Keratoconus asymmetry between both eyes based on corneal tomography
PURPOSE: To characterize the asymmetry between both eyes in patients with keratoconus based on corneal tomography. MATERIALS AND METHODS: All patients with keratoconus who presented to the eye clinic at Jordan University Hospital between January 2008 and November 2011 were included in the study. Usi...
Gespeichert in:
| Veröffentlicht in: | Middle East African journal of ophthalmology 2017-10, Vol.24 (4), p.171-176 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 176 |
|---|---|
| container_issue | 4 |
| container_start_page | 171 |
| container_title | Middle East African journal of ophthalmology |
| container_volume | 24 |
| creator | Bussières, Nathalie Ababneh, Osama Abu Ameerh, Mohammed Al Bdour, Muawyah |
| description | PURPOSE: To characterize the asymmetry between both eyes in patients with keratoconus based on corneal tomography.
MATERIALS AND METHODS: All patients with keratoconus who presented to the eye clinic at Jordan University Hospital between January 2008 and November 2011 were included in the study. Using computerized corneal tomography, the keratometric values and indices of both eyes of participants with keratoconus and normal controls were compared. For both eyes to be considered symmetrical, the difference between the mean curvature power (Km), flat curvature power (K1), or steep curvature power (K2) in both eyes was equal to or |
| doi_str_mv | 10.4103/meajo.MEAJO_311_16 |
| format | Article |
| fullrecord | <record><control><sourceid>gale_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_5793447</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A523707260</galeid><sourcerecordid>A523707260</sourcerecordid><originalsourceid>FETCH-LOGICAL-c589o-6f92cb13dce3e526e1afdbfbd8df220c598450fba1105638d0de9be300bbd44d3</originalsourceid><addsrcrecordid>eNp9ks9v0zAcxSMEYtPYP8ABRUJCXFL8M4kvSFU3NmBoFzhbdvxNky6xi-1Q9b_HXbfRIoR9sGV_3rP89LLsNUYzhhH9MIJaudm3y_mXW0kxlrh8lp0iUfECcyGe3-9ZIQilJ9l5CCu0GxWqeP0yOyGCEVJxdJotvoJX0TXOTiFXYTuOEP021xA3ADbXLnY5bCHkWgUwubN547wFNeTRjW7p1brbvspetGoIcP6wnmU_Pl1-X1wXN7dXnxfzm6LhtXBF2QrSaExNAxQ4KQGr1uhWm9q0hKCGi5px1GqFMeIlrQ0yIDRQhLQ2jBl6ln3c-64nPUKysdGrQa59Pyq_lU718vjG9p1cul-SV4IyViWD9w8G3v2cIEQ59qGBYVAW3BQkQQijsiqZSOjbv9CVm7xN35NY1HWNEWb1H2qpBpC9bV16t9mZyjknNMVNSpSo2T-oNA2MfUoe2j6dHwneHQi6lHbsghum2DsbjkGyBxvvQvDQPoWBkdzVRN7XRB7WJIneHMb4JHksRQIu9sDGDRF8uBumDfhkZe6s2_zHWuIKy8dC0d_Qg9Fb</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1988810148</pqid></control><display><type>article</type><title>Keratoconus asymmetry between both eyes based on corneal tomography</title><source>Medknow Open Access Medical Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>PubMed Central Open Access</source><source>PubMed Central</source><creator>Bussières, Nathalie ; Ababneh, Osama ; Abu Ameerh, Mohammed ; Al Bdour, Muawyah</creator><creatorcontrib>Bussières, Nathalie ; Ababneh, Osama ; Abu Ameerh, Mohammed ; Al Bdour, Muawyah</creatorcontrib><description>PURPOSE: To characterize the asymmetry between both eyes in patients with keratoconus based on corneal tomography.
MATERIALS AND METHODS: All patients with keratoconus who presented to the eye clinic at Jordan University Hospital between January 2008 and November 2011 were included in the study. Using computerized corneal tomography, the keratometric values and indices of both eyes of participants with keratoconus and normal controls were compared. For both eyes to be considered symmetrical, the difference between the mean curvature power (Km), flat curvature power (K1), or steep curvature power (K2) in both eyes was equal to or <2.5 diopters, and the difference between the thinnest corneal points was equal to or <25.0 μm between both eyes.
RESULTS: Ninety-eight patients with keratoconus and 49 normal participants were evaluated. The mean age of the participants was 26.3 ± 6.6 years. The results showed two populations of patients with keratoconus: one with asymmetrical corneas who were more affected by the disease and another with symmetrical corneas. As the disease severity increased, the differences between the two eyes increased for patients with the asymmetrical form, while both corneas of patients with the symmetrical form were similar.
