Correlation between optical and psychophysical parameters as a function of defocus
To evaluate how ocular optical image quality and psychophysical estimates of visual performance compare to each other as a function of defocus. We measured the optical modulation transfer function using a double-pass apparatus and psychophysical estimates of visual performance: contrast sensitivity...
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| Veröffentlicht in: | Optometry and vision science 2002, Vol.79 (1), p.60-67 |
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| container_title | Optometry and vision science |
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| creator | VILLEGAS, Eloy A GONZALEZ, Concepcion BOURDONCLE, Bernard BONNIN, Thierry ARTAL, Pablo |
| description | To evaluate how ocular optical image quality and psychophysical estimates of visual performance compare to each other as a function of defocus.
We measured the optical modulation transfer function using a double-pass apparatus and psychophysical estimates of visual performance: contrast sensitivity function (CSF) and visual acuity. Both sets of data were obtained under the same optical conditions.
We measured optical and psychophysical parameters as a function of defocus. We studied the correlation between optical parameters (Strehl ratio and the logarithm of the volume in the double-pass image [log_Vol D-P]) and psychophysical parameters (the area under the fitted CSF represented in a logarithmic scale with the spatial frequency in linear scale [Area CSF-log_lin] and visual acuity) for different values of defocus.
Strehl ratio is well correlated with the psychophysical estimates of the visual performance for moderate amount of defocus (within 1 D), whereas the other parameter (log_Vol D-P) is well correlated for larger ranges of defocus (within 2 D) and for different pupil diameters. These results suggest that optical measurements could be used for clinical testing of ophthalmic optics. |
| doi_str_mv | 10.1097/00006324-200201000-00014 |
| format | Article |
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We measured the optical modulation transfer function using a double-pass apparatus and psychophysical estimates of visual performance: contrast sensitivity function (CSF) and visual acuity. Both sets of data were obtained under the same optical conditions.
We measured optical and psychophysical parameters as a function of defocus. We studied the correlation between optical parameters (Strehl ratio and the logarithm of the volume in the double-pass image [log_Vol D-P]) and psychophysical parameters (the area under the fitted CSF represented in a logarithmic scale with the spatial frequency in linear scale [Area CSF-log_lin] and visual acuity) for different values of defocus.
Strehl ratio is well correlated with the psychophysical estimates of the visual performance for moderate amount of defocus (within 1 D), whereas the other parameter (log_Vol D-P) is well correlated for larger ranges of defocus (within 2 D) and for different pupil diameters. These results suggest that optical measurements could be used for clinical testing of ophthalmic optics.</description><identifier>ISSN: 1040-5488</identifier><identifier>EISSN: 1538-9235</identifier><identifier>DOI: 10.1097/00006324-200201000-00014</identifier><identifier>PMID: 11828900</identifier><identifier>CODEN: OVSCET</identifier><language>eng</language><publisher>Hagerstown, MD: Lippincott Williams & Wilkins</publisher><subject>Adult ; Biological and medical sciences ; Contrast Sensitivity - physiology ; Female ; Humans ; Investigative techniques of ocular function and vision ; Investigative techniques, diagnostic techniques (general aspects) ; Male ; Medical sciences ; Psychophysics ; Refraction, Ocular ; Refractive Errors - physiopathology ; Visual Acuity - physiology</subject><ispartof>Optometry and vision science, 2002, Vol.79 (1), p.60-67</ispartof><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c341t-d3aab568af19b35e3afa74ec4bebfb885f63f2e34e48ff9bdbc9e41ebdb0d7f63</citedby><cites>FETCH-LOGICAL-c341t-d3aab568af19b35e3afa74ec4bebfb885f63f2e34e48ff9bdbc9e41ebdb0d7f63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13452146$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11828900$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>VILLEGAS, Eloy A</creatorcontrib><creatorcontrib>GONZALEZ, Concepcion</creatorcontrib><creatorcontrib>BOURDONCLE, Bernard</creatorcontrib><creatorcontrib>BONNIN, Thierry</creatorcontrib><creatorcontrib>ARTAL, Pablo</creatorcontrib><title>Correlation between optical and psychophysical parameters as a function of defocus</title><title>Optometry and vision science</title><addtitle>Optom Vis Sci</addtitle><description>To evaluate how ocular optical image quality and psychophysical estimates of visual performance compare to each other as a function of defocus.
We measured the optical modulation transfer function using a double-pass apparatus and psychophysical estimates of visual performance: contrast sensitivity function (CSF) and visual acuity. Both sets of data were obtained under the same optical conditions.
We measured optical and psychophysical parameters as a function of defocus. We studied the correlation between optical parameters (Strehl ratio and the logarithm of the volume in the double-pass image [log_Vol D-P]) and psychophysical parameters (the area under the fitted CSF represented in a logarithmic scale with the spatial frequency in linear scale [Area CSF-log_lin] and visual acuity) for different values of defocus.
