81. Keratoconus keratoconus. What is keratoconus? keratoconus This abnormal shape can causeserious distortion of vision. What causes keratoconus? Research http://www.canolaservision.com/Info/Keratoconus.htm

Information Menu: Main Menu Page Information Home Menu Procedures Online Brochures Web Links for Information Eye News Newsletter News Agencies Reports Keratoconus What is keratoconus? Keratoconus is an uncommon condition in which the cornea (the clear front window of the eye) becomes thin and protrudes. Keratoconus literally means a cone-shaped cornea. This abnormal shape can cause serious distortion of vision. What causes keratoconus? Research indicates that keratoconus may be caused by an excess of enzymes that break down the proteins within the corneal surface, causing the cornea to thin and protrude. The genetic inheritance of keratoconus has not clearly been determined. It appears that it may involve a number of different genes. Blood relatives of someone affected with keratoconus have minor changes in their corneas that may indicate that keratoconus probably varies both in the specific genetic cause, as well as in its expression within a family. Vigorous eye rubbing can contribute to the disease process. People with keratoconus should avoid rubbing their eyes. This is sometimes very difficult because some allergies, which cause itchy, irritated eyes, are more commonly associated in patients with keratoconus.

82. SUNY State College Of Optometry: Keratoconus keratoconus What Is keratoconus? To understand keratoconus, you mustknow a bit about how your eyes work. Seeing begins when light 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?

83. Keratoconus keratoconus. Contact Lens W/O Contact Pinhole Glasses. http://www.hitl.washington.edu/publications/r-98-30/tsld026.htm

Keratoconus Contact Lens W/O Contact Pinhole Glasses Previous slide Next slide Back to first slide View graphic version

84. Keratoconus – Toppig Hornhinna keratoconus är en sjukdom i hornhinnan, som gör att denna förtunnasoch ändrar form. Hornhinnan keratoconus – toppig hornhinna. Av http://www.netdoktor.se/sjukdomar/Fakta/keratoconus.htm

Mage, Lever och Tarm Lexikon Sjukdomar Symptom Interaktivt Diskussionsgrupper Chat Forum Depression Nyheter Reportage Service NetDoktor Internationellt Patient-organisationer Av Dr. Elisabeth Aurell Vilka symptom har man? Uppdaterad The materials presented within NetDoktor.se are in no way meant to be substitutes for professional medical care or attention by a qualified practitioner. The materials within NetDoktor.dk cannot and should not be used as basis for a diagnosis or choosing a treatment. Click here - Conditions for use - Important legal information. Mage, Lever och Tarm LEXIKON: Sjukdomar Symptom INTERAKTIVT: Diskussionsgrupper Chat FORUM: Depression Nyheter Reportage SERVICE: NetDoktor Internationellt Patient-organisationer

85. Keratoconus Or Conically Shaped Cornea require a cornea transplant. keratoconus or Conically Shaped Cornea.19 March 2000. What is keratoconus? A rigid gas permeable http://www.contactlens.org.nz/kerato.htm

Contact lenses may be able to remedy this situation which might otherwise require a cornea transplant. Keratoconus or Conically Shaped Cornea 19 March 2000 What is KERATOCONUS? A rigid gas permeable lens used to correct an irregular cornea [Keratoconus] where the only alternative would be a corneal transplant! [Relatively common in New Zealand. It's very satisfying to provide excellent vision to those who would otherwise suffer severely, sometimes being classified as legally blind if not for contact lenses!] Compare this to the regular contact lens fitting depicted on the front page. A pool of tears can be seen just above the apex of the 'cone' as depicted by the bright green fluorescein , which is used to 'colour' the tears and make them visible. Like many medical terms the name KERATOCONUS is a description of what the condition looks like. KERA - meaning the cornea, and CONUS - meaning cone-shaped giving the description of a cone shaped cornea. At left is a graphic depiction of a normally shaped cornea. At right is a graphic depiction of a conically shaped, Keratoconic cornea.

