Optic disk ovality as an index of tilt and its relationship to myopia and perimetry
To examine the association of optic disk ovality with myopic refractive error, axial length, and the visual field. Prospective observational case series. The study included 150 randomly recruited male subjects with myopia. In all cases, one eye was randomly selected, and subjective refraction, slit-...
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| Veröffentlicht in: | American journal of ophthalmology 2005-02, Vol.139 (2), p.247-252 |
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| container_title | American journal of ophthalmology |
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| creator | Tay, Eugene Seah, Steve K. Chan, Siew-Pang Lim, Albert T.H. Chew, Sek-Jin Foster, Paul J. Aung, Tin |
| description | To examine the association of optic disk ovality with myopic refractive error, axial length, and the visual field.
Prospective observational case series.
The study included 150 randomly recruited male subjects with myopia. In all cases, one eye was randomly selected, and subjective refraction, slit-lamp examination, applanation tonometry, gonioscopy, A-scan ultrasonography, funduscopy, and color optic disk stereo photography were performed. Disk ovality was assessed using the ratio of minimum to maximum disk diameter (index of tilt). A ratio of ≤ 0.8 was considered as significant disk tilt. Visual fields were tested using static automated threshold perimetry with two methods of optical correction: trial lenses and contact lenses.
Of the total sample, 137 subjects completed the study. Mean age was 21.2 ± 1.1 year, and mean spherical equivalent was -6.36 ± 3.56 diopters. Mean ovality ratio was 0.83 ± 0.09; 55 subjects (40.2%) had significant tilted optic disks. Greater optic disk ovality (tilt) correlated with greater myopia (
P = .009) and longer axial length (
P = .009); 95.6% of subjects had normal visual fields with both methods of optical correction. Using multiple linear regression analysis, greater tilt was independently related to a higher mean defect on testing with trial lenses (
P < .01).
Increased optic disk tilt was associated with higher myopia and reduced sensitivity on field testing. These factors are important in the assessment of glaucoma in patients with myopia. |
| doi_str_mv | 10.1016/j.ajo.2004.08.076 |
| format | Article |
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Prospective observational case series.
The study included 150 randomly recruited male subjects with myopia. In all cases, one eye was randomly selected, and subjective refraction, slit-lamp examination, applanation tonometry, gonioscopy, A-scan ultrasonography, funduscopy, and color optic disk stereo photography were performed. Disk ovality was assessed using the ratio of minimum to maximum disk diameter (index of tilt). A ratio of ≤ 0.8 was considered as significant disk tilt. Visual fields were tested using static automated threshold perimetry with two methods of optical correction: trial lenses and contact lenses.
Of the total sample, 137 subjects completed the study. Mean age was 21.2 ± 1.1 year, and mean spherical equivalent was -6.36 ± 3.56 diopters. Mean ovality ratio was 0.83 ± 0.09; 55 subjects (40.2%) had significant tilted optic disks. Greater optic disk ovality (tilt) correlated with greater myopia (
P = .009) and longer axial length (
P = .009); 95.6% of subjects had normal visual fields with both methods of optical correction. Using multiple linear regression analysis, greater tilt was independently related to a higher mean defect on testing with trial lenses (
P < .01).
Increased optic disk tilt was associated with higher myopia and reduced sensitivity on field testing. These factors are important in the assessment of glaucoma in patients with myopia.</description><identifier>ISSN: 0002-9394</identifier><identifier>EISSN: 1879-1891</identifier><identifier>DOI: 10.1016/j.ajo.2004.08.076</identifier><identifier>PMID: 15733984</identifier><identifier>CODEN: AJOPAA</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Adult ; Automation ; Biological and medical sciences ; Confidence intervals ; Contact lenses ; Defects ; Eye Abnormalities - complications ; Field study ; Glaucoma ; Gonioscopy ; Humans ; Male ; Medical sciences ; Myopia ; Myopia - etiology ; Ophthalmology ; Optic Disk - abnormalities ; Optics ; Prospective Studies ; Ratios ; Tonometry, Ocular ; Vision disorders ; Vision Disorders - etiology ; Visual Field Tests ; Visual Fields</subject><ispartof>American journal of ophthalmology, 2005-02, Vol.139 (2), p.247-252</ispartof><rights>2005 Elsevier Inc.</rights><rights>2005 INIST-CNRS</rights><rights>Copyright Elsevier Limited Feb 2005</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c475t-c334f49205c748b3c3568854c306c265f13af3699635c55452a438e5447296623</citedby><cites>FETCH-LOGICAL-c475t-c334f49205c748b3c3568854c306c265f13af3699635c55452a438e5447296623</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ajo.2004.08.076$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16594773$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15733984$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tay, Eugene</creatorcontrib><creatorcontrib>Seah, Steve K.</creatorcontrib><creatorcontrib>Chan, Siew-Pang</creatorcontrib><creatorcontrib>Lim, Albert T.H.</creatorcontrib><creatorcontrib>Chew, Sek-Jin</creatorcontrib><creatorcontrib>Foster, Paul J.</creatorcontrib><creatorcontrib>Aung, Tin</creatorcontrib><title>Optic disk ovality as an index of tilt and its relationship to myopia and perimetry</title><title>American journal of ophthalmology</title><addtitle>Am J Ophthalmol</addtitle><description>To examine the association of optic disk ovality with myopic refractive error, axial length, and the visual field.
