41. Boston Scleral Lens Or The MiniScleral Lens Can Provide Incredibly Good Vision F Boston foundation for Sight uses the Boston Scleral lens to improve vision for those with keratoconus. FOR PATIENTS. Do you have keratoconus? http://www.bostonsight.org/keratoconus.htm

FOR PATIENTS Do you have Keratoconus? Keratoconus Distorts the Shape of the Cornea. Keratoconus is a disease of young people, typically beginning in the teens. In many cases, the condition does not advance and the vision remains correctable with glasses. If keratoconus advances so that spectacles are no longer adequately helpful, rigid gas-permeable (GP) contact lenses are often capable of improving vision to functional levels. Since keratoconus distorts the shape of corneas, contact lens fitting poses significant challenges to the fitter and contact lens designers. Keratoconus and Contact Lenses Over the past decades, new contact lens designs have been developed that have increased the effectiveness of these lenses for those with Keratoconus. However, this often requires specialized skills and there are many practitioners who have developed considerable expertise in fitting keratoconic lenses. More About Keratoconus If you have been diagnosed as suffering from keratoconus, this is what you should know:

42. Keratoconus keratoconus. Corneal scar from previous hydrops, Fleischer s ring (arrowed) around the cone. Vogt s striaes in keratoconus, Enlarged corneal nerves in 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).

43. HealthlinkUSA Keratoconus Links FindWhat. You can find keratoconus right now at Info.com. Kanoodle.com. Click here for page 1 of keratoconus information from the HealthlinkUSA directory. http://www.healthlinkusa.com/172ent.htm

44. Eyeatlas - Online Atlas Of Ophthalmology Eyeatlas. The online Atlas of Ophthalmology. keratoconus. © Copyright Oculisti OnLine. http://www.eyeatlas.com/box/183.htm

Eyeatlas The online Atlas of Ophthalmology Keratoconus Oculisti OnLine

45. Eyeatlas - Online Atlas Of Ophthalmology Eyeatlas. The online Atlas of Ophthalmology. keratoconus apex syndrome. © Copyright Oculisti OnLine. http://www.eyeatlas.com/box/66.htm

Eyeatlas The online Atlas of Ophthalmology Keratoconus: apex syndrome Oculisti OnLine

46. Keratoconus | American Optometric Association keratoconus Eye Diseases, keratoconus is a vision disorder that occurs when the normally round cornea (the front part of the eye) becomes thin and irregular http://www.aoa.org/eweb/DynamicPage.aspx?site=AOAstage&WebCode=Keratoconus

47. Keratoconus: Diagnosis And Management keratoconus Diagnosis and Management. Dennis Burger, OD, FAAO Joseph P. Shovlin, OD, FAAO, Karla Zadnik, OD, PhD, FAAO Figure 12. keratoconus lens systems. http://www.opt.pacificu.edu/ce/catalog/web013/course.htm

Keratoconus: Diagnosis and Management Dennis Burger, OD, FAAO Joseph P. Shovlin, OD, FAAO, Karla Zadnik, OD, PhD, FAAO Course List Home Contact Bibliography ... Bios Introduction Etiology The proposed etiology of keratoconus includes biochemical and physical corneal tissue changes, but no one theory fully explains the clinical findings and associated ocular and non-ocular disorders. It is possible that keratoconus is an end result or final common pathway of many different clinical conditions. It has been found in association with hereditary predisposition, atopic disease, certain systemic disorders, and rigid contact lens wear. Corneal tissue change - whether in the stroma or the epithelium and its basement membrane - has long been proposed as the cause of keratoconus. Teng (13) originally proposed the epithelium as the primary site of abnormal tissue because the earliest histopathologic change occurs there. Now many researchers believe that the primary site is the stroma and that tissue change occurs because of destruction of stromal tissue by collagenase (14-16). If research can identify the ultrastructural or biochemical abnormality causing keratoconus, it may then be possible to intervene in the disease process to halt or even reverse its expression. Hereditary factors seem to play some role in the development of keratoconus (17,18) which may be inherited as a dominant or recessive trait (6,9). Hammerstein (18) found that in families in which one member had keratoconus, the incidence of keratoconus in other family members was 8%. Rabinowitz et al (17) showed a high prevalence of keratoconic, corneal topographic abnormalities in family members of keratoconus patients.

