Infobox disease Name Glaucoma Image Acute angle closure glaucoma.JPG Caption Acute angle closure glaucoma ... D005901 Glaucoma is an eye disease in which the optic nerve is damaged in a characteristic pattern ... http www.merckmanuals.com home sec20 ch233 ch233a.html title Merck Manual Home Edition, Glaucoma publisher ..., the term normal tension or low tension glaucoma is used for those with optic nerve damage and associated ... s in a characteristic pattern. There are many different subtypes of glaucoma, but they can all be considered ... on disp or is the most important and only modifiable risk factor for glaucoma. However, some may ... damage at a relatively low pressure. Untreated glaucoma can lead to permanent damage of the optic nerve and resultant visual field loss, which over time can progress to blindness . Glaucoma can be roughly divided into two main categories, open angle and closed angle or angle closure glaucoma. The angle ... meshwork. Closed angle glaucoma can appear suddenly and is often painful visual loss can ... damage occurs. Open angle, chronic glaucoma tends to progress at a slower rate and patients may not notice they have lost vision until the disease has progressed significantly. Glaucoma has been called ... be recovered and so treatment is aimed at preventing further loss. Worldwide, glaucoma is the second ... NEWS statements marij.asp National Eye Institute Statement Glaucoma and Marijuana use. ref Glaucoma ... with medical and surgical means. The word glaucoma comes from the Greek language Greek , opacity of the crystalline lens. Cataracts and glaucoma were not distinguished until c.1705 . ref cite web url http www.etymonline.com index.php?search glaucoma title Online Etymology Dictionary, Glaucoma ... main types of glaucoma open angle glaucoma and closed angle glaucoma also called angle closure glaucoma . Open angle glaucoma accounts for 90 of glaucoma cases in the United States. It is painless ..., circumcorneal flush and hazy cornea characteristic of acute angle closure glaucoma Closed angle ... more details
A glaucoma valve is a shunt medical medical shunt used in the treatment of glaucoma to reduce the human eye eye s intraocular pressure IOP . Mechanism The device works by bypassing the trabecular meshwork and redirecting the outflow of aqueous humor through a small tube into an outlet chamber or bleb medicine bleb . The IOP generally decreases from around 33 to 10 mmHg by removing aqueous on average 2.75 microliters min. ref Brubaker RF. Flow of aqueous humor in humans The Friedenwald Lecture . Invest ... glaucoma drainage implants. These include the original Molteno implant 1966 , the Baerveldt tube shunt , or the valved implants, such as the Ahmed glaucoma valve implant and the later generation pressure ridge Molteno implants. These are indicated for glaucoma patients not responding to maximal ... The glaucoma valve implant is indicated for glaucoma patients not responding to maximal medical ... drainage surgery is unlikely to succeed. Common situations where the use of a glaucoma implant as a primary procedure is indicated include Neovascular glaucomaglaucoma associated with vascular disease ... glaucomaglaucoma associated with injury to the eye. Silicone glaucomaglaucoma due to Silicone used to repair a detached retina. Infantile Juvenile glaucoma often associated with developmental defects ... technique for inserting a draining implant in the treatment of secondary glaucoma. Aust N Z J Ophthalmol ... intraocular pressure IOP . Valved implants such as the Ahmed glaucoma valve attempt to control postoperative hypotony by using a mechanical valve. Studies show that in severe cases of glaucoma, double ... glaucoma valve ref name AhmedCompare Ayyala RS, Zurakowski D et al. Comparison of double plate Molteno and Ahmed glaucoma valve in patients with advanced uncontrolled glaucoma. Ophthalmic Surg Lasers ... div See also Eye surgery Glaucoma surgery External links http biomed.brown.edu Courses BI108 2006 108websites group02glaucoma index.html Glaucoma Valves website at Brown University Category Implants Category ... more details
