نتایج جستجو برای: scheimpflug camera

تعداد نتایج: 57591  

Journal: :Vision Research 2003
M. Dubbelman G. L. Van der Heijde H. A. Weeber G.F.J.M. Vrensen

Scheimpflug images were made of the unaccommodated