48. Keratoconus keratoconus. What is keratoconus? This condition is called keratoconus. What causes keratoconus? Often the cause of keratoconus is unknown. http://www.clevelandclinic.org/health/health-info/docs/3400/3434.asp?index=10713

49. Cole Eye Institute - Patient Information keratoconus. What is keratoconus? The normal pressure inside the eye makes the cornea bulge outward like a cone, and this condition is called keratoconus. http://www.clevelandclinic.org/eye/patient_info/keratoconus.asp

Keratoconus Keratoconus What is keratoconus? We see through the cornea, which is the clear, central part of the front surface of the eye. The cornea normally has a round shape, like a ball. Sometimes, however, the structure of the cornea is just not strong enough to hold this round shape. The normal pressure inside the eye makes the cornea bulge outward like a cone, and this condition is called keratoconus. Why do people get keratoconus? Often the cause of keratoconus is unknown. Some studies have found that keratoconus runs in families, and that it happens more often in people with certain medical conditions. But most often, there is no eye injury or disease that could explain why the eye starts to change. Keratoconus usually begins in the teen-age years, but it can also start in childhood or up to about age 30. The changes in the shape of the cornea occur slowly, usually over several years. Someone with keratoconus will notice that vision slowly becomes distorted. The change can stop at any time, or it can continue for several years. In most people who have keratoconus, both eyes are eventually affected. Can keratoconus damage vision?

50. Keratoconus Up. This is a condition that is characterized clinically by a thinning of the cornea which leads to ectasia centrally with a cone http://insight.med.utah.edu/opatharch/cornea/keratoconus.htm

Home Up Contributors Submission Information ... Site Map This is a condition that is characterized clinically by a thinning of the cornea which leads to ectasia centrally with a cone-like out-pouching of the cornea. Histologically, the epithelium and the stroma of the cornea centrally are often thinned(#21967). There can also be multiple focal disruptions of epithelial basement membrane and Bowman's layer anteriorly (#21968). In addition, Descemet's membrane may rupture in this condition resulting in acute corneal edema or hydrops. High Power #21968 Low Power #21967 Home Up Conjunctiva Glaucoma ... Site Map John A. Moran Eye Center 50 North Medical Drive Salt Lake City UT 84132 Telephone 801.581.2581 Fax 801.581.3357

51. Keratoconus, Cornea Transplant, Cornea, Genetic Eye Medical Institute, Los Angel CorneaGenetic Eye Medical Institute. Mark Goodson Building, Cedars-Sinai Medical Center. http://www.keratoconus.com/

Cornea-Genetic Eye Medical Institute Mark Goodson Building, Cedars-Sinai Medical Center Affiliated with the Medical Genetics Birth Defect Center at Cedars-Sinai Medical Center in Los Angeles, California, our clinic offers specialty consultation in cornea, refractive surgery (LASIK), and pediatric congenital diseases of the eye. Offices in Los Angeles, Santa Clarita and Lancaster. Cornea Genetic Eye Institute Mark Goodson Building, Cedars Sinai Medical Center 444 S. San Vicente Blvd, Suite 1102 Los Angeles, CA 90048 Voice: 1-310-423-9640 Los Angeles Office Location Lancaster Office Location Santa Clarita Office Location About the Director ... How to Contact Us Last Update April 4, 2002

52. Medicdirect - Comprehensive UK Health Information keratoconus Definition. Incidence/age. The incidence of keratoconus is uncertain but probably occurs in between 50 and 200100,000 of the population. http://www.medicdirect.co.uk/diseases/default.ihtml?pid=890&step=4

53. Keratoconus - Information / Diagnosis / Treatment / Prevention home eye disorders keratoconus keratoconus. Dwyer, Dave and Joan Offers personal information about keratoconus and links to other resources. http://www.healthcyclopedia.com/eye-disorders/keratoconus.html

Home Health cyclopedia All Topics by Category The Good Health Search Engine Health Conditions A-Z Gurus ... cornea > keratoconus Keratoconus Information / Diagnosis / Treatment / Prevention External links (marked with an arrow ) open in a new window. This site is a web directory and does not offer medical advice. We cannot take responsibility for information found on listed sites. This Page Medical Definition Health News Web Directory: Medical Definition: University of Newcastle-upon-Tyne Medical Dictionary: "keratoconus" Health News: Search millions of published articles for news on Keratoconus Modern Medicine Aging The Ardell Wellness Report HealthFacts Medical Post Medical Update Men's Health and the National Women's Health Report Note: Subscription required to access the full text of articles. Web Directory: Angeles Vision Clinic Offers pictures, symptoms, and treatment options for Keratoconus as well as other eye conditions. 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

54. USAeyes.org - Keratoconus And LASIK, LASEK, PRK, CK, Etc. keratoconus and LASIK, LASEK, PRK, CK, etc. keratoconus occurs when an area of the cornea becomes weak and gradually bulges outward. http://www.usaeyes.org/faq/subjects/keratoconus.htm