National Institutes of Health NIH National Eye Institute Glaucoma in dogs refers to a group ... glaucoma above convert 22 mmHg abbr on disp or . Untreated glaucoma in dogs leads to permanent damage of the optic nerve and resultant visual field loss, which can progress to blindness . Canine glaucoma can be divided roughly into two main categories, primary or secondary glaucoma . In dogs, most forms of primary glaucoma are the result of a collapsed filtration angle, or closed angle glaucoma. Clinical Signs Dog glaucoma often goes unnoticed until it is in a more severe state. There are rarely ... are important. Dogs will sometimes rub the eye if it is painful. An eye affected with glaucoma ... are predisposed to getting glaucoma . Primary glaucoma most commonly afflicts dogs at 3 7 years of age ... terriers, bassett hounds and Dalmatian dog Dalmatians . However, primary glaucoma has been identified ... for dog glaucoma has several options, with surgery often being the most effective for long term management ... with end stage glaucoma. Intraocular Evisceration & Implantation The inner contents of the eye are removed ... 1yr in a pilot study in medically refractory dogs with advanced glaucoma ref name Roberts2008 Roberts ..., Boston, MA. ref Valved Shunts There are also several different glaucoma drainage implants. These include ... glaucoma valve implant or the ExPress Mini Shunt and the later generation pressure ridge Molteno implants . These are indicated for glaucoma patients not responding to maximal medical therapy ... title The vicryl tie technique for inserting a draining implant in the treatment of secondary glaucoma ... drops in postoperative intraocular pressure IOP . Valved implants such as the Ahmed glaucoma valve attempt ... and some cases of Glaucoma, Cyclocryotherapy for ciliary body ablation could be considered to be performed. ref name Pardianto2006 cite journal author Pardianto G et al. title Some difficulties on Glaucoma ... www.petglaucoma.com Pet Glaucoma Website. Eye pathology DEFAULTSORT Canine Glaucoma Category Diseases ... more details
Interventions infobox Name Glaucoma surgery Image Caption ICD10 ICD9 ICD9proc 12.1 ICD9proc 12.7 MeshID OPS301 OtherCodes HCPCSlevel2 Glaucoma is a group of diseases affecting the optic nerve that results ... glaucoma surgeries, and variations or combinations of those surgeries, that facilitate the escape ... for Glaucoma ref The two types of laser trabeculoplasty are argon laser trabeculoplasty ALT and selective ... ref http www.glaucoma.org treating a new type of g.html Glaucoma Research Foundation SLT A New Type of Glaucoma Surgery ref SLT shows promise as a long term treatment. ref http www.revophth.com index.asp?page 1 361.htm Review of Ophthalmology SLT for Glaucoma Threapy Selective Laser Trabeculoplasty ... in patients with angle closure glaucoma. A laser peripheral iridotomy LPI is the application of a laser ... chronic open angle glaucoma journal Br J Ophthalmol volume 81 issue 4 pages 302 7 year 1997 month April ... sclerostomy in glaucoma surgery journal Curr Opin Ophthalmol volume 6 issue 2 pages 102 14 year 1995 ... http www.jdosmp.org glaucoma filtering surgeries.html ref Penetrating filtering surgeries are further ... oph 138 Glaucoma, Primary Congenital ref ref name Aniridia EMedicine oph 317 Aniridia in the Newborn ... the eye. ref name emedh http www.emedicinehealth.com articles 38365 6.asp Primary Congenital Glaucoma ... and laser trabecular ablation . In many patients suffering from congenital glaucoma, the cornea ... involves the placement of a tube or glaucoma valve s to facilitate aqueous outflow from the anterior ... laser trabeculopuncture in open angle glaucoma journal Ophthalmology volume 92 issue 7 pages 931 7 ... treatment of chronic simple glaucoma journal Ophthalmologica volume 179 issue 4 pages 189 200 year ... is a surgical division of the ciliary zone in the treatment of glaucoma. ref name Cline ref ... glaucoma sugeries. The first of these advantages is an improved safety profile over trabeculectomy ... a microcatheter to treat open angle glaucoma journal Journal of Cataract and Refractive Surgery ... more details
The American Glaucoma Society is a subspecialty society in ophthalmology that promotes education and research about glaucoma among physicians and scientists . Founded in 1985 by thirteen original members, it now has more than 400 members. See also Charles D. Phelps External links http www.glaucomaweb.org index.cfm American Glaucoma Society med org stub January 2007 Category Medical associations based in the United States Category Ophthalmology organizations Category Organizations established in 1985 US health org stub ... more details