86. Keratoconus Articles, Support Groups, And Resources keratoconus articles, support groups, and resources for patients fromMed Help International (www.medhelp.org). Health keratoconus. Q A 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 Home] [Library Search] [Medical Forums] ... [Patient Network] Revised: 3/30/2003

87. REGARDING KERATOCONUS Subject REGARDING keratoconus Topic Area Ophthalmic Plastic and ReconstructiveSurgery Forum The Eye Care Forum Question Posted By FATMA on Friday, January http://www.medhelp.org/perl6/eyecare/archive/164.html

Advertisement Welcome to Med Help! Questions in The Eye Care Forum are being answered by doctors from Henry Ford Health System , consistently ranked one of the best hospitals in America. Subject: REGARDING KERATOCONUS Topic Area: Ophthalmic Plastic and Reconstructive Surgery Forum: The Eye Care Forum Question Posted By: FATMA on Friday, January 29, 1999 I am a keratoconus patient in both eyes but I have been underwent eye transplantation (one eye) in 1997. My stitch have been removed 1st January this year after transplanted in August, 1997. But there is some changes in my eye, after every three or four days my eye become red and get pain and also is over sensitive to light and wind I dont know why, I went to see my physician and he insist to use my eyedrops prescribed by him after removal of stitch but I don't know why this occurs for so many times and I am still using eye drops four times a day. Could any one give me advice on this and what to do. Is this a sign of rejection or not. As you are aware, the recovery following corneal transplantation may be a year or longer. Fortunately, most people do very well. The symptoms that you are describing may represent inflammation of the cornea or inflammation inside the eye. Both of these can be treated with eye drops. It is possible that the symptoms that you are describing could represent early rejection, however, this should be visible during your examination by your transplant surgeon.

88. Spectacle.berkeley.edu/CLEK/CLEK.html Similar pages expatiate, v3.5 keratoconus, (from the karato, meaning cornea, and konos, meaning cone) or conicalcornea, is a condition in which the normally round shape of the cornea is http://spectacle.berkeley.edu/CLEK/CLEK.html

89. Health Information Resource Database: National Keratoconus Foundation National keratoconus Foundation. Contact Information. The NKCF also supports researchinto the causes, treatment and possible cure of keratoconus. Publications. http://www.health.gov/NHIC/NHICScripts/Entry.cfm?HRCode=HR2734

90. Lisa Payne's Keratoconus Page keratoconus. An eye condition often known as 'conical cornea'. The Effect of KC Theeffect of keratoconus varies hugely from personto-person and day-to-day. http://www.mis.coventry.ac.uk/~lisa/kerato.htm

Keratoconus An eye condition often known as 'conical cornea'. The Effect of KC The effect of keratoconus varies hugely from person-to-person and day-to-day. However this picture, (large file!), gives a fair impression of my vision. "Keratoconus" , August 2002 - a collage The fitting of contact lenses in KC A corneal lens: Reproduced from 'What is Keratoconus' by NKCF - with permission A scleral lens: From Innovative Sclerals Ltd web page. They made my scleral lens A brief history of contact lenses by Innovative Sclerals Corneal graft diary (.doc file), July 2002 UK Keratoconus Self Help and Support Group Registered Charity 1057629 A web-based support group which has been running since 1999. They offer meetings, maybe with guest speakers, newsletters and online resources. They do some fund-raising for KC research. Conference Report (17 March 2001) To join the group email: info@www.keratoconus-group.org.uk (I have not had any contact with them and would be happy to change this description, if necessary, if any reader is involved.) Keratoconus Support Group (Midlands) A KC support group has been formed in the Midlands. They offer booklets, meetings and newsletters.

