Changes in Japanese eyes after laser peripheral iridotomy: an anterior segment optical coherence tomography study
Background The aim was to investigate the changes in anterior segment parameters, as assessed by anterior segment optical coherence tomography in Japanese subjects after laser peripheral iridotomy (LPI). Design This was a prospective observational study. Participants The participants include 72 subj...
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| Veröffentlicht in: | Clinical & experimental ophthalmology 2016-04, Vol.44 (3), p.159-165 |
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| creator | Ang, Bryan CH Nongpiur, Monisha E Aung, Tin Mizoguchi, Takanori Ozaki, Mineo |
| description | Background
The aim was to investigate the changes in anterior segment parameters, as assessed by anterior segment optical coherence tomography in Japanese subjects after laser peripheral iridotomy (LPI).
Design
This was a prospective observational study.
Participants
The participants include 72 subjects with angle closure including primary angle closure suspect (PACS), primary angle closure (PAC), and primary angle closure glaucoma (PACG).
Methods
Anterior segment optical coherence tomography parameters was measured by customized software. Complete data of 51 subjects were available for final analysis.
Main Outcome Measures
These were the following parameters: angle opening distance, trabecular‐iris space area, anterior chamber depth, width, area and volume (iris thickness, curvature, and area, and lens vault (LV).
Results
A total of 25 PACS, 17 PAC and 9 PACG were included. Mean age was 74.7 ± 6.7 years, and majority were women (80.4%). Following LPI, there was a significant increase in mean gonioscopic angle width (1.16 vs. 1.93, P |
| doi_str_mv | 10.1111/ceo.12673 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1783920070</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1783920070</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4263-6476a4aa83630dd4c43706d5e3ac30dd375d61888f78f851017ff7916fc141e03</originalsourceid><addsrcrecordid>eNp1kU1P3DAQhq2qqHz10D-ALPVSDgv-iu30Vq34KEKARCt6s1xnsmtI4mAngvx7vN2FQyWskW2Nn3k14xehL5Qc0byOHYQjyqTiH9AOFYLNSqLox81dCiK20W5K94SQgnH5CW0zKXQhpd5Bj_Ol7RaQsO_whe1tBwkwTDlh6wEibmzKew_R90uItsE--ioMoZ2-Y9vlyJAPESdYtNANOPSDdxlzIePQOcCZDYto--WE0zBW0z7aqm2T4PPm3EO_T09-zc9nl9dnP-c_LmdOMMlz20paYa3mkpOqEk5wRWRVALduleCqqCTVWtdK17qghKq6ViWVtaOCAuF76Ntat4_hcYQ0mNYnB02TZwxjMlRpXjJC1Ar9-h96H8bY5e5WFGMFJ0xl6nBNuRhSilCbPvrWxslQYlY-mOyD-edDZg82iuPfFqo38vXjM3C8Bp58A9P7SmZ-cv0qOVtX-DTA81uFjQ8mP6vC3F2dmT-0vDm9Le_MDX8BqPmg6Q</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1782253027</pqid></control><display><type>article</type><title>Changes in Japanese eyes after laser peripheral iridotomy: an anterior segment optical coherence tomography study</title><source>MEDLINE</source><source>Wiley Online Library Journals Frontfile Complete</source><creator>Ang, Bryan CH ; Nongpiur, Monisha E ; Aung, Tin ; Mizoguchi, Takanori ; Ozaki, Mineo</creator><creatorcontrib>Ang, Bryan CH ; Nongpiur, Monisha E ; Aung, Tin ; Mizoguchi, Takanori ; Ozaki, Mineo</creatorcontrib><description>Background
The aim was to investigate the changes in anterior segment parameters, as assessed by anterior segment optical coherence tomography in Japanese subjects after laser peripheral iridotomy (LPI).
Design
This was a prospective observational study.
Participants
The participants include 72 subjects with angle closure including primary angle closure suspect (PACS), primary angle closure (PAC), and primary angle closure glaucoma (PACG).
Methods
Anterior segment optical coherence tomography parameters was measured by customized software. Complete data of 51 subjects were available for final analysis.
Main Outcome Measures
These were the following parameters: angle opening distance, trabecular‐iris space area, anterior chamber depth, width, area and volume (iris thickness, curvature, and area, and lens vault (LV).