CONCLUSIONS: Corneal tomography identified two forms of keratoconus: symmetrical and asymmetrical. The latter tended to be more severe and occurred in a younger age group. Questions remain about whether the two keratoconic forms are specific to the Middle Eastern population and whether there are ethnic or demographic forms of the disease.</description><identifier>ISSN: 0974-9233</identifier><identifier>ISSN: 0975-1599</identifier><identifier>EISSN: 0975-1599</identifier><identifier>EISSN: 0974-9233</identifier><identifier>DOI: 10.4103/meajo.MEAJO_311_16</identifier><identifier>PMID: 29422750</identifier><language>eng</language><publisher>India: Wolters Kluwer India Pvt. Ltd</publisher><subject>Age ; Analysis ; Asymmetry ; Cataracts ; Disease ; Eye ; Eye contact ; Health aspects ; Hospitals ; Keratoconus ; Medical imaging ; Ophthalmology ; Original ; Patients ; Physiological aspects ; Tomography ; Topography</subject><ispartof>Middle East African journal of ophthalmology, 2017-10, Vol.24 (4), p.171-176</ispartof><rights>COPYRIGHT 2017 Medknow Publications and Media Pvt. Ltd.</rights><rights>Copyright Medknow Publications & Media Pvt. Ltd. Oct/Dec 2017</rights><rights>Copyright: © 2018 Middle East African Journal of Ophthalmology 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c589o-6f92cb13dce3e526e1afdbfbd8df220c598450fba1105638d0de9be300bbd44d3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793447/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793447/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,27458,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29422750$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Bussières, Nathalie</creatorcontrib><creatorcontrib>Ababneh, Osama</creatorcontrib><creatorcontrib>Abu Ameerh, Mohammed</creatorcontrib><creatorcontrib>Al Bdour, Muawyah</creatorcontrib><title>Keratoconus asymmetry between both eyes based on corneal tomography</title><title>Middle East African journal of ophthalmology</title><addtitle>Middle East Afr J Ophthalmol</addtitle><description>PURPOSE: To characterize the asymmetry between both eyes in patients with keratoconus based on corneal tomography.
MATERIALS AND METHODS: All patients with keratoconus who presented to the eye clinic at Jordan University Hospital between January 2008 and November 2011 were included in the study. Using computerized corneal tomography, the keratometric values and indices of both eyes of participants with keratoconus and normal controls were compared. For both eyes to be considered symmetrical, the difference between the mean curvature power (Km), flat curvature power (K1), or steep curvature power (K2) in both eyes was equal to or <2.5 diopters, and the difference between the thinnest corneal points was equal to or <25.0 μm between both eyes.
RESULTS: Ninety-eight patients with keratoconus and 49 normal participants were evaluated. The mean age of the participants was 26.3 ± 6.6 years. The results showed two populations of patients with keratoconus: one with asymmetrical corneas who were more affected by the disease and another with symmetrical corneas. As the disease severity increased, the differences between the two eyes increased for patients with the asymmetrical form, while both corneas of patients with the symmetrical form were similar.
CONCLUSIONS: Corneal tomography identified two forms of keratoconus: symmetrical and asymmetrical. The latter tended to be more severe and occurred in a younger age group. Questions remain about whether the two keratoconic forms are specific to the Middle Eastern population and whether there are ethnic or demographic forms of the disease.</description><subject>Age</subject><subject>Analysis</subject><subject>Asymmetry</subject><subject>Cataracts</subject><subject>Disease</subject><subject>Eye</subject><subject>Eye contact</subject><subject>Health aspects</subject><subject>Hospitals</subject><subject>Keratoconus</subject><subject>Medical imaging</subject><subject>Ophthalmology</subject><subject>Original</subject><subject>Patients</subject><subject>Physiological aspects</subject><subject>Tomography</subject><subject>Topography</subject><issn>0974-9233</issn><issn>0975-1599</issn><issn>0975-1599</issn><issn>0974-9233</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp9ks9v0zAcxSMEYtPYP8ABRUJCXFL8M4kvSFU3NmBoFzhbdvxNky6xi-1Q9b_HXbfRIoR9sGV_3rP89LLsNUYzhhH9MIJaudm3y_mXW0kxlrh8lp0iUfECcyGe3-9ZIQilJ9l5CCu0GxWqeP0yOyGCEVJxdJotvoJX0TXOTiFXYTuOEP021xA3ADbXLnY5bCHkWgUwubN547wFNeTRjW7p1brbvspetGoIcP6wnmU_Pl1-X1wXN7dXnxfzm6LhtXBF2QrSaExNAxQ4KQGr1uhWm9q0hKCGi5px1GqFMeIlrQ0yIDRQhLQ2jBl6ln3c-64nPUKysdGrQa59Pyq_lU718vjG9p1cul-SV4IyViWD9w8G3v2cIEQ59qGBYVAW3BQkQQijsiqZSOjbv9CVm7xN35NY1HWNEWb1H2qpBpC9bV16t9mZyjknNMVNSpSo2T-oNA2MfUoe2j6dHwneHQi6lHbsghum2DsbjkGyBxvvQvDQPoWBkdzVRN7XRB7WJIneHMb4JHksRQIu9sDGDRF8uBumDfhkZe6s2_zHWuIKy8dC0d_Qg9Fb</recordid><startdate>20171001</startdate><enddate>20171001</enddate><creator>Bussières, Nathalie</creator><creator>Ababneh, Osama</creator><creator>Abu Ameerh, Mohammed</creator><creator>Al Bdour, Muawyah</creator><general>Wolters Kluwer India Pvt. Ltd</general><general>Medknow Publications and Media Pvt. Ltd</general><general>Medknow Publications & Media Pvt. Ltd</general><general>Medknow Publications & Media Pvt Ltd</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>K9.