41. Keratoconus Translate this page Programa de Estudio Genético de keratoconus. Personal del Historia. keratoconussignifica literalmente “cornea cónico”. La córnea http://www.laser-prk.com/spanish_side/lasik_web/esp_keratoco.htm

Doctores Afliados Corrección de la Visión con Laser (LASIK) Transplantes de Córnea ... Rabinowitz Programa de Investigacon genetica de Keratoconus Córnea Pediátrica Fundación de Investigación de defectos del Ojo al nacer Como Contactarnos Programa de Estudio Genético de Keratoconus Personal del programa: Yaron S. Rabinowitz, M.D ., investigador principal, especialista en la córnea/oftalmólogo genetista, y Diana Remba , coordinadora de la investigación. Este estudio es financiado en parte por una beca de los Institutos Nacionales de la Salud del Ojo. Historia Nuestra Meta Las Ventajas de la Participación Cómo participar Apoyo Información / Cómo Conseguir Respuestas a sus Preguntas Historia Keratoconus significa literalmente “cornea cónico”. La córnea o la “ventana del ojo” va haciendo mas delgado, dando por resultado miopía y astigmatismo progresivo. La vista de la mayoría de pacientes con keratoconus puede ser corregida visualmente con lentes de contacto especiales. Puede requerir muchos cambios en graduacion de el lente conforme pase el tiempo por lo que la córnea está cambiando constantemente. El adelgacamiento de la córnea progresa a cualquier edad. En menos de 10% de los casos, un trasplante de la córnea puede ser necesario. Los transplantes de la córnea son los más exitosos de todos los transplantes de órganos con un índice del éxito mayor de 96% en pacientes con keratoconus.

42. ThinkQuest Library Of Entries keratoconus. note the irregular curvature. Yes No. What is it? keratoconus isthe enlarging of the cornea, which should normally be spherical in shape. http://library.thinkquest.org/C005949/diseases/keratoconus.htm

Welcome to the ThinkQuest Internet Challenge of Entries The web site you have requested, A Perception of Vision: Your Eyesite , is one of over 4000 student created entries in our Library. Before using our Library, please be sure that you have read and agreed to our To learn more about ThinkQuest. You can browse other ThinkQuest Library Entries To proceed to A Perception of Vision: Your Eyesite click here Back to the Previous Page The Site you have Requested ... A Perception of Vision: Your Eyesite click here to view this site A ThinkQuest Internet Challenge 2000 Entry Click image for the Site Site Desciption The human eye is by far the most important sensory organ. Our eyes play a dramatic role in our lives today. They contribute significantly to our emotions, ability to learn, and our capability to function in this world. “A Perception of Vision” offers a complete interactive guide to the human eye. This site provides an entertaining approach to many aspects of the eye concentrating on anatomy, diseases and corrective measures. Students Hien Kingwood High School TX, United States

43. Katzen Eye Group - Vision Care And LASIK Specialists Specialists. keratoconus A non to develop. keratoconus, often abbreviatedas “KC”, results in significant visual impairment. The http://www.katzeneye.com/services/keratoconus.htm

Keratoconus A non-inflammatory eye condition in which the normally round dome-shaped cornea progressively thins causing a cone-like bulge to develop. Keratoconus, often abbreviated as “KC”, results in significant visual impairment. The cornea is the clear window of the eye and is responsible for refracting most of the light coming into the eye. Therefore, abnormalities of the cornea severely affect the way we see the world making simple tasks, like driving, watching TV or reading a book difficult. “Keratoconus is a progressive disease of the cornea that is very difficult to treat. Therefore, patients become more frustrated, contact lens related problems arise and patients can lose sight. The care of a keratoconus patient takes one-on-one time with an eye care professional devoted to their craft,” said Dr. Brett Katzen. “ There is no cookie cutter approach to treating patients with keratoconus and only a few persons have the experience to treat these special patients. Tracey is one of those people and we are very fortunate to have her.” Tracey R. Hamburg completed her Bachelor of Science degree and her Master of Science degree at Johns Hopkins University. She is a licensed Certified Ophthalmic Technician. At Wilmer, she specialized in caring for patients with keratoconus, astigmatism and other corneal diseases. She participated in the training of Johns Hopkins medical students, residents, nurses and ophthalmic fellows. While at Johns Hopkins, Tracey co-authored twelve publications in scientific journals and presented her work at over twenty-five ophthalmology conferences.