The cup to disc ratio is a measurement used in ophthalmology and optometry to assess the progression of glaucoma . The optic disc is the anatomical location of the eye s blind spot , the area where the optic nerve and blood vessels enter the retina. The optic disc can be flat or it can have a certain amount of normal cupping. But glaucoma, which is due to an increase in intra ocular pressure, produces additional pathological cupping of the optic disc. The pink rim of disc contains nerve fibers. The white cup is a pit with no nerve fibers. As glaucoma advances, the cup enlarges until it occupies most of the disc area. ref http www.agingeye.net glaucoma glaucomainformation.php AgingEye Times ref The cup to disc ratio compares the diameter of the Optic cup ophthalmology cup portion of the optic disc with the total diameter of the optic disc. A good analogy to better understand the cup to disc ratio is the ratio of a donut hole to a donut. The hole represents the cup and the surrounding area the disc. If the cup fills 1 10 of the disc, the ratio will be 0.1. If it fills 7 10 of the disc, the ratio is 0.7. A large cup to disc ratio may imply glaucoma or other pathology. ref http www.agingeye.net glaucoma glaucomaeyeexam.php ref However, cupping by itself is not indicative of glaucoma. Rather, it is an increase in cupping as the patient ages that is an indicator for glaucoma. Deep but stable cupping can occur due to hereditary factors without glaucoma. References reflist Category Ophthalmology ... more details
Trabeculoplasty is a treatment for glaucoma plastic surgery. It is done on a argon laser equipped slit lamp, using a Goldmann gonioscope lens mirror. The laser is directed to the trabecula r meshwork. Specifically, argon laser is used so that small openings in the eye s trabecular meshwork, from which the aqueous humor can drain better this helps reduce intraocular pressure caused by Glaucoma Classification open angle glaucoma . ref name webmd cite web url http www.webmd.com eye health laser trabeculoplasty for glaucoma title Laser trabeculoplasty for glaucoma publisher WebMD accessdate 2009 07 23 ref See also Laser surgery Eye surgery Trabeculectomy References reflist Eye surgery Category Eye surgery surgery stub eye stub ... more details
Orphan date August 2008 George Baerveldt , M.B.Ch.B., is a Professor in the Department of Ophthalmology at the University of California, Irvine . Baerveldt developed and currently holds four patents related to the Baerveldt glaucoma implant Baerveldt Glaucoma Implant , a device for the drainage of excess fluid from the eye in complex cases of glaucoma . Professor Baerveldt is also one of the inventors of the Trabectome , a device for minimally invasive glaucoma surgery. External links http www.ucihs.uci.edu uceye baerveldt.html George Baerveldt, M.D. . UC Irvine Department of Ophthalmology. http www.neomedix.net Home Trabectome . Manufacturer s Website. http www.amo inc.com products cataract glaucoma implants Baerveldt Glaucoma Implant . Manufacturer s Website. Persondata Metadata see Wikipedia Persondata . NAME Baerveldt, George ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Baerveldt, George Category Living people Category American ophthalmologists US med bio stub ... more details
COAG may refer to Chronic open angle glaucoma Coordinadora de Organizaciones de Agricultores y Ganaderos Council of Australian Governments disambig Long comment to avoid being listed on short pages ... more details
wiktionary Pex may refer to Palestine Securities Exchange PEX , Palestine Exchange Peer exchange , a method to gather peers for BitTorrent PEX , the common name for cross linked high density polyethylene PEX, in programming the PHIGS Extension to X in medicine, abbreviation for physical examination Pseudoexfoliation syndrome , sometimes abbreviated as PEX, condition related to glaucoma http health.nytimes.com health guides disease glaucoma print.html NY Times reference Cross linked polyethylene disambig ... more details
H42 or H 42 may refer to H 42 Michigan county highway HMS H42 , a 1919 British Royal Navy H class submarine HMS Arrow H42 , a 1929 British Royal Navy A class destroyer and also Glaucoma ICD 10 code Letter NumberCombDisambig ... more details
Pigment dispersion syndrome PDS is an affliction of the human eye eye that can lead to a form of glaucoma known as pigmentary glaucoma . It takes place when pigment cells slough off from the back of the Iris anatomy iris and float around in the aqueous humor . Over time, these pigment cells can accumulate in the anterior chamber in such a way that it can begin to clog the trabecular meshwork the major site of aqueous humour drainage , which can in turn prevent the aqueous humour from draining and therefore increases the pressure inside the eye. With PDS, the intra ocular pressure tends to spike at times and then can return to normal. Exercise has been shown to contribute to spikes in pressure as well. When the pressure is great enough to cause damage to the optic nerve , this is called pigmentary glaucoma. As