Strehl ratio is well correlated with the psychophysical estimates of the visual performance for moderate amount of defocus (within 1 D), whereas the other parameter (log_Vol D-P) is well correlated for larger ranges of defocus (within 2 D) and for different pupil diameters. These results suggest that optical measurements could be used for clinical testing of ophthalmic optics.</description><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Contrast Sensitivity - physiology</subject><subject>Female</subject><subject>Humans</subject><subject>Investigative techniques of ocular function and vision</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Psychophysics</subject><subject>Refraction, Ocular</subject><subject>Refractive Errors - physiopathology</subject><subject>Visual Acuity - physiology</subject><issn>1040-5488</issn><issn>1538-9235</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkF1PwyAUhonROJ3-BdMbvatCgRYuzeJXssTE6DUBeshq2lKhjdm_F7fqCIQDPC-QB6GM4FuCZXWHUytpwfIC4wKTtMrTIOwInRFORS4Lyo9TjRnOORNigc5j_ExERXl5ihaEiEJIjM_Q28qHAK0eG99nBsZvgD7zw9hY3Wa6r7Mhbu3GD5tt3G0NOugORggx06lnburtLutdVoPzdooX6MTpNsLlPC_Rx-PD--o5X78-vazu17mljIx5TbU2vBTaEWkoB6qdrhhYZsA4IwR3JXUFUAZMOCdNbawERiAVuK7S4RLd7O8dgv-aII6qa6KFttU9-CmqirCykpImUOxBG3yMAZwaQtPpsFUEq1-f6s-n-vepdj5T9Gp-YzId1IfgLDAB1zOgY_Ljgu5tEw8cZbxI_6A_945_0w</recordid><startdate>2002</startdate><enddate>2002</enddate><creator>VILLEGAS, Eloy A</creator><creator>GONZALEZ, Concepcion</creator><creator>BOURDONCLE, Bernard</creator><creator>BONNIN, Thierry</creator><creator>ARTAL, Pablo</creator><general>Lippincott Williams & Wilkins</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>7X8</scope></search><sort><creationdate>2002</creationdate><title>Correlation between optical and psychophysical parameters as a function of defocus</title><author>VILLEGAS, Eloy A ; GONZALEZ, Concepcion ; BOURDONCLE, Bernard ; BONNIN, Thierry ; ARTAL, Pablo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c341t-d3aab568af19b35e3afa74ec4bebfb885f63f2e34e48ff9bdbc9e41ebdb0d7f63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Adult</topic><topic>Biological and medical sciences</topic><topic>Contrast Sensitivity - physiology</topic><topic>Female</topic><topic>Humans</topic><topic>Investigative techniques of ocular function and vision</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Psychophysics</topic><topic>Refraction, Ocular</topic><topic>Refractive Errors - physiopathology</topic><topic>Visual Acuity - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>VILLEGAS, Eloy A</creatorcontrib><creatorcontrib>GONZALEZ, Concepcion</creatorcontrib><creatorcontrib>BOURDONCLE, Bernard</creatorcontrib><creatorcontrib>BONNIN, Thierry</creatorcontrib><creatorcontrib>ARTAL, Pablo</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>MEDLINE - Academic</collection><jtitle>Optometry and vision science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>VILLEGAS, Eloy A</au><au>GONZALEZ, Concepcion</au><au>BOURDONCLE, Bernard</au><au>BONNIN, Thierry</au><au>ARTAL, Pablo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Correlation between optical and psychophysical parameters as a function of defocus</atitle><jtitle>Optometry and vision science</jtitle><addtitle>Optom Vis Sci</addtitle><date>2002</date><risdate>2002</risdate><volume>79</volume><issue>1</issue><spage>60</spage><epage>67</epage><pages>60-67</pages><issn>1040-5488</issn><eissn>1538-9235</eissn><coden>OVSCET</coden><abstract>To evaluate how ocular optical image quality and psychophysical estimates of visual performance compare to each other as a function of defocus.
We measured the optical modulation transfer function using a double-pass apparatus and psychophysical estimates of visual performance: contrast sensitivity function (CSF) and visual acuity. Both sets of data were obtained under the same optical conditions.
We measured optical and psychophysical parameters as a function of defocus. We studied the correlation between optical parameters (Strehl ratio and the logarithm of the volume in the double-pass image [log_Vol D-P]) and psychophysical parameters (the area under the fitted CSF represented in a logarithmic scale with the spatial frequency in linear scale [Area CSF-log_lin] and visual acuity) for different values of defocus.
Strehl ratio is well correlated with the psychophysical estimates of the visual performance for moderate amount of defocus (within 1 D), whereas the other parameter (log_Vol D-P) is well correlated for larger ranges of defocus (within 2 D) and for different pupil diameters. These results suggest that optical measurements could be used for clinical testing of ophthalmic optics.</abstract><cop>Hagerstown, MD</cop><pub>Lippincott Williams & Wilkins</pub><pmid>11828900</pmid><doi>10.1097/00006324-200201000-00014</doi><tpages>8</tpages></addata></record> |
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| ispartof | Optometry and vision science, 2002, Vol.79 (1), p.60-67 |
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| language | eng |
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| source | MEDLINE; Journals@Ovid LWW Legacy Archive; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Journals@Ovid Complete |
| subjects | Adult Biological and medical sciences Contrast Sensitivity - physiology Female Humans Investigative techniques of ocular function and vision Investigative techniques, diagnostic techniques (general aspects) Male Medical sciences Psychophysics Refraction, Ocular Refractive Errors - physiopathology Visual Acuity - physiology |
| title | Correlation between optical and psychophysical parameters as a function of defocus |
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