44. Keratoconus Keywords Find it Here. keratoconus. National keratoconus Foundation Non-profitorganization that supports research and education about keratoconus. http://www.health-nexus.com/keratoconus.htm

Health-Nexus.Net Health-Nexus.Org The #1 Health information site Home ... Up Search Health-Nexus for: Match ALL words Match ANY word Email this page to a friend ! Post a question or comment on our Message Board Home Page Health Specialties Health News ... Alternative Health Options Substance Abuse Animal Health Search: Books Magazines Video Keywords: Find it Here Keratoconus DJO - Patient Information - Keratoconus - Roberto Pineda II, MD Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA Keratoconus (KC) is a non-inflammatory condition of the cornea in which there is progressive central ... National Keratoconus Foundation - Non-profit organization that supports research and education about keratoconus. CENTER FOR KERATOCONUS - Information about keratoconus, including FAQs, treatment, prevention, and diagnosis, with message boards, support groups, personal stories, doctors, research, clinical trials and more. Updated regularly. National Keratoconus Foundation (NKCF) Keratoconus - Information about keratoconus from a personal perspective. Includes a cornea transplant diary, and links to other resources.

45. Keratoconus keratoconus. What Is It? keratoconus is a disease in which the normallyround cornea thins and develops a conelike bulge. This http://www.totaleye.com/Visionproblems/Episcleritis/retinitis_pigmentosa/ROP/Ker

46. VisionWeb keratoconus. In keratoconus, the cornea progressively thins, causingvision distortion. Overview. keratoconus (kehra-toh-KOH-nus) is http://www.visionweb.com/content/consumers/dev_consumerarticles.jsp?RID=22

47. Lens Dynamics - Precision Lenses Case Histories 1.keratoconus 2.Pellucid Marginal Degeneration 3.Post Refractive Surgery4.Post Graft 5.Other High Astigmatic Corneas. Understanding keratoconus. http://www.lensdynamics.com/kerat/kerat_index.html

Irregular Corneas Dyna Intra-limbal Keratoconus Rose K Bifocal/ Multifocal Lenses ... Post Surgery Case Histories Keratoconus Pellucid Marginal Degeneration Post Refractive Surgery Post Graft Other High Astigmatic Corneas Sphere RGP/ Toric Lenses Orders Corporate Biography Contact ... Understanding Keratoconus What is Keratoconus? What causes it? Who Gets It? How is it treated? All of these questions and more answered here. Living with Keratoconus Living with Keratoconus can be difficult. Lens Dynamics has some tips and places to contact to make life a bit easier.

48. LaserSurgeryForEyes.com Contact Us. Glossary. Additional Info. Site Map. Home. keratoconus. keratoconusis a degenerative disease, generally occuring in the late teens to early twenties. http://www.lasersurgeryforeyes.com/keratoconus.html

Find a Surgeon in Your Area How to Choose a Surgeon Questions You Should Ask A Football Analogy For Your Eyes ... Nearsighted Procedures Intraocular Contacts Intacs IntraLASIK LASIK LASEK PIOL PRK RK WavePrint Farsighted Procedures CK Intraocular Contacts Intacs IntraLASIK LASIK LASEK LTK PIOL PRK WavePrint Astigmatism Procedures AK Intacs IntraLASIK LASIK LASEK LRI PRK WavePrint Presbyopia Procedures CK Prelex SRP Other Eye Conditions Allergies Amblyopia Cataracts Color Blindness Computer Vision Conjunctivitis Diabetic Retinopathy Dry Eyes Glaucoma Keratoconus Light Sensitivity Low Vision Ocular Hypertension Macular Degeneration Retinal Detachment Retinitis Pigmentosa Ptosis Strabismus Styes Laser Eye Surgery Info: General/Overview Eligibility Advantages Expectations ... Home Keratoconus Keratoconus is a degenerative disease, generally occuring in the late teens to early twenties. As a result of this disease, the cornea bulges and distorts, assuming a conical shape instead of the spherical standard. This leads to distorted and blurred vision. For more information about Keratoconus, visit

49. Moorfields Eye Hospital NHS Trust : Keratoconus keratoconus. keratoconus literally means “conical or coneshapedcornea”. The condition. The cause of keratoconus is unknown. http://www.moorfields.org.uk/EyeHealth/Otherconditions/Keratoconus

