Results 211 to 220 of about 12,088 (233)

Ultrasound biomicroscopy in refractive surgery

Journal of Cataract and Refractive Surgery, 1994
The need for improved methods of assessing corneal topography arose from the advent of refractive surgery. Ultrasound biomicroscopy (UBM) is a high-resolution technique that uses high-frequency transducers to evaluate the cornea. We conducted a pilot study to assess the cornea after refractive surgery using UBM.
J, McWhae, A, Willerscheidt, H, Gimbel, M, Freese   +3 more
openaire   +2 more sources

Quantitative Ultrasound Biomicroscopy

2000
New imaging technologies are providing important information regarding disease pathophysiology, diagnosis, progression, and treatment. High-frequency ultrasound biomicroscopy (UBM, Paradigm Medical Industries, Inc., Salt Lake City, UT) provides high resolutionin vivoimaging of the anterior segment.
H. Ishikawa, J. M. Liebmann, R. Ritch
openaire   +1 more source

Ultrasound Biomicroscopy

Ultrasound Clinics, 2008
Charles J. Pavlin, E. Rand Simpson, F. Stuart Foster   +2 more
  +4 more sources

Ultrasound Biomicroscopy in Strabismus Reoperations

Journal of American Association for Pediatric Ophthalmology and Strabismus, 2006
To evaluate the accuracy of ultrasound biomicroscopy (UBM) for measuring the insertional distance from the limbus of horizontal extraocular muscles (EOM) that had previous surgery.This prospective, masked, observational study compared the distance of the horizontal EOM insertion from the limbus as measured by 50-MHz UBM, either preoperatively or at the
Shuan, Dai, Stephen P, Kraft, David R, Smith, J Raymond, Buncic   +3 more
openaire   +2 more sources

In vivo ultrasound biomicroscopy

1993 Proceedings IEEE Ultrasonics Symposium, 1993
A very high frequency ultrasonic biomicroscopy system (30-130 MHz) using a B-scan combined with a new Z-scan technique for in vivo imaging of the skin has been developed. To get high lateral resolution and a good signal to noise ratio, we utilized a very narrow focused single element ceramic transducer as used in conventional acoustic microscopy ...
C. Passmann, H. Ermert, T. Auer, K. Kaspar, S. el-Gammal, P. Altmeyer   +5 more
openaire   +1 more source

ULTRASOUND BIOMICROSCOPY

Ophthalmology Clinics of North America, 1998
J LIEBMANN, R RITCH, K ESAKI
openaire   +2 more sources

Ultrasound Biomicroscopy in Glaucoma

2016
Ultrasound biomicroscopy (UBM) is a high-resolution ultrasound technique, which allows noninvasive in vivo imaging of the anterior ocular segment. It shows excellent images of the anterior chamber angle, and the ciliary body. In glaucoma, UBM can be used to image the changes of the ocular structures after glaucoma surgery, such us filtering blebs and ...
Julián García-Feijoo, Carmen Méndez-Hernández, José María Martínez de la Casa, Federico Sáenz-Francés, Rubén Sánchez-Jean, Julián García-Sánchez   +5 more
openaire   +1 more source

Instrumentation for Ultrasound Biomicroscopy

1995
The essential component blocks of an ultrasound biomicroscope are identical to those of a conventional B-mode imaging system except that the operating frequency is approximately an order of magnitude higher. Achieving the goal of real time B-mode imaging at these frequencies required development of new technology in three important areas: (1 ...
Charles J. Pavlin, FS Foster
openaire   +1 more source

Biomicroscopy, Ultrasound

2012
Wolfgang Herrmann, Thomas Kohnen
openaire   +1 more source

Ultrasound Biomicroscopy*

2015
Giorgio Marchini, Piero Ceruti, Roberto Tosi, Gabriele Vizzari   +3 more
openaire   +1 more source