Results 231 to 240 of about 45,093 (263)
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[The measurement of eye axial length by ultrasound].
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation, 1998Ultrasonic biometer is the best method of eye axial length measurement now. In this paper, our biometric method is introduced. It can measure the anterior chamber depth, lens thickness, vitreous length and axial length automatically, which are important to intraocular implant (IOL).
J, Yang, X, Song, Y, Wang
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Relationship between axial length and chromatic refraction of the eye
Ophthalmic and Physiological Optics, 1992A new mathematical expression is derived to provide an estimate, a x , of the axial length of the human schematic eye. Approximations in the expression are made after considering effects in the Gullstrand‐Emsley schematic eye.
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The accuracy of ultrasonic determination of axial length in pseudophakic eyes
Acta Ophthalmologica, 1989Abstract. The axial length was calculated by refractive means in 206 pseudophakic eyes and compared with the axial length measured by ultrasound using a Kretz 7200 MA A‐scanner or a Sonometrics DBR 400 scanner. The difference (± sd) between the calculated and the measured axial length was 0.13 mm (± 0.54) and 0.08 mm (± 0.28) using the Kretz and ...
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Journal of American Association for Pediatric Ophthalmology and Strabismus
To compare axial length (AL) estimates of myopic eyes obtained using an axial length estimator (ALE) and AL measurements made with the IOLMaster 700 in India and the Lenstar 900 in Vietnam.This multicenter retrospective cross-sectional study analyzed masked data of both eyes from myopic children (
Thao Ha +7 more
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To compare axial length (AL) estimates of myopic eyes obtained using an axial length estimator (ALE) and AL measurements made with the IOLMaster 700 in India and the Lenstar 900 in Vietnam.This multicenter retrospective cross-sectional study analyzed masked data of both eyes from myopic children (
Thao Ha +7 more
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Axial Length in Eyes with Macular Hole
Ophthalmology, 2013Takeshi, Iwase, Brian C, Oveson
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Reduction in Axial Length with Age
American journal of optometry and physiological optic, 1987ABSTRACT Mechanisms accounting for the fact that the eye tends to become and remain emmetropic have been proposed for the developing eye, but no such mechanisms have been proposed for the adult eye. In the study reported here, refractive component data published by Sorsby and his co‐workers were reanalyzed in terms of the variations ...
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[Accuracy of ultrasound measurements of the axial length of the eye].
Ceskoslovenska oftalmologie, 1991Ultrasonic assessment of the axial length of the eye provides important baseline data for the calculation of the dioptric power of an artificial intraocular lens. The accuracy of ultrasonic biometry performed by an OPHTASCAN B apparatus is discussed based on evaluation of a group of repeated measurements of the axial length and depth of the anterior ...
P, Kavan, E, Vlková, J, Blazek
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[Laser optic measurements of the axial length of the eye].
Fortschritte der Ophthalmologie : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft, 1989A new method has been developed for determining the axial length of the human eye. This method is based on laser interferometry with partially coherent light emitted by a multimode semiconductor laser diode. The measurement procedure is as follows. The subject looks into the laser beam (wavelength approximately equal to 780 nm, power approximately ...
C, Hitzenberger +2 more
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Modified axial length adjustment formulas in long eyes
Journal of Cataract and Refractive Surgery, 2018Li, Wang, Douglas D, Koch
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