Home Eye Health For Patients For Health Professionals ... Enucleation Keratoconus Ptosis Uveitis What to do Anatomy of the eye ... Other conditions Keratoconus printable page Keratoconus The stretching of the cornea tends to progress but the rate varies. Sometimes one eye may be badly affected while the other eye may show very little sign of the condition. The cause of keratoconus is unknown. It may be associated with allergy or could have a genetic component. Keratoconus rarely appears in an individual until puberty or beyond. Although no one can be sure how far keratoconus will develop in an individual, the condition does not cause blindness. With the current treatment available, most people should be able to lead a normal lifestyle despite this condition. However, good vision may be difficult to maintain at times and contact lens tolerance varies. Treatment and further support and information Back to other conditions back to top Home ... Terms and Conditions

50. North Shore Contact Lens & Vision Consultants: Keratoconus Contact Lenses keratoconus Related Disorders A text about keratoconus pellucidmarginal degenerationWhat is keratoconus? What Causes keratoconus? http://www.northshorecontactlens.com/Keratoconus.htm

A primary focus of our practice is the care of the keratoconus patient. As evidence of that commitment, Dr. Epstein serves as Vice President for the Center for Keratoconus and on the Medical Advisory Board for the National Keratoconus Foundation . Dr. Epstein also writes Ask the Doctor , a regular column for the NKCF Newsletter. Our strong focus and success in managing keratoconus draws patients from as far away as Europe, Africa, Asia and South America. However the majority our keratoconus patients come from the NY Metropolitan area. We have extensive experience in treating keratoconus and one of the largest keratoconus practices in the United States. Feel free to contact us if you require information beyond what you find here or in the Keratoconus Links offered at the bottom of this page. For detailed information about keratoconus read Dr. Epstein's text in PDF format: What is Keratoconus? Keratoconus is a disorder that causes progressive thinning and distortion of the cornea - the clear dome at the front of the eye. The cornea normally has a rounded shape, but in keratoconus the thinned area bulges forward to produce a cone like protrusion. This results in progressive distortion and reduced vision. Many keratoconus patients experience blurred distance vision, glare, light sensitivity, disturbed night vision, headaches and reading problems, Keratoconus may affect only one eye but more commonly occurs in both eyes. It affects people of all races and both sexes. Most patients develop keratoconus in their late teens to early twenties although it can begin at any age. Pellucid marginal degeneration (PMD) is a corneal thinning disorder related to keratoconus that primarily affects the inferior cornea.

51. Emory Eye Center Press Releases keratoconus. keratoconus is service. keratoconus usually affects botheyes and requires careful contact lens management. . Typically http://www.emory.edu/EYE_CENTER/Concerns_Services/keratoconus _frame.html

Keratoconus "Keratoconus is a progressive eye condition that sometimes is difficult to diagnose," says Michael Ward, FCLSA, director of Emory Eye Center's contact lens service. "Keratoconus usually affects both eyes and requires careful contact lens management." Typically appearing during the teens to early 20s, keratoconus causes the cornea to thin and form scar tissue, until the eye is cone shaped. Since the cornea is responsible for most of the eyes' refraction, any disruption can cause considerable visual distortion that may not be corrected with spectacles. Individuals with keratoconus require specially designed contact lenses to manage vision. Common misconception: That contact lenses halt the progress of keratoconus. In fact, the lenses simply improve vision while the condition is developing. "However, improperly fitted lenses may worsen the condition by increasing the rate of scar tissue formation," says Ward. Research: A gene has now been identified. However, it does not act alone; it may require other genes or environmental influence to manifest itself. Additionally, it does seem to run in some families.

52. ComfortKone Metro-Optics Metro Optics, ComfortKone keratoconus aspheric,is the most advanced lens for keratoconus. http://www.metro-optics.com/comfortkone.html

Comfort Kone keratoco us aspheric, is the most advanced lens for keratoconus Actual corneal topography and fluorescein pattern of patient fit with ComfortKone. Note: 64.00 Diopter cone peak, with 7.00 Diopter change to periphery in any stage. Comfort Kone is a true aspheric lens and the design is based on radius changes rather than eccentricity values. This design philosophy creates a consistent fitting system and makes kerataconus fitting a straightforward procedure. Examine the corneal topography and fluorescein examples shown. Results of this nature are typical for this lens. Comfort Kone incorporates a small spherical lens optic zone that fits the peak of the cone and provides the patient with good visual acuity. The lens then flattens into an aspheric curve. this is the fitting curve and creates the alignment and comfort of the lens. There are two peripheral curves, which are also aspheric and complete the comfortable alignment. This curvature combination provides a physically compatible fit to the keratoconic slope. A Comfort Kone comprehensive fitting guide can be obtained from our customer service department or can be downloaded from our web site. Sophisticated manufacturing systems featuring the latest technology give the Comfort