with all types of glaucoma, when damage happens to the optic nerve fibers, the vision loss that occurs is irreversible and painless. This condition is rare, but occurs most often in Caucasians, particularly men, and the age of onset is relatively low mid 20s to 40s. For some reason, after 40 years of age, the syndrome lessens and stops. Most sufferers are nearsighted . There is no cure as of yet, but pigmentary glaucoma can be managed with eye drops or treated with simple surgeries. One of the surgeries is the YAG laser procedure in which a laser is used to break up the pigment clogs, and reduce pressure. If caught early and treated, chances of glaucoma are greatly reduced ... links http www.globalglaucoma.com.mx Global Glaucoma Institute Mexico http www.glaucoma.net nygri glaucoma topics pigmentary.html NY Glaucoma Research Institute http www.glaucoma.org learn pigment dispers.php Glaucoma Research Foundation http revoptom.com handbook oct02 sec4 4.htm Handbook of Ocular ... nqcontent.cfm?a id 723 International Glaucoma Association Category Diseases of the eye and adnexa eye stub it Glaucoma pigmentario nl Pigmentdispersiesyndroom ... more details
Context date June 2009 Refimprove date June 2009 Expert subject anatomy date April 2009 Role in treatment of Glaucoma Open angle glaucoma OAG and closed angle glaucoma CAG may be treated by muscarinic receptor agonists e.g., pilocarpine , which cause rapid miosis and contraction of the ciliary muscles, this pulls the scleral spur and results in the trabecular meshwork being stretched and separated. This opens the fluid pathways and facilitates drainage of the aqueous humour into the canal of Schlemm and ultimately decreasing intraocular pressure . ref Neal, M. J. 2004 . Medical Pharmacology at a Glance 6th edition . Wiley Blackwell. p. 27. ISBN 978 1 4051 5044 6 ref References Reflist DEFAULTSORT Scleral Spur Category Eye anatomy eye stub ... more details
the future of glaucoma surgery.php ref Trabectome is approved for surgical management of glaucoma ... Glaucoma Eye Occular Humor Flow File Trabectome Removes Damaged Trabecular Meshwork.jpg Glaucoma ... 10.3928 15428877 20100525 06 . Epub 2010 May 28. ref ref Vizzeri G, Weinreb RN. Cataract surgery and glaucoma .... Comparative outcomes between newer and older surgeries for glaucoma. Trans Am Ophthalmol Soc. 2009 ... treatment for open angle glaucoma. Expert Rev Ophthalmol.2009 4 2 119 128. ref ref Minckler DS ... QH. Trabectome a novel approach to angle surgery in the treatment of glaucoma. Int Ophthalmol ... approach for coexisting cataract and open angle glaucoma. J Cataract Refract Surg. 2008 Jul 34 7 1096 103. ref ref Filippopoulos T, Rhee D. Novel surgical procedures in glaucoma. Advances in penetrating glaucoma surgery. Curr Opin Ophthalmol. 2008 Mar 19 2 149 54. Review. ref ref Gunderson E. Trabeculotomy Ab Interno, using the Trabectome a promising treatment for patients with open angle glaucoma ... for open angle glaucoma. J Glaucoma. 2006 Feb 15 1 68 73. ref ref Minckler D, Baerveldt G, Ramirez ..., a novel surgical device for the treatment of open angle glaucoma. Trans Am Ophthalmol Soc ... for treatment of open angle glaucoma. Ophthalmology. 2005 Jun 112 6 962 7. ref indicate that Trabectome ... requirement to take glaucoma eye drops and glaucoma medications. References See Wikipedia Footnotes ... more details
Unreferenced date January 2009 Cyclospasm is the contraction of the ciliary muscle in the eye, in the accommodation reflex accommodation of focus for near vision. Cyclospasm may also exert tensions on the trabecular meshwork , opening the pores and facilitating outflow of the aqueous humour into the Schlemm s canal canal of Schlemm . The increase in aqueous humour outflow is desirable for patients with glaucoma . eye stub Category Ophthalmology ... more details
NVG may refer to Neovascular glaucoma Night vision goggles , a specific night vision device Northern Volunteers Group a NGO in Tamale, Ghana NVG Card , a memory card format, used for PlayStation Vita games. Disambig Long comment to avoid being listed on short pages de NVG it NVG nl NVG ... more details
Infobox Disease Name PAGENAME Image Caption DiseasesDB 1778 ICD10 ICD10 Q 15 0 q 10 ICD9 ICD9 743.2 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D006871 Hydrophthalmos is a congenital form of glaucoma . disease stub Congenital malformations and deformations of eye, ear, face and neck Category Congenital disorders of eyes ... more details
