Influence of the signal-to-noise ratio on the accuracy of IOLMaster measurements
Influence of the signal-to-noise ratio on the accuracy of IOLMaster measurements
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DOI：
10.1016/j.jcrs.2007.07.031
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发表时间：
2007-12-01
影响因子：
2.8
通讯作者：
Hori, Sadao
中科院分区：
文献类型：
--
作者：
Suto, Chikako;Sato, Chdaki;Hori, Sadao
PURPOSE: To evaluate the relationship between the sound-to-noise ratio (SNR) and the reliability of axial length (AL) measurements obtained with the IOLMaster (Carl Zeiss Meditec AG).SETTING: Department of Ophthalmology, Saiseikai Kurihashi Hospital, Saitama, Japan.METHODS: In a clinical prospective study, 216 consecutive eyes of 144 patients scheduled for cataract surgery were evaluated for the type and severity of cataract using the Lens Opacities Classification System III. Preoperative and postoperative AL measurements were performed with the IOLMaster. The preoperative SNR values were used to divide the eyes into 5 groups. The following were compared between the groups: preoperative logMAR best spectacle-corrected visual acuity (BSCVA), difference in AL between preoperatively and postoperatively, error in the postoperative predicted refraction, and type and severity of cataract.RESULTS: The preoperative logMAR BSCVA was significantly worse in eyes with an SNR