53. ComfortKone Metro-Optics Metro Optics, ComfortKone keratoconus aspheric, is themost advanced lens for keratoconus in any stage. http://www.metro-optics.com/comfortkone2p.html

Comfort Kone keratoconus aspheric, is the most advanced lens for keratoconus Actual corneal topography and fluorescein pattern of patient fit with ComfortKone. Note: 64.00 Diopter cone peak, with 7.00 Diopter change to periphery. in any stage. Comfort Kone incorporates a small spherical lens optic zone that fits the peak of the cone and provides excellent visual acuity. The lens then flattens into an aspheric curve. This is the fitting curve and creates the alignment and comfort of the lens. There are two peripheral curves, which are also aspheric and complete the comfortable alignment. This curvature combination provides a physically compatible fit to the keratoconic slope. Sophisticated manufacturing systems featuring the latest technology give the Comfort Kone consistent performance, optical accuracy and reproducibility. Comfort Kone can also be produced in both toric and asymmetric toric designs. This allows for fitting corneas that were highly astigmatic prior to the onset of keratoconus, or those having other types of corneal degeneration. MetroOptics 2003

54. Virtual Hospital: Pediatric Ophthalmology About keratoconus. Christine 2002. keratoconus is an irregular protrusionof the cornea, the clear surface over the colored part of the eye. http://www.vh.org/adult/patient/ophthalmology/keratoconus/

For Patients About Keratoconus Christine Sindt, O.D. Peer Review Status: Internally Reviewed Creation Date: April 2001 Last Revision Date: April 2002 Keratoconus is an irregular protrusion of the cornea, the clear surface over the colored part of the eye. The cornea acts like the windowpane to the eye. If this windowpane is not smooth, the light will not bend evenly and an irregular image will be formed. Like looking through a bumpy piece of glass. During the early stages of this disease, vision may still be correctable to 20/20 with glasses. The only clue to a keratoconus diagnosis may be from corneal measurements or corneal map. A topographical map of the cornea will show the high and low spots on the cornea, much like a topographical map of the earth will show the mountains and oceans. As this disease progresses, vision will no longer be correctable with glasses. Iron will deposit around the base of the protrusion. The tissue will thin and a scar may develop. In severe cases, a temporary painful condition called acute hydrops may occur when water rushes into the thinned area of the cornea. This will lead to severe scarring. About one in 2000 people will develop keratoconus. Most people will have a mild or moderate form of the disease. Only 10% of keratoconics will develop the most severe form. It typically is diagnosed in the late teens or twenties. However, many people have been diagnosed in their mid to late thirties; this is usually a more mild form of the disease. One eye will precede the other and they will progress at uneven rates. The eyes may go for long periods of time without any change and then may change dramatically over a period of months.

55. Keratoconus Eye. keratoconus. keratoconus is type of corneal dystrophy that leads to gradualthinning of the cornea due to deterioration of the tissue. keratoconus http://jhhs.client.web-health.com/web-health/topics/GeneralHealth/generalhealths

56. Clinical Studies - Collaborative Longitudinal Evaluation Of Keratoconus (CLEK) S Collaborative Longitudinal Evaluation of keratoconus (CLEK) Study, The. The incidenceof visionthreatening corneal scarring in keratoconus is unknown. http://www.nei.nih.gov/neitrials/static/study57.htm

CS Home Search for a Study Participate in a Study Refer a Patient to a Study ... NEI Home 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.

57. KeratoconusInserts.com - What Is Keratoconus? Home. About Dr Boxer Wachler. What Is keratoconus? INTACS® Treatment, Benefits, Risks. Other Treatments. Will Insurance Cover? What Is keratoconus? http://www.keratoconusinserts.com/what.htm

Home About Dr Boxer Wachler What Is Keratoconus? INTACS ... FAQs What To Expect Links Patient Experiences The Next Step: Will Insurance Cover? What Is Keratoconus? Keratoconus is a progressive non-inflammatory disorder that causes a characteristic thinning and cone-like steepening of the cornea. This steepening results in distortion of vision, increased sensitivity to glare and light and an associated reduction in visual acuity. These symptoms usually appear in the late teens and early twenties. Keratoconus may progress for 10-20 years and then can slow or even stabilize. Each eye can be affected differently. This can result in a dramatic decrease in the ability to see clearly even with corrective lenses. Eyeglasses or soft contact lenses may be used to correct the mild nearsightedness and astigmatism in the early stages of keratoconus. As the disorder progresses and the cornea continues to thin and change shape, rigid gas permeable (RGP) contact lenses can be prescribed. The contact lenses must be carefully fitted, and frequent checkups and lens changes may be needed to achieve and maintain adequate vision.

