The incidence of keratoconus is higher in Down syndrome patients than in the general population. It is unclear whether excessive eye rubbing may predispose to keratoconus in this group.

79. Keratoconus Articles, Support Groups, And Resources keratoconus articles, support groups, and resources for patients from Med HelpInternational (www.medhelp.org) http://www.medhelp.org/HealthTopics/Keratoconus.html

[Health Topics A-Z] A B C D ... Z Keratoconus Ask The Doctor Forums Hydrops and Keratoconus (Eye Care Forum) Keratoconus (Eye Care Forum) QUESTION ON KERATOCONUS (Gastroenterology and Liver Diseases Forum) REGARDING KERATOCONUS (Eye Care Forum) ... What to do with k.c. and cant tolerate them lenses (Eye Care Forum) Support Groups: National Keratoconus Foundation Med Help International Search Medical Forums / Message Boards ... Site Map Revised: 9/7/2005

80. Keratoconus keratoconus is a progressive ectasia (expansion or dilatation) of the cornea, The disorder progresses slowly and occurs in three forms keratoconus http://ww3.komotv.com/global/story.asp?s=1230732

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