Prospective observational case series.
The study included 150 randomly recruited male subjects with myopia. In all cases, one eye was randomly selected, and subjective refraction, slit-lamp examination, applanation tonometry, gonioscopy, A-scan ultrasonography, funduscopy, and color optic disk stereo photography were performed. Disk ovality was assessed using the ratio of minimum to maximum disk diameter (index of tilt). A ratio of ≤ 0.8 was considered as significant disk tilt. Visual fields were tested using static automated threshold perimetry with two methods of optical correction: trial lenses and contact lenses.
Of the total sample, 137 subjects completed the study. Mean age was 21.2 ± 1.1 year, and mean spherical equivalent was -6.36 ± 3.56 diopters. Mean ovality ratio was 0.83 ± 0.09; 55 subjects (40.2%) had significant tilted optic disks. Greater optic disk ovality (tilt) correlated with greater myopia (
P = .009) and longer axial length (
P = .009); 95.6% of subjects had normal visual fields with both methods of optical correction. Using multiple linear regression analysis, greater tilt was independently related to a higher mean defect on testing with trial lenses (
P < .01).
Increased optic disk tilt was associated with higher myopia and reduced sensitivity on field testing. These factors are important in the assessment of glaucoma in patients with myopia.</description><subject>Adult</subject><subject>Automation</subject><subject>Biological and medical sciences</subject><subject>Confidence intervals</subject><subject>Contact lenses</subject><subject>Defects</subject><subject>Eye Abnormalities - complications</subject><subject>Field study</subject><subject>Glaucoma</subject><subject>Gonioscopy</subject><subject>Humans</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Myopia</subject><subject>Myopia - etiology</subject><subject>Ophthalmology</subject><subject>Optic Disk - abnormalities</subject><subject>Optics</subject><subject>Prospective Studies</subject><subject>Ratios</subject><subject>Tonometry, Ocular</subject><subject>Vision disorders</subject><subject>Vision Disorders - etiology</subject><subject>Visual Field Tests</subject><subject>Visual Fields</subject><issn>0002-9394</issn><issn>1879-1891</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE1r3DAQQEVpaLbb_oBegqC0N7uSNfoipxCSJhDIIe1ZKLJM5XgtR9KG7r-P0l0I9JDTMDNvhpmH0BdKWkqo-DG2doxtRwi0RLVEindoRZXUDVWavkcrQkjXaKbhGH3MeaypkCA_oGPKJWNawQrd3S4lONyH_IDjk51C2WGbsZ1xmHv_F8cBlzCVWuhxKBknP9kS4pz_hAWXiDe7uAT7r734FDa-pN0ndDTYKfvPh7hGvy8vfp1fNTe3P6_Pz24aB5KXxjEGA-iOcCdB3TPHuFCKg2NEuE7wgTI7MKG1YNxxDryzwJTnALLTQnRsjb7v9y4pPm59LmYTsvPTZGcft9nUZwVoUBX8-h84xm2a622GCgClFCW8UnRPuRRzTn4wS33Ipp2hxLz4NqOpvs2Lb0OUqb7rzMlh8_Z-4_vXiYPgCnw7ADY7Ow3Jzi7kV05wDbKya3S653wV9hR8MtkFPzvfh-RdMX0Mb5zxDAWDmpA</recordid><startdate>20050201</startdate><enddate>20050201</enddate><creator>Tay, Eugene</creator><creator>Seah, Steve K.</creator><creator>Chan, Siew-Pang</creator><creator>Lim, Albert T.H.</creator><creator>Chew, Sek-Jin</creator><creator>Foster, Paul J.</creator><creator>Aung, Tin</creator><general>Elsevier Inc</general><general>Elsevier</general><general>Elsevier Limited</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope><scope>NAPCQ</scope><scope>7X8</scope></search><sort><creationdate>20050201</creationdate><title>Optic disk ovality as an index of tilt and its relationship to myopia and perimetry</title><author>Tay, Eugene ; Seah, Steve K. ; Chan, Siew-Pang ; Lim, Albert T.H. ; Chew, Sek-Jin ; Foster, Paul J. ; Aung, Tin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c475t-c334f49205c748b3c3568854c306c265f13af3699635c55452a438e5447296623</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Adult</topic><topic>Automation</topic><topic>Biological and medical sciences</topic><topic>Confidence intervals</topic><topic>Contact lenses</topic><topic>Defects</topic><topic>Eye Abnormalities - complications</topic><topic>Field study</topic><topic>Glaucoma</topic><topic>Gonioscopy</topic><topic>Humans</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Myopia</topic><topic>Myopia - etiology</topic><topic>Ophthalmology</topic><topic>Optic Disk - abnormalities</topic><topic>Optics</topic><topic>Prospective Studies</topic><topic>Ratios</topic><topic>Tonometry, Ocular</topic><topic>Vision disorders</topic><topic>Vision Disorders - etiology</topic><topic>Visual Field Tests</topic><topic>Visual Fields</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tay, Eugene</creatorcontrib><creatorcontrib>Seah, Steve K.</creatorcontrib><creatorcontrib>Chan, Siew-Pang</creatorcontrib><creatorcontrib>Lim, Albert T.H.</creatorcontrib><creatorcontrib>Chew, Sek-Jin</creatorcontrib><creatorcontrib>Foster, Paul J.</creatorcontrib><creatorcontrib>Aung, Tin</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Premium</collection><collection>MEDLINE - Academic</collection><jtitle>American journal of ophthalmology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tay, Eugene</au><au>Seah, Steve K.</au><au>Chan, Siew-Pang</au><au>Lim, Albert T.H.</au><au>Chew, Sek-Jin</au><au>Foster, Paul J.</au><au>Aung, Tin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optic disk ovality as an index of tilt and its relationship to myopia and perimetry</atitle><jtitle>American journal of ophthalmology</jtitle><addtitle>Am J Ophthalmol</addtitle><date>2005-02-01</date><risdate>2005</risdate><volume>139</volume><issue>2</issue><spage>247</spage><epage>252</epage><pages>247-252</pages><issn>0002-9394</issn><eissn>1879-1891</eissn><coden>AJOPAA</coden><abstract>To examine the association of optic disk ovality with myopic refractive error, axial length, and the visual field.
Prospective observational case series.
The study included 150 randomly recruited male subjects with myopia. In all cases, one eye was randomly selected, and subjective refraction, slit-lamp examination, applanation tonometry, gonioscopy, A-scan ultrasonography, funduscopy, and color optic disk stereo photography were performed. Disk ovality was assessed using the ratio of minimum to maximum disk diameter (index of tilt). A ratio of ≤ 0.8 was considered as significant disk tilt. Visual fields were tested using static automated threshold perimetry with two methods of optical correction: trial lenses and contact lenses.
Of the total sample, 137 subjects completed the study. Mean age was 21.2 ± 1.1 year, and mean spherical equivalent was -6.36 ± 3.56 diopters. Mean ovality ratio was 0.83 ± 0.09; 55 subjects (40.2%) had significant tilted optic disks. Greater optic disk ovality (tilt) correlated with greater myopia (
P = .009) and longer axial length (
P = .009); 95.6% of subjects had normal visual fields with both methods of optical correction. Using multiple linear regression analysis, greater tilt was independently related to a higher mean defect on testing with trial lenses (
P < .01).
Increased optic disk tilt was associated with higher myopia and reduced sensitivity on field testing. These factors are important in the assessment of glaucoma in patients with myopia.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>15733984</pmid><doi>10.1016/j.ajo.2004.08.076</doi><tpages>6</tpages></addata></record> |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Adult Automation Biological and medical sciences Confidence intervals Contact lenses Defects Eye Abnormalities - complications Field study Glaucoma Gonioscopy Humans Male Medical sciences Myopia Myopia - etiology Ophthalmology Optic Disk - abnormalities Optics Prospective Studies Ratios Tonometry, Ocular Vision disorders Vision Disorders - etiology Visual Field Tests Visual Fields |
| title | Optic disk ovality as an index of tilt and its relationship to myopia and perimetry |
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