{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:30:31Z","timestamp":1790728231385,"version":"4.1.0"},"reference-count":45,"publisher":"IOP Publishing","issue":"3","license":[{"start":{"date-parts":[[2017,1,19]],"date-time":"2017-01-19T00:00:00Z","timestamp":1484784000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2017,1,19]],"date-time":"2017-01-19T00:00:00Z","timestamp":1484784000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"funder":[{"name":"National Institute of Health","award":["1R01HL120140"],"award-info":[{"award-number":["1R01HL120140"]}]},{"name":"DOD CDMRP","award":["PR150338"],"award-info":[{"award-number":["PR150338"]}]}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Phys. Med. Biol."],"published-print":{"date-parts":[[2017,2,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Intraocular pressure (IOP) is believed to influence the mechanical properties of ocular tissues including cornea and sclera. The elastic properties of the crystalline lens have been mainly investigated with regard to presbyopia, the age-related loss of accommodation power of the eye. However, the relationship between the elastic properties of the lens and IOP remains to be established. The objective of this study is to measure the elastic wave velocity, which represents the mechanical properties of tissue, in the crystalline lens\n                    <jats:italic>ex vivo<\/jats:italic>\n                    in response to changes in IOP. The elastic wave velocities in the cornea and lens from seven enucleated bovine globe samples were estimated using ultrasound shear wave elasticity imaging. To generate and then image the elastic wave propagation, an ultrasound imaging system was used to transmit a 600\n                    <jats:italic>\u00b5<\/jats:italic>\n                    s pushing pulse at 4.5 MHz center frequency and to acquire ultrasound tracking frames at 6\u2009kHz frame rate. The pushing beams were separately applied to the cornea and lens. IOP in the eyeballs was varied from 5 to 50 mmHg. The results indicate that while the elastic wave velocity in the cornea increased from 0.96\u2009\u2009\u00b1\u2009\u20090.30 m s\n                    <jats:sup>\u22121<\/jats:sup>\n                    to 6.27\u2009\u2009\u00b1\u2009\u20090.75 m s\n                    <jats:sup>\u22121<\/jats:sup>\n                    as IOP was elevated from 5 to 50 mmHg, there were insignificant changes in the elastic wave velocity in the crystalline lens with the minimum and the maximum speeds of 1.44\u2009\u2009\u00b1\u2009\u20090.27 m s\n                    <jats:sup>\u22121<\/jats:sup>\n                    and 2.03\u2009\u2009\u00b1\u2009\u20090.46 m s\n                    <jats:sup>\u22121<\/jats:sup>\n                    , respectively. This study shows that ultrasound shear wave elasticity imaging can be used to assess the biomechanical properties of the crystalline lens noninvasively. Also, it was observed that the dependency of the crystalline lens stiffness on the IOP was significantly lower in comparison with that of cornea.\n                  <\/jats:p>","DOI":"10.1088\/1361-6560\/aa54ef","type":"journal-article","created":{"date-parts":[[2016,12,20]],"date-time":"2016-12-20T12:15:15Z","timestamp":1482236115000},"page":"N45-N57","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":26,"title":["The impact of intraocular pressure on elastic wave velocity estimates in the crystalline lens"],"prefix":"10.1088","volume":"62","author":[{"given":"Suhyun","family":"Park","sequence":"first","affiliation":[{"name":"University of Texas at Austin"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heechul","family":"Yoon","sequence":"additional","affiliation":[{"name":"Georgia Institute of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kirill V","family":"Larin","sequence":"additional","affiliation":[{"name":"University of Houston"},{"name":"Baylor College of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stanislav Y","family":"Emelianov","sequence":"additional","affiliation":[{"name":"Georgia Institute of Technology"},{"name":"Georgia Institute of Technology and Emory University School of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Salavat R","family":"Aglyamov","sequence":"additional","affiliation":[{"name":"University of Texas at Austin"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2017,1,19]]},"reference":[{"key":"pmbaa54efbib001","doi-asserted-by":"publisher","first-page":"1927","DOI":"10.1121\/1.2774754","type":"journal-article","article-title":"Motion of a solid sphere in a viscoelastic medium in response to applied acoustic radiation force: theoretical analysis and experimental verification","volume":"122","author":"Aglyamov","year":"2007","journal-title":"J. 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All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2016-08-29","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2016-12-20","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2017-01-19","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}