citizen and joined the university s faculty, remaining for thirteen years. Armaly s perception that glaucoma ... him the University of Iowa developed one of the premier programs fact date October 2011 in glaucoma ... that the incidence of glaucoma was increased fivefold in those with family histories of the disease, a pattern that facilitated subsequent clinical diagnosis of glaucoma, which can lead to blindness ... Award from the International Glaucoma Congress, and the Sir Stewart Duke Elder Gold Medal. fact date October 2011 From 1980 to 1987, Armaly served as President of the Pan American Glaucoma ... gst fullpage.html?res 9B00E3D71F31F93AA2575AC0A9639C8B63 Mansour Armaly, 78, Leader of Early Study of Glaucoma ... career to the study and care of patients with ocular hypertension and glaucoma. Armaly was instrumental in defining the natural history of glaucoma, in developing techniques of early detection and monitoring function loss in the eye, and in demonstrating the genetic character of glaucoma. fact date .... As director of the glaucoma service he became internationally known. fact date October 2011 Armaly ...?CRETRY 1&SRETRY 0 GENETIC FACTORS RELATED TO GLAUCOMA, Annals of the New York Academy of Sciences ... cgi content abstract 1 5 618 The Des Momes population Study of Glaucoma, Investigative Ophthalmology ... Glaucoma Researcher Mansour F. Armaly, 78, Dies, Washington Post , August 25, 2005. http www.adc.org ... more details
Unreferenced stub auto yes date December 2009 Orphan date December 2009 Inotek Pharmaceuticals is a clinical stage drug development company developing therapies with novel mechanisms to address significant diseases of the eye. The Company s lead program, INO 8875, is being evaluated for the treatment of elevated intraocular pressure associated with open angle glaucoma and ocular hypertension. INO 8875 has completed a Phase 1 2 clinical trial in glaucoma subjects. Treatment with INO 8875 was well tolerated and resulted in a statistically significant reduction in intraocular pressure. Additionally, Inotek has a portfolio of emerging programs targeting a broad range of retinal diseases, including age related macular degeneration and macular edema . It is based in Lexington, Massachusetts . Category Biotechnology companies Category Companies based in Massachusetts US company stub ... more details
The optic cup is the white, cup like area in the center of the optic disc . ref name pmid4066212 cite journal author Algazi VR, Keltner JL, Johnson CA title Computer analysis of the optic cup in glaucoma journal Invest. Ophthalmol. Vis. Sci. volume 26 issue 12 pages 1759 70 year 1985 month December pmid 4066212 doi url http www.iovs.org cgi pmidlookup?view long&pmid 4066212 ref The ratio of the size of the optic cup to the optic disc or cup to disc ratio is measured to diagnose glaucoma . Normally the cup should take up less than 50 of the disc. References reflist Eye anatomy Category Eye anatomy Eye Category Sensory organs Category Visual system eye stub ... more details
cause of glaucoma. Function MYOC encodes the protein myocilin. The precise function of myocilin ... cause myocilin to accumulate in the cells of the trabecular meshwork are a common cause of glaucoma ... juvenile onset open angle glaucoma . ref cite web title Entrez Gene MYOC myocilin, trabecular ... in MYOC are found in 4 of adult onset primary open angle glaucoma and 10 of juvenile onset primary open angle glaucoma. Overexpression or underexpression of MYOC does not cause glaucoma. However ... proteins to peroxisomes. Glaucoma associated mutations activate that signal sequence and direct ... secretion and increased accumulation appear to be the initial steps in myocilin associated glaucoma. ref Young H. Kwon, John H. Fingert, Markus H. Kuehn, Wallace L.M. Alward, Primary Open Angle Glaucoma ... title Myocilin glaucoma. journal Survey of ophthalmology volume 47 issue 6 pages 547 61 year 2003 pmid ... on the TIGR MYOC gene Myocilin and glaucoma. journal Ophthalmology clinics of North America volume ... author Coca Prados M, Escribano J title New perspectives in aqueous humor secretion and in glaucoma ... more details
