Abstract:
PURPOSE:To compare three different methods of measuring corneal thickness (CT) and anterior chamber depth (ACD). DESIGN:Prospective clinical trial (Medical University of Vienna, Austria). METHODS:Central CT (CCT), CT at four peripheral points, and central ACD were measured in 88 eyes of 44 healthy subjects with the Pentacam (rotating Scheimpflug camera; Oculus, Wetzlar, Germany), Orbscan I (scanning-slit topography system; Orbtek Inc, Salt Lake City, Utah, USA), and AC-Master (partial coherence interferometry; Zeiss Meditec, Jena, Germany), and the results were compared. RESULTS:The upper (lower) limits of agreement for CCT measurements were 7.9 (-22.2) microm between AC-Master and Pentacam, 17.6 (-32.5) microm between AC-Master and Orbscan, and 25.2 (-25.9) microm between Pentacam and Orbscan. Correlation was high between all three methods (r = 0.94 to 0.97). The upper and lower limits of agreement for ACD were 0.174 (-0.251) mm between AC-Master and Pentacam, 0.406 (-0.004) mm between AC-Master and Orbscan, and 0.384 (0.095) mm between Pentacam and Orbscan. Correlation was high between the three methods (r = 0.96 between Orbscan and Pentacam; others 0.92). Correlation was lower for the CT measurements at the four peripheral points. CONCLUSIONS:The CCT and ACD values obtained by Pentacam, Orbscan, and AC-Master measurements correlated well and showed few outliers. The two new systems (Pentacam, AC-Master) provide a reliable, easy-to-use, noncontact method of measuring CCT and ACD. Larger differences occurred only when measuring peripheral CT values, especially between AC-Master and the other two methods.
journal_name
Am J Ophthalmoljournal_title
American journal of ophthalmologyauthors
Buehl W,Stojanac D,Sacu S,Drexler W,Findl Odoi
10.1016/j.ajo.2005.08.048subject
Has Abstractpub_date
2006-01-01 00:00:00pages
7-12issue
1eissn
0002-9394issn
1879-1891pii
S0002-9394(05)00971-2journal_volume
141pub_type
临床试验,杂志文章abstract:PURPOSE:To evaluate the complications associated with the primary placement of a motility coupling post (MCP) in spherical porous polyethylene (PP) implants at the time of enucleation. DESIGN:Retrospective, interventional case series. METHODS:The records of all patients who had undergone primary enucleation and spher...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
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更新日期:2007-05-01 00:00:00
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journal_title:American journal of ophthalmology
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journal_title:American journal of ophthalmology
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2013-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:1980-05-01 00:00:00
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pub_type: 临床试验,杂志文章
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