Results
A total of 25 PACS, 17 PAC and 9 PACG were included. Mean age was 74.7 ± 6.7 years, and majority were women (80.4%). Following LPI, there was a significant increase in mean gonioscopic angle width (1.16 vs. 1.93, P < 0.001) and a corresponding increase in angle opening distance, trabecular‐iris space area, and angle recess area (all P < 0.001). The anterior chamber area (P < 0.001), anterior chamber volume (P < 0.001) and anterior chamber depth (P = 0.003) increased significantly; and iris curvature (P < 0.001) was significantly reduced. There were no significant changes in anterior chamber width, LV, iris thickness and area. Age‐adjusted and gender‐adjusted analysis for predictors of percentage change in angle opening distance 750 showed significant association with greater baseline LV (β = 0.32, P = 0.03). No significant differences were noted in the mean percentage change in parameters between the PACS and PAC‐PACG.
Conclusions
An increase in anterior chamber dimensions, angle widening and iris flattening; with a constant LV, iris thickness and iris area after LPI was demonstrated in Japanese eyes with angle closure.</description><identifier>ISSN: 1442-6404</identifier><identifier>EISSN: 1442-9071</identifier><identifier>DOI: 10.1111/ceo.12673</identifier><identifier>PMID: 26485668</identifier><language>eng</language><publisher>Australia: Blackwell Publishing Ltd</publisher><subject>Aged ; Aged, 80 and over ; angle opening distance ; anterior chamber depth ; Anterior Eye Segment - pathology ; anterior segment optical coherence tomography ; Argon Plasma Coagulation ; Asian Continental Ancestry Group - ethnology ; Female ; Glaucoma, Angle-Closure - ethnology ; Glaucoma, Angle-Closure - pathology ; Glaucoma, Angle-Closure - surgery ; Gonioscopy ; Humans ; Intraocular Pressure ; Iridectomy ; Iris - surgery ; Japan - epidemiology ; Laser Coagulation ; laser peripheral iridotomy ; Male ; primary angle closure ; Prospective Studies ; Tomography, Optical Coherence ; Tonometry, Ocular</subject><ispartof>Clinical & experimental ophthalmology, 2016-04, Vol.44 (3), p.159-165</ispartof><rights>2015 Royal Australian and New Zealand College of Ophthalmologists</rights><rights>2015 Royal Australian and New Zealand College of Ophthalmologists.</rights><rights>2016 Royal Australian and New Zealand College of Ophthalmologists</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4263-6476a4aa83630dd4c43706d5e3ac30dd375d61888f78f851017ff7916fc141e03</citedby><cites>FETCH-LOGICAL-c4263-6476a4aa83630dd4c43706d5e3ac30dd375d61888f78f851017ff7916fc141e03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fceo.12673$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fceo.12673$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1416,27915,27916,45565,45566</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26485668$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ang, Bryan CH</creatorcontrib><creatorcontrib>Nongpiur, Monisha E</creatorcontrib><creatorcontrib>Aung, Tin</creatorcontrib><creatorcontrib>Mizoguchi, Takanori</creatorcontrib><creatorcontrib>Ozaki, Mineo</creatorcontrib><title>Changes in Japanese eyes after laser peripheral iridotomy: an anterior segment optical coherence tomography study</title><title>Clinical & experimental ophthalmology</title><addtitle>Clinical & Experimental Ophthalmology</addtitle><description>Background
The aim was to investigate the changes in anterior segment parameters, as assessed by anterior segment optical coherence tomography in Japanese subjects after laser peripheral iridotomy (LPI).
Design
This was a prospective observational study.
Participants
The participants include 72 subjects with angle closure including primary angle closure suspect (PACS), primary angle closure (PAC), and primary angle closure glaucoma (PACG).
Methods
Anterior segment optical coherence tomography parameters was measured by customized software. Complete data of 51 subjects were available for final analysis.
Main Outcome Measures
These were the following parameters: angle opening distance, trabecular‐iris space area, anterior chamber depth, width, area and volume (iris thickness, curvature, and area, and lens vault (LV).