91. Keratoconus Picture keratoconus , August 2002. Background © Lisa Payne, 2002. http://www.mis.coventry.ac.uk/~lisa/kerato_pic.htm

"Keratoconus" , August 2002 A second photograph Background

92. Grand Rapids Ophthalmology - Patient Education - Keratoconus keratoconus. WHAT IS keratoconus? keratoconus is an uncommon condition in whichthe cornea (the clear front window of the eye) becomes thin and protrudes. http://www.grolaser.com/laservisioncorrection/patienteducation/keratoconus.html

Keratoconus WHAT IS KERATOCONUS? Keratoconus is an uncommon condition in which the cornea (the clear front window of the eye) becomes thin and protrudes. Keratoconus literally means a cone shaped cornea. This abnormal shape can cause serious distortion of vision. WHAT CAUSES KERATOCONUS? Despite continuing research, the cause of keratoconus remains unknown. Although keratoconus is not generally considered an inherited disorder, the chance of a blood relative having keratoconus is thought to be as high as one in 10. Vigorous eye rubbing, although not the cause of keratoconus, can contribute to the disease process. Therefore, patients with keratoconus are advised to avoid rubbing their eyes. WHAT ARE THE SYMPTOMS OF KERATOCONUS? Blurring and distortion of vision are the earliest symptoms of keratoconus. Symptoms usually appear in the late teens or early twenties. The disease will often progress slowly for 10 to 20 years, then stop. In the early stages, vision may be only slightly affected, causing glare, light sensitivity and irritation. Each eye may be affected differently. As the disease progresses and the cornea steepens and scars, vision may become distorted. A sudden decrease in vision can occur if the cornea swells. The cornea swells when the elastic part of the cornea develops a tiny crack, created by the strain of the cornea's protruded cone-like shape. The swelling may persist for weeks or months as the crack heals and is gradually replaced by scar tissue.

93. 1Up Health > Health Links Directory > Conditions And Diseases: Eye Disorders: Ke Angeles Vision Clinic Offers information about keratoconus. Dwyer, Dave and JoanOffers personal information about keratoconus and links to other resources. http://www.1uphealth.com/links/eye-disorders-keratoconus.html

Home Contact Us Privacy Caring For Your Well Being Alternative Medicine Clinical Trials Health News Poisons ... Health Topics A-Z Search 1Up Health Health Directory Addictions Alternative Animal ... Weight Loss By Demography Child Health Teen Health Men's Health Women's Health ... Eye Disorders : Keratoconus Sites Angeles Vision Clinic Offers information about keratoconus. Center for Keratoconus Information about keratoconus, including FAQs, treatment, prevention, and diagnosis, message boards, support groups, personal stories, doctors, research and clinical trials. Dwyer, Dave and Joan Offers personal information about keratoconus and links to other resources. The National Keratoconus Foundation Non-profit organization that supports research and education about keratoconus. Nationally recognized practice of Drs. Art Epstein and Joseph Freedman located on Long Island NY, specializing in contact lenses, keratoconus and related eye disorders. Specialty Ultravision Manufacturer of Epicon, a unique carbosilfocon material contact lens for keratoconus. Help build the largest human-edited directory on the web.

94. Center For Keratoconus Message Board - Powered By Infopop Center for keratoconus » Center for keratoconus Message Board Registered Members3422. Ask the Doctor Eye doctors answer your questions about keratoconus. http://messages.kcenter.org/

Center for Keratoconus Message Board My Profile register search faq ... Center for Keratoconus Registered Members: 3463 Please visit our forums or chat now (Invite others to chat live; make sure to post a date and time below) Online Now: 1 There are currently members and 1 guests on the boards. details Forum Topics Posts Last Post Moderator Doctor's Office FAQs Eye doctors provide answers to the most frequently asked questions about keratoconus. As a courtesy to our volunteer doctors, PLEASE first review these FAQs before asking a question below. (READ ONLY FORUM) September 30, 2002 08:58 PM Ask the Doctor Eye doctors answer your questions about keratoconus. As a courtesy to our volunteer doctors, PLEASE first review the FAQS above or use the search tool at the bottom to see if your question has been answered. To avoid possible non-doctor advice, please don't give medical advice unless you are a qualified doctor. Re: Sticky eyes (Jeff Jacobs) March 29, 2003