You are visitor Navigation... HOME SEARCH Services... LOCATE A CRSQA CERTIFIED LASIK SURGEON ASK THE LASIK EXPERTS LASIK COMPLICATIONS? HELP IS AT HAND Need to know... 50 TOUGH QUESTIONS FOR YOUR LASIK DOCTOR WHAT CRSQA CERTIFICATION MEANS Community... LASIK BULLETIN BOARD LASIK GUEST BOOK Research... KNOW WHAT YOU DON'T KNOW ABOUT LASIK SHOULD YOU DO LASIK? BAD RESULTS ... REPORT A BAD LASIK DOCTOR Doctors... BECOME CERTIFIED About us... LEARN ABOUT US CRASS COMMERCIALISM Contact us... CONTACT US Keratoconus and LASIK, LASEK, PRK, CK, etc. Keratoconus is a contraindication for LASIK LASEK , and PRK refractive surgery techniques, an indication for Intacs , and may not be problematic for CK LASIK, LASEK, and PRK refractive surgery procedures thin the cornea by removal of tissue and/or creation of an incision across the cornea. Due to the high probability that these procedures may further weaken a cornea affected by keratoconus, these procedures are not recommended. CK does not reduce the thickness of the cornea and theoretically would not be problematic for keratoconus patients, but studies have not been published to confirm this assumption. Recently it has been found that Intacs, which are normally used for refractive purposes, have caused stabilization in keratoconus patients and may be a good choice to reduce the possibility of keratoconus advancement.

55. Keratoconus Eye Center Logo. keratoconus (ConeShaped Cornea) (Espanol-click) Reviewed Last Updated 3/01/92 Created 3/01/92 Revised What is keratoconus? http://www.uic.edu/com/eye/LearningAboutVision/EyeFacts/Keratoconus.htm

PATIENT CARE RESEARCH EDUCATION DEPARTMENT ... HOME Eye Facts is intended as an informational series and should not be used as a substitute for medical advice. These statements are guidelines only. There may be other safety measures, which are not included here. If you wish to make an eye appointment at the UIC Eye Center, call (312) 996-8491. Quicklinks eyePRO Clinics Eye Conditions Doctors Directions Grand Rounds Phonebook Eye Facts Allergic Conjunctivitis Baby-Your Baby's Eyes Blepharoplasty-Eye Lift ... Eye Site Keratoconus (Cone-Shaped Cornea) (Espanol-click) Reviewed: Last Updated: 3/01/92 Created: 3/01/92 Revised: What is Keratoconus? Keratoconus is an eye condition in which the shape of the cornea becomes distorted. The cornea is a clear structure that covers the front of the eye and allows light to enter the eye. In a healthy eye, the cornea curves like a dome. In an eye with keratoconus, the center of the cornea slowly thins and bulges, so that it sags and has a cone shape (see illustration). In keratoconus, the posterior layer may tear in rare cases. When this happens, the cornea may suddenly become swollen with water (termed hydrops).Wrinkles and scars may also form on a keratoconus cornea.

56. Keratoconus Eye Conditions. keratoconus. keratoconus is an eye condition in which the shape of the cornea becomes distorted. Eye Facts Article keratoconus. http://www.uic.edu/com/eye/Patient Care/EyeConditions/Keratoconus.htm

57. Keratoconus, UPMC | University Of Pittsburgh Medical Center, Pittsburgh, PA, USA A comprehensive resource describing the causes, symptoms, diagnosis, and treatment of 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 HealthGate Data Corp Terms and Conditions

58. Keratoconus, Overview, UPMC | University Of Pittsburgh Medical Center, Pittsburg keratoconus. Overview. The cause of keratoconus is not well understood. Heredity as well as vigorous eye rubbing has been http://eye.upmc.com/Keratoconus/Overview.htm

Home var ppb = "Keratoconus Overview The cause of keratoconus is not well understood. Heredity as well as vigorous eye rubbing has been known to play a role in the development of keratoconus. It is also more commonly found in patients with Down Syndrome. Most patients are diagnosed with keratoconus in their teenage years and experience deteriorating vision for another decade or so. Patients with keratoconus have very poor vision, characterized by distortion and glare that cannot be corrected with glasses. Severe astigmatism develops as the disease progresses. Patients with advanced keratoconus may experience corneal hydrops, a condition in which the deep layers of the cornea rupture, allowing fluid to enter. Until the fluid clears, hydrops may be painful, and it also can leave a scar, further reducing vision. The vision may become so poor that it disables the patient. While a patient's vision can be improved with glasses early in the course of the disease, many patients will ultimately require the use of a rigid gas permeable lens to reshape the irregular corneal surface. A small percentage of patients who have keratoconus will require a corneal transplant.

59. Moorfields Eye Hospital NHS Trust : Keratoconus keratoconus. keratoconus literally means “conical or coneshaped cornea”. 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

60. Keratoconus - Medical Dictionary Definitions Of Popular Medical Terms keratoconus Coneshaped cornea with the apex of the cone being forward. Also called conical cornea. http://www.medterms.com/script/main/art.asp?articlekey=4095

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