Abstract:
:Conventional Scheimpflug photography uses slits with a constant width of 80 microns. This parameter limits the resolution as sharp contours are imaged with a basic uncertainty. In order to reduce this basic uncertainty we developed an illumination slit with a width of 20 microns and less, using a green helium-neon laser (543 nm). With this slit, much sharper imaging of ocular contours can be achieved. Since this illumination is coupled to on-line videographic detection of the Scheimpflug image, any adjustment of the target is done under visual control at the monitor. Using this device, the slope of a densitogram of contrasted contours (for example the corneal surfaces) is steeper, which guarantees a more accurate detection of corneal thickness and curvature.
journal_name
Ophthalmic Resjournal_title
Ophthalmic researchauthors
Huebscher HJ,Möller DE,Seiler Tdoi
10.1159/000267967subject
Has Abstractpub_date
1996-01-01 00:00:00pages
127-30eissn
0030-3747issn
1423-0259journal_volume
28 Suppl 2pub_type
杂志文章abstract::Extracellular recordings were performed on electrophysiologically identified achromatic neurons of the photosensitive pineal organ of the frog. The effects of iontophoretically applied aspartate and glutamate as well as one aspartate antagonist (D-alpha-aminoadipate) were observed on spontaneous activity and light-evo...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000265304
更新日期:1984-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
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更新日期:2017-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
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更新日期:2009-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000267984
更新日期:1997-01-01 00:00:00
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journal_title:Ophthalmic research
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更新日期:2008-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
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更新日期:1990-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000267045
更新日期:1990-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
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更新日期:2000-11-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章,多中心研究
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更新日期:2017-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: meta分析
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更新日期:2020-08-11 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000327593
更新日期:2012-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
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更新日期:1987-01-01 00:00:00
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更新日期:2011-01-01 00:00:00
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pub_type: 杂志文章,多中心研究
doi:10.1159/000438793
更新日期:2015-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000505976
更新日期:2020-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000338749
更新日期:2012-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000063879
更新日期:2002-07-01 00:00:00
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pub_type: 杂志文章
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journal_title:Ophthalmic research
pub_type: 杂志文章
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更新日期:2008-01-01 00:00:00
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更新日期:2020-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2009-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000490914
更新日期:2018-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
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更新日期:1988-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
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更新日期:1986-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000081204
更新日期:2004-09-01 00:00:00
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journal_title:Ophthalmic research
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更新日期:2004-11-01 00:00:00
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pub_type: 杂志文章
doi:10.1159/000267569
更新日期:1995-01-01 00:00:00
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journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000355065
更新日期:2014-01-01 00:00:00