95. Australian Optometric Panel What is keratoconus? keratoconus shape. keratoconus does not lead to blindnessbut the corneal distortion will cause a decrease in your vision. http://www.optom.com.au/website/pages/keratoconus/keratoconus.htm

What is Keratoconus? Keratoconus is a condition in which the cornea, the clear tissue in front of the coloured part of the eye, becomes thin and distorted in shape. Keratoconus does not lead to blindness but the corneal distortion will cause a decrease in your vision. Initially this condition can be treated with spectacles but, as it progresses, rigid hard contact lenses are needed to correct vision effectively. Sometimes, in the early stages, soft lenses can be used successfully. How do I know I have this? Usually the first awareness comes through having to change your spectacle prescription too frequently and from not achieving good vision even when the best spectacle correction is worn. What causes it? There does not appear to be any single cause for keratoconus. Our recent research has confirmed that allergy and frequent eye rubbing are commonly found among people with keratoconus. If you have this condition?

96. CCHS Clinical Digital Library keratoconus Clinical Resources. Miscellaneous keratoconus Clinical ResourcesHealth Reviews for Primary Care Providers on the Internet Homepage http://cchs-dl.slis.ua.edu/clinical/ophthalmology/corneal/keratoconus.htm

Clinical Resources by Topic: Ophthalmology Keratoconus Clinical Resources Pediatrics Pathology Clinical Guidelines News ... Miscellaneous Resources See also: Eye Evaluation Clinical Resources General Ophthalmology Clinical Resources Keratoconus Patient/Family Resources Yanoff: Ophthalmology 1st Ed.-1999 (MD Consult): Table of contents Health Sciences Library subscription INFO Section 5 - Cornea and External Disease: Access document Chapter 5 - Stromal Corneal Dystrophies and Ectasias: Access document Noble: Textbook of Primary Care Medicine, 3rd Ed.-2001 (MD Consult): Table of contents Health Sciences Library subscription INFO Chapter 175 - Diseases of the Cornea: Access document Introduction: Access document Anatomy: Access document Diagnostic Approach: Access document The Red Eye: Access document Goldman: Cecil Textbook of Medicine 21st Ed.-2000 (MD Consult): Table of contents Health Sciences Library subscription INFO Chapter 512 - Diseases of the Visual System: Access document Other MD Consult Reference Books Table of contents Health Sciences Library subscription INFO All MD Consult Reference Books for The Merck Manual 17th Ed.-1999:

97. CCHS Clinical Digital Library keratoconus Patient/Family Resources. Miscellaneous keratoconus Patient/FamilyResources National Library of Medicine MEDLINEplus Health Topics Index http://cchs-dl.slis.ua.edu/patientinfo/ophthalmology/corneal/keratoconus.htm

Patient/Family Resources by Topic: Ophthalmology Keratoconus Patient/Family Resources Spanish Miscellaneous See also: General Ophthalmology Patient/Family Resources Keratoconus Clinical Resources MEDLINE plus Medical Encyclopedia: Table of contents Keratoconus: English Spanish Merck Manual Home Edition Table of contents Chapter 222. Corneal Disorders: Access document Spanish MEDLINE plus Medical Encyclopedia: Table of contents Keratoconus: English Spanish Miscellaneous Keratoconus Patient/Family Resources National Library of Medicine MEDLINE plus Health Topics: Index Eye Injuries: List of documents YAHOO - Health:Diseases and Conditions:Eye Conditions Additional Eye Conditions resources ( These sites have not been reviewed. YAHOO - Health:Medicine:Ophthalmology Additional Ophthalmology resources ( These sites have not been reviewed. Health Sciences Library College of Community Health Sciences The University of Alabama Service provided by the Clinical Digital Libraries Project of the UA and UNT Schools of Library and Information Studies Powered by UA Digital Libraries Navigation Lab technology