Results
A total of 25 PACS, 17 PAC and 9 PACG were included. Mean age was 74.7 ± 6.7 years, and majority were women (80.4%). Following LPI, there was a significant increase in mean gonioscopic angle width (1.16 vs. 1.93, P < 0.001) and a corresponding increase in angle opening distance, trabecular‐iris space area, and angle recess area (all P < 0.001). The anterior chamber area (P < 0.001), anterior chamber volume (P < 0.001) and anterior chamber depth (P = 0.003) increased significantly; and iris curvature (P < 0.001) was significantly reduced. There were no significant changes in anterior chamber width, LV, iris thickness and area. Age‐adjusted and gender‐adjusted analysis for predictors of percentage change in angle opening distance 750 showed significant association with greater baseline LV (β = 0.32, P = 0.03). No significant differences were noted in the mean percentage change in parameters between the PACS and PAC‐PACG.
Conclusions
An increase in anterior chamber dimensions, angle widening and iris flattening; with a constant LV, iris thickness and iris area after LPI was demonstrated in Japanese eyes with angle closure.</description><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>angle opening distance</subject><subject>anterior chamber depth</subject><subject>Anterior Eye Segment - pathology</subject><subject>anterior segment optical coherence tomography</subject><subject>Argon Plasma Coagulation</subject><subject>Asian Continental Ancestry Group - ethnology</subject><subject>Female</subject><subject>Glaucoma, Angle-Closure - ethnology</subject><subject>Glaucoma, Angle-Closure - pathology</subject><subject>Glaucoma, Angle-Closure - surgery</subject><subject>Gonioscopy</subject><subject>Humans</subject><subject>Intraocular Pressure</subject><subject>Iridectomy</subject><subject>Iris - surgery</subject><subject>Japan - epidemiology</subject><subject>Laser Coagulation</subject><subject>laser peripheral iridotomy</subject><subject>Male</subject><subject>primary angle closure</subject><subject>Prospective Studies</subject><subject>Tomography, Optical Coherence</subject><subject>Tonometry, Ocular</subject><issn>1442-6404</issn><issn>1442-9071</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kU1P3DAQhq2qqHz10D-ALPVSDgv-iu30Vq34KEKARCt6s1xnsmtI4mAngvx7vN2FQyWskW2Nn3k14xehL5Qc0byOHYQjyqTiH9AOFYLNSqLox81dCiK20W5K94SQgnH5CW0zKXQhpd5Bj_Ol7RaQsO_whe1tBwkwTDlh6wEibmzKew_R90uItsE--ioMoZ2-Y9vlyJAPESdYtNANOPSDdxlzIePQOcCZDYto--WE0zBW0z7aqm2T4PPm3EO_T09-zc9nl9dnP-c_LmdOMMlz20paYa3mkpOqEk5wRWRVALduleCqqCTVWtdK17qghKq6ViWVtaOCAuF76Ntat4_hcYQ0mNYnB02TZwxjMlRpXjJC1Ar9-h96H8bY5e5WFGMFJ0xl6nBNuRhSilCbPvrWxslQYlY-mOyD-edDZg82iuPfFqo38vXjM3C8Bp58A9P7SmZ-cv0qOVtX-DTA81uFjQ8mP6vC3F2dmT-0vDm9Le_MDX8BqPmg6Q</recordid><startdate>201604</startdate><enddate>201604</enddate><creator>Ang, Bryan CH</creator><creator>Nongpiur, Monisha E</creator><creator>Aung, Tin</creator><creator>Mizoguchi, Takanori</creator><creator>Ozaki, Mineo</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</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>7TK</scope><scope>K9.</scope><scope>7X8</scope></search><sort><creationdate>201604</creationdate><title>Changes in Japanese eyes after laser peripheral iridotomy: an anterior segment optical coherence tomography study</title><author>Ang, Bryan CH ; Nongpiur, Monisha E ; Aung, Tin ; Mizoguchi, Takanori ; Ozaki, Mineo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4263-6476a4aa83630dd4c43706d5e3ac30dd375d61888f78f851017ff7916fc141e03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>angle opening distance</topic><topic>anterior chamber depth</topic><topic>Anterior Eye Segment - pathology</topic><topic>anterior segment optical coherence tomography</topic><topic>Argon Plasma Coagulation</topic><topic>Asian Continental Ancestry Group - ethnology</topic><topic>Female</topic><topic>Glaucoma, Angle-Closure - ethnology</topic><topic>Glaucoma, Angle-Closure - pathology</topic><topic>Glaucoma, Angle-Closure - surgery</topic><topic>Gonioscopy</topic><topic>Humans</topic><topic>Intraocular Pressure</topic><topic>Iridectomy</topic><topic>Iris - surgery</topic><topic>Japan - epidemiology</topic><topic>Laser