Synthetic prostaglandin analogues are molecules which are manufactured to bind to a prostaglandin receptor . Wider use of prostaglandin analogues is limited by unwanted side effects and their abortion abortive potential. Uses Prostaglandin analogues such as misoprostol are used in treatment of duodenum duodenal and peptic ulcer gastric ulcers . They exert antisecretory and cytoprotective properties and are especially indicated for the elderly on continuous doses of NSAID s. Prostaglandin analogues can also be used in the management of open angle glaucoma . They reduce intra ocular pressure by enhancing uveoscleral outflow and may also have some effect on the trabecular meshwork as well. Latanoprost , travoprost , unoprostone and bimatoprost are examples of prostaglandin analogues used in the management of open angle glaucoma. In some countries such as Australia, they are now considered first line agents in open angle glaucoma rather than beta blocker s ref AMH 2008 Australian Medicines Handbook, 9th Edition Adelaide, S. Aust. Australian Medicines Handbook, c2008., ref True synthetic prostaglandin E1 is also available pharmaceutically as alprostadil . References Reflist External links MeshName Prostaglandin Analogues Drugs for peptic ulcer and GORD Antithrombotics Oxytocics Antiglaucoma preparations and miotics Prostaglandins Category Drugs acting on the gastrointestinal system and metabolism Category Pharmacology Category Prostaglandins gastrointestinal drug stub blood drug stub genito urinary drug stub pt An logo da prostaglandina th ... more details
Ocular melanosis OM , also known as ocular melanocytosis or melanosis oculi , is a congenital disease of the human eye eye which affects about 1 in every 5000 people and is a risk factor for uveal melanoma . In dog s is found almost exclusively in the Cairn Terrier , where until recently it was known as pigmentary glaucoma see also canine glaucoma . The disease is caused by an increase of melanocyte s in the Iris anatomy iris , choroid , and surrounding structures. Overproduction of pigment by these cells can block the trabecular meshwork through which fluid drains from the eye. The increased fluid in the eye leads to increased pressure, which can lead to glaucoma . In humans, this is sometimes known as pigment dispersion syndrome . ref name Gelatt 1999 cite book author Gelatt, Kirk N. ed. title Veterinary Ophthalmology edition 3rd ed. publisher Lippincott, Williams & Wilkins year 1999 isbn 0 683 30076 8 ref References references External links http www.sumac cairns.com TotoFact.html OM Fact http www.optometrists.asn.au gui files ceo841035.pdf Iris mammillations in ocular melanocytosis http www.cairnterrier.org health 2003 04 petersen jones.php Investigations of Ocular Melanosis in Cairn Terriers http www.webcitation.org query?url http www.geocities.com mrsdooker OM.html&date 2009 10 26 02 19 27 Help us find the genetic cause of Ocular Melanosis Category Dog diseases Category Diseases of the eye and adnexa eye stub veterinary med stub de Melanosis oculi ... more details
The nerve fibers forming the optic nerve exit the eye posteriorly through a hole in the sclera that is occupied by a mesh like structure called the lamina cribrosa . It is formed by a multilayered network of collagen fibers that insert into the scleral canal wall. The nerve fibers that comprise the optic nerve run through pores formed by these collagen beams. In humans, a central retinal artery is located slightly off center in nasal direction. The lamina cribrosa is thought to help maintain the pressure gradient between the inside of the eye and the surrounding tissue ref http www.springerlink.com index H28109374382X7T6.pdf Optic disc histomorphometry in normal eyes and eyes with secondary angle closure glaucoma by J.B. Jonas K.A. Koenigsreuther G.O.H Naumann in Graefe s Archive for Clinical and Experimental Ophthalmology 1992 230 134 139 ref . As a result of the Intraocular pressure it bulges slightly outwards. Being structurally weaker than the much thicker and denser sclera, the lamina cribrosa is more sensitive to changes in the intraocular pressure and tends to react to increased pressure through posterior displacement. This is thought to be one of the causes of nerve damage in glaucoma , as the displacement of the lamina cribrosa causes the pores to deform and pinch the traversing nerve fibers and blood vessels ref http www.pubmedcentral.nih.gov articlerender.fcgi?artid 1772339 Three dimensional analysis of the lamina cribrosa in glaucoma by J Morgan Davies N Taylor A R Hill P Aspinall C J O Brien A Azuara Blanco in Br J Ophthalmol. 2004 88 10 1299 1304 ref . References references Category Eye anatomy ... more details
Seidel s sign also called Seidel s scotoma or the Bjerrum scotoma is a sickle shaped scotoma that is a superior or inferior extension of the Blind spot vision blind spot . It occurs in some patients with glaucoma . ref cite journal author HARRINGTON DO title The Bjerrum Scotoma journal Trans Am Ophthalmol Soc volume 62 issue pages 324 48 year 1964 pmid 14269898 pmc 1310164 doi url ref References reflist med sign stub Category Medical signs Category Ophthalmology ... more details
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