98. Keratoconus For Medical Students & Primary Care Physicians keratoconus. DEFINITION keratoconus is a condition in which the cornea assumes aconical shape as a result of noninflammatory thinning of the corneal stroma. http://www.eyeweb.org/keratoconus.htm

KERATOCONUS By Dany Najjar M.D. DEFINITION: Keratoconus is a condition in which the cornea assumes a conical shape as a result of non-inflammatory thinning of the corneal stroma. The corneal thinning induces irregular astigmatism, myopia and protrusion leading to mild to moderate impairment in the quality of vision. It is a progressive disorder affecting both eyes although only one eye may be affected initially. EPIDEMIOLOGY: Keratoconus has its onset at puberty and is progressive until the third to fourth decade of life when it usually arrests. It is most commonly an isolated condition, however many diseases were reported to be associated with it, most importantly Down’s syndrome, Leber’s congenital amaurosis and connective tissue disorders. Other conditions such as atopy, eye rubbing and hard contact lenses have also been reported to be highly associated with this disorder. SIGNS OF KERATOCONUS: External signs: Munson’s sign: It is a V-shaped conformation of the lower lid produced by the ectatic cornea in downgaze.

99. Florida State University College Of Medicine Digital Library keratoconus Clinical Resources. Miscellaneous keratoconus Clinical ResourcesHealth Reviews for Primary Care Providers on the Internet Homepage http://fsumed-dl.slis.ua.edu/clinical/ophthalmology/corneal/keratoconus.htm

Clinical Resources by Topic: Ophthalmology Keratoconus Clinical Resources Pediatrics Pathology Clinical Guidelines News ... Miscellaneous Resources See also: Eye Evaluation Clinical Resources General Ophthalmology Clinical Resources Keratoconus Patient/Family Resources Yanoff: Ophthalmology 1st Ed.-1999 (MD Consult): Table of contents Medical Library subscription INFO Section 5 - Cornea and External Disease: Access document Chapter 5 - Stromal Corneal Dystrophies and Ectasias: Access document Noble: Textbook of Primary Care Medicine, 3rd Ed.-2001 (MD Consult): Table of contents Medical Library subscription INFO Chapter 175 - Diseases of the Cornea: Access document Introduction: Access document Anatomy: Access document Diagnostic Approach: Access document The Red Eye: Access document Goldman: Cecil Textbook of Medicine 21st Ed.-2000 (MD Consult): Table of contents Medical Library subscription INFO Chapter 512 - Diseases of the Visual System: Access document Other MD Consult Reference Books Table of contents Medical Library subscription INFO All MD Consult Reference Books for The Merck Manual 17th Ed.-1999:

100. W_keratoconus.htm keratoconus keratoconus is a condition that affects the shape of thecornea , the clear window surface of the eye . keratoconus . http://www.wa-eyemd.org/W_keratoconus.htm

Keratoconus Keratoconus is a condition that affects the shape of the cornea , the clear window surface of the eye . Instead of a spherical-shaped cornea , the cornea has a conical shape .The word ' keratoconus ' literally means cone-shaped cornea . ( To understand the optics of the eye , you may wish to refer to the section on refraction With keratoconus , there is a progressive central or paracentral thinning and bulging of the cornea , leading eventually to the cone shape . An hereditary pattern is neither predictable nor prominent , but positive family histories have been reported ; most cases are sporadic . Keratoconus is generally a bilateral condition , although one eye may be more severely affected than the other eye . Keratoconus develops in the adolescent years and eventually stabilizes over the next 10 to 20 years . As the disease progresses , apical thinning of the central cornea worsens producing extreme degrees of irregular astigmatism . The vision blurs because of optical distortion . In mild cases of keratoconus , at least for a while , vision may be corrected sufficiently with glasses . However

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