58. Cornea Transplant Surgery keratoconus Web Sites. There are several other keratoconus web sites, one ofthe best is http//www.keratoconus.com and it is a good place to start. http://www.catransplant.org/keratoconus.htm

Search MEDLINEplus Search the Web for: Use Advanced Search If you are a cornea recipient and wish to write to your donor's family click here If you are a member of a donor family and wish to write to your recipient click here Julia Moseley's Cornea Transplant Diary On February 9, 1999, Julia Moseley had cornea transplant surgery. "I had this surgery because a disease called keratoconus had made the vision in my right eye, even with a rigid gas permeable (RGP) contact lens, very poor." Julia has documented her surgery for all of us. Read more about the daily outcome of Julia's cornea transplant click on the link below: http://www.nwlink.com/~juliam/index.html Julia, for the record, has no commercial affiliation with California Transplant Services, Inc., a non profit eye and tissue bank, and has graciously allowed a link to her website. Hank Wirtz's Cornea Transplant Diary Hank Wirtz had a cornea transplant on October 20, 1999. Here is a comprehensive diary with step-by-step photos from his surgery video. You can follow his observations and results by clicking the link below. http://www.wirtznet.net/transplant/

59. Eye Conditions & Problems keratoconus. What is keratoconus? keratoconus is a condition wherethe cornea develops a distorted shape producing blurred vision. http://eugeneeyecare.com/conditions/Keratoconus.html

Home Page Opti-Sport Prescription Swim Goggles Cataracts Diabetic Eye Disease ... Glaucoma Keratoconus Macular Degeneration Ophthalmic Migraine Overflow Tearing and Chronic Eye Infections in Infants Plaquenil-related Eye Problems ... Contact Us Keratoconus What is Keratoconus? The cornea is the clear window at the front of the eye. Keratoconus is a condition where the cornea develops a distorted shape producing blurred vision. The eye is normally shaped round like a basketball. With nearsightedness, the cornea is too large and with farsightedness, the eye is too short. With astigmatism, the eye is shaped more like a football rather than a basketball. In other words, it is curved more in one direction than in the direction 90 degrees away. This "football shaped" cornea is what produces the distortion with astigmatism. Associated with this change in corneal shape, is a thinning of the central part of the cornea which eventually produces a "bulge" in the center of the cornea (see photo below). Thus, the name "keratoconus". "Kerato" means cornea and "conus" means cone shaped. The conical shape produces distortion of vision. The football shape analogy produces "regular" astigmatism. This is where the "football" or cornea is shaped differently but is a smooth curvature. In keratoconus, the cornea develops "irregular" astigmatism. This is where each direction of the football shaped cornea has a non-smooth surface much like the peaks and valleys of a mountain range. This produces severe distortion of vision.

60. EMedicine - Keratoconus : Article By Barry Weissman, OD, PhD keratoconus keratoconus (KC) is a progressive, noninflammatory, bilateral (butoften asymmetric) disease of the cornea, characterized by paraxial stromal http://www.emedicine.com/oph/topic104.htm

(advertisement) Home Specialties CME PDA ... Patient Education Articles Images CME Patient Education Advanced Search Link to this site Back to: eMedicine Specialties Ophthalmology Cornea Keratoconus Last Updated: April 26, 2001 Rate this Article Email to a Colleague AUTHOR INFORMATION Section 1 of 11 Author Information Introduction Clinical Differentials ... Bibliography Author: Barry Weissman, OD, PhD , Chief of Contact Lens Service, Professor, Department of Ophthalmology, Jules Stein Eye Institute, University of California at Los Angeles Editor(s): Fernando H Murillo-Lopez, MD , Instructor, Department of Ophthalmology, Bolivian National Institute of Ophthalmology; Donald S Fong, MD, MPH , Assistant Clinical Professor of Ophthalmology, UCLA School of Medicine; Consulting Physician, Department of Ophthalmology, Southern California Permamente Medical Group; Christopher J Rapuano, MD , Co-Chairman of Refractive Surgery Department, Associate Professor, Cornea Service, Wills Eye Hospital, Jefferson Medical College; Lance L Brown, OD, MD

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