Partial coherence interferometry versus immersion ultrasonography for axial length measurement in children
نویسندگان
چکیده
منابع مشابه
Immersion A-scan compared with partial coherence interferometry: outcomes analysis.
PURPOSE To compare 2 methods of axial length measurement, immersion ultrasonography and partial coherence interferometry, and to elucidate surgical outcomes based on immersion measurements. SETTING Oregon Eye Institute, Eugene, Oregon, USA. METHODS Axial length measurements in 50 cataractous eyes were obtained by optical biometry (IOLMaster, Zeiss Humphrey Systems) and immersion ultrasound ...
متن کاملAxial localization of luminophores by partial coherence interferometry
We propose a solution for increasing the axial resolution of confocal microscopes. In the experimental set-up described in this paper an interference phenomenon between two counterpropagating beams is used to determine the axial position of a luminophore. The optical path difference between the two waves, which is related to the position of the luminophore, is recovered thanks to a second inter...
متن کاملPartial Coherence Laser Interferometry in Highly Myopic versus Emmetropic Eyes
PURPOSE To investigate the reliability of partial coherence laser interferometry for optical biometry in highly myopic eyes. METHODS Axial length measurements by the IOLMaster (Carl Zeiss Meditec, Germany) with signal-to-noise ratio (SNR) ≥2 were performed in 52 consecutive myopic subjects with axial length ≥26.5 mm and 45 emmetropic patients before cataract surgery. Axial length measurements...
متن کاملAccuracy of axial length measurements from immersion B-scan ultrasonography in highly myopic eyes.
AIM To evaluate the accuracy of axial length (AL) measurements obtained from immersion B-scan ultrasonography (immersion B-scan) for intraocular lens (IOL) power calculation in patients with high myopia and cataracts. METHODS Immersion B-scan, contact A-scan ultrasonography (contact A-scan), and the IOLMaster were used to preoperatively measure the AL in 102 eyes from 102 patients who underwe...
متن کاملaxial length measurement in asteroid hyalosis: comparing laser interferometry and ultrasound a-scan
purpose : to compare laser interferometry (li) and ultrasound a-scan in measurement of axial length ( al ) in eyes with asteroid hyalosis methods : twenty three patients with unilateral moderate to severe asteroid hyalosis determined by b-scan ultrasonography images participated in the study. the al measurements were obtained by li and ultrasound a-scan in both asteroid hyalosis and noninvolved...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cataract and Refractive Surgery
سال: 2010
ISSN: 0886-3350
DOI: 10.1016/j.jcrs.2010.07.013