Results 221 to 230 of about 7,287 (251)
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Lenstar Versus Ultrasound for Ocular Biometry in a Pediatric Population

Optometry and Vision Science, 2011
ABSTRACT Purpose. To compare the central corneal thickness (CCT), axial length (AL), anterior chamber depth (ACD), and lens thickness (LT) measured with Lenstar with those obtained with ultrasound pachymetry and A‐scan contact ultrasound (ASU) in children.
Huseyin, Gursoy   +5 more
openaire   +2 more sources

Ultrasound biometry and fetal growth restriction

Fetal and Maternal Medicine Review, 2002
With the ascendancy of biophysical assessment with Doppler velocimetry, and the establishment of routine scan dating in early pregnancy, there needs to be a radical re-think of the role of ultrasound biometry in the definition and assessment of fetal growth restriction (FGR).Doppler flow velocimetry of the umbilical artery has proven its value in ...
openaire   +1 more source

Influence of operator experience on the performance of ultrasound biometry compared to optical biometry before cataract surgery

Journal of Cataract and Refractive Surgery, 2003
To compare measurements performed with the IOLMaster (Carl Zeiss, Meditec AG) with those obtained by applanation ultrasound (US) and manual keratometry and to evaluate the effect of operator experience on US biometry.Department of Ophthalmology, University of Vienna, Vienna, Austria.The axial length (696 eyes) and anterior chamber depth (ACD) (462 eyes)
Oliver, Findl   +11 more
openaire   +2 more sources

Comparison of Corneal Versus Through-the-Lid A-Scan Ultrasound Biometry

Optometry and Vision Science, 1997
ABSTRACT Background. Accurate ultrasonography data on axial ocular dimensions in infants and toddlers are essential for understanding ocular development. Conventional methods using corneal contact with topical anesthesia but without sedation are not feasible for most of these patients.
J D, Twelker   +3 more
openaire   +2 more sources

Biometry/Axial Length in Ophthalmic Ultrasound

Journal of Diagnostic Medical Sonography, 1999
Biometry/axial length is an A-scan measurement from theeleading edge of cornea to the leading edge of the retina. This measurement is used to calculate the implant power of the intraocular lens (IOL). The biometry examination is a primary Wand essential part of cataract extraction and IOL surgery.
openaire   +1 more source

Submandibular gland biometry by high frequency ultrasound

Journal of the Anatomical Society of India, 2016
Abstract Introduction Submandibular glands are involved in many disease processes. Acute viral and bacterial inflammatory diseases are the most common causes of submandibular gland enlargement. Reduction in their size is observed in chronic inflammation and after radiation therapy. Various benign and malignant neoplasms also affect them.
Deepali Onkar, Prashant Onkar
openaire   +1 more source

[Comparison of contact and immersion techniques of ultrasound biometry].

Ceska a slovenska oftalmologie : casopis Ceske oftalmologicke spolecnosti a Slovenske oftalmologicke spolecnosti, 2008
Biometry, i. e. the measurement of the eye axial length, is performed in patients before cataract surgery. Together with keratometry, it serves for the calculation of the intraocular lens refractive (dioptric) power. The purpose of our study was to determine whether contact and immersion A-scan ultrasound techniques produce comparable measurements of ...
J, Hrebcová, A, Vasků
openaire   +1 more source

Ophthalmic Biometry Using Ultrasound

International Ophthalmology Clinics, 1969
openaire   +2 more sources

Egyptian fetal ultrasound biometry

Middle East Journal of Medical Genetics, 2012
Moushira Erfan Zaki   +4 more
openaire   +1 more source

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