Coagulation</topic><topic>laser peripheral iridotomy</topic><topic>Male</topic><topic>primary angle closure</topic><topic>Prospective Studies</topic><topic>Tomography, Optical Coherence</topic><topic>Tonometry, Ocular</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ang, Bryan CH</creatorcontrib><creatorcontrib>Nongpiur, Monisha E</creatorcontrib><creatorcontrib>Aung, Tin</creatorcontrib><creatorcontrib>Mizoguchi, Takanori</creatorcontrib><creatorcontrib>Ozaki, Mineo</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Clinical & experimental ophthalmology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ang, Bryan CH</au><au>Nongpiur, Monisha E</au><au>Aung, Tin</au><au>Mizoguchi, Takanori</au><au>Ozaki, Mineo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Changes in Japanese eyes after laser peripheral iridotomy: an anterior segment optical coherence tomography study</atitle><jtitle>Clinical & experimental ophthalmology</jtitle><addtitle>Clinical & Experimental Ophthalmology</addtitle><date>2016-04</date><risdate>2016</risdate><volume>44</volume><issue>3</issue><spage>159</spage><epage>165</epage><pages>159-165</pages><issn>1442-6404</issn><eissn>1442-9071</eissn><abstract>Background
The aim was to investigate the changes in anterior segment parameters, as assessed by anterior segment optical coherence tomography in Japanese subjects after laser peripheral iridotomy (LPI).
Design
This was a prospective observational study.
Participants
The participants include 72 subjects with angle closure including primary angle closure suspect (PACS), primary angle closure (PAC), and primary angle closure glaucoma (PACG).
Methods
Anterior segment optical coherence tomography parameters was measured by customized software. Complete data of 51 subjects were available for final analysis.
Main Outcome Measures
These were the following parameters: angle opening distance, trabecular‐iris space area, anterior chamber depth, width, area and volume (iris thickness, curvature, and area, and lens vault (LV).
Results
A total of 25 PACS, 17 PAC and 9 PACG were included. Mean age was 74.7 ± 6.7 years, and majority were women (80.4%). Following LPI, there was a significant increase in mean gonioscopic angle width (1.16 vs. 1.93, P < 0.001) and a corresponding increase in angle opening distance, trabecular‐iris space area, and angle recess area (all P < 0.001). The anterior chamber area (P < 0.001), anterior chamber volume (P < 0.001) and anterior chamber depth (P = 0.003) increased significantly; and iris curvature (P < 0.001) was significantly reduced. There were no significant changes in anterior chamber width, LV, iris thickness and area. Age‐adjusted and gender‐adjusted analysis for predictors of percentage change in angle opening distance 750 showed significant association with greater baseline LV (β = 0.32, P = 0.03). No significant differences were noted in the mean percentage change in parameters between the PACS and PAC‐PACG.
Conclusions
An increase in anterior chamber dimensions, angle widening and iris flattening; with a constant LV, iris thickness and iris area after LPI was demonstrated in Japanese eyes with angle closure.</abstract><cop>Australia</cop><pub>Blackwell Publishing Ltd</pub><pmid>26485668</pmid><doi>10.1111/ceo.12673</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Clinical & experimental ophthalmology, 2016-04, Vol.44 (3), p.159-165 |
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| subjects | Aged Aged, 80 and over angle opening distance anterior chamber depth Anterior Eye Segment - pathology anterior segment optical coherence tomography Argon Plasma Coagulation Asian Continental Ancestry Group - ethnology Female Glaucoma, Angle-Closure - ethnology Glaucoma, Angle-Closure - pathology Glaucoma, Angle-Closure - surgery Gonioscopy Humans Intraocular Pressure Iridectomy Iris - surgery Japan - epidemiology Laser Coagulation laser peripheral iridotomy Male primary angle closure Prospective Studies Tomography, Optical Coherence Tonometry, Ocular |
| title | Changes in Japanese eyes after laser peripheral iridotomy: an anterior segment optical coherence tomography study |
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