</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>MBDVC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20171001</creationdate><title>Keratoconus asymmetry between both eyes based on corneal tomography</title><author>Bussières, Nathalie ; Ababneh, Osama ; Abu Ameerh, Mohammed ; Al Bdour, Muawyah</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c589o-6f92cb13dce3e526e1afdbfbd8df220c598450fba1105638d0de9be300bbd44d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Age</topic><topic>Analysis</topic><topic>Asymmetry</topic><topic>Cataracts</topic><topic>Disease</topic><topic>Eye</topic><topic>Eye contact</topic><topic>Health aspects</topic><topic>Hospitals</topic><topic>Keratoconus</topic><topic>Medical imaging</topic><topic>Ophthalmology</topic><topic>Original</topic><topic>Patients</topic><topic>Physiological aspects</topic><topic>Tomography</topic><topic>Topography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bussières, Nathalie</creatorcontrib><creatorcontrib>Ababneh, Osama</creatorcontrib><creatorcontrib>Abu Ameerh, Mohammed</creatorcontrib><creatorcontrib>Al Bdour, Muawyah</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Research Library</collection><collection>Research Library (Corporate)</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Middle East African journal of ophthalmology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bussières, Nathalie</au><au>Ababneh, Osama</au><au>Abu Ameerh, Mohammed</au><au>Al Bdour, Muawyah</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Keratoconus asymmetry between both eyes based on corneal tomography</atitle><jtitle>Middle East African journal of ophthalmology</jtitle><addtitle>Middle East Afr J Ophthalmol</addtitle><date>2017-10-01</date><risdate>2017</risdate><volume>24</volume><issue>4</issue><spage>171</spage><epage>176</epage><pages>171-176</pages><issn>0974-9233</issn><issn>0975-1599</issn><eissn>0975-1599</eissn><eissn>0974-9233</eissn><abstract>PURPOSE: To characterize the asymmetry between both eyes in patients with keratoconus based on corneal tomography.
MATERIALS AND METHODS: All patients with keratoconus who presented to the eye clinic at Jordan University Hospital between January 2008 and November 2011 were included in the study. Using computerized corneal tomography, the keratometric values and indices of both eyes of participants with keratoconus and normal controls were compared. For both eyes to be considered symmetrical, the difference between the mean curvature power (Km), flat curvature power (K1), or steep curvature power (K2) in both eyes was equal to or <2.5 diopters, and the difference between the thinnest corneal points was equal to or <25.0 μm between both eyes.
RESULTS: Ninety-eight patients with keratoconus and 49 normal participants were evaluated. The mean age of the participants was 26.3 ± 6.6 years. The results showed two populations of patients with keratoconus: one with asymmetrical corneas who were more affected by the disease and another with symmetrical corneas. As the disease severity increased, the differences between the two eyes increased for patients with the asymmetrical form, while both corneas of patients with the symmetrical form were similar.
CONCLUSIONS: Corneal tomography identified two forms of keratoconus: symmetrical and asymmetrical. The latter tended to be more severe and occurred in a younger age group. Questions remain about whether the two keratoconic forms are specific to the Middle Eastern population and whether there are ethnic or demographic forms of the disease.</abstract><cop>India</cop><pub>Wolters Kluwer India Pvt. Ltd</pub><pmid>29422750</pmid><doi>10.4103/meajo.MEAJO_311_16</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0974-9233 |
| ispartof | Middle East African journal of ophthalmology, 2017-10, Vol.24 (4), p.171-176 |
| issn | 0974-9233 0975-1599 0975-1599 0974-9233 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_5793447 |
| source | Medknow Open Access Medical Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central Open Access; PubMed Central |
| subjects | Age Analysis Asymmetry Cataracts Disease Eye Eye contact Health aspects Hospitals Keratoconus Medical imaging Ophthalmology Original Patients Physiological aspects Tomography Topography |
| title | Keratoconus asymmetry between both eyes based on corneal tomography |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T07%3A39%3A25IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Keratoconus%20asymmetry%20between%20both%20eyes%20based%20on%20corneal%20tomography&rft.jtitle=Middle%20East%20African%20journal%20of%20ophthalmology&rft.au=Bussi%C3%A8res,%20Nathalie&rft.date=2017-10-01&rft.volume=24&rft.issue=4&rft.spage=171&rft.epage=176&rft.pages=171-176&rft.issn=0974-9233&rft.eissn=0975-1599&rft_id=info:doi/10.4103/meajo.MEAJO_311_16&rft_dat=%3Cgale_pubme%3EA523707260%3C/gale_pubme%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1988810148&rft_id=info:pmid/29422750&rft_galeid=A523707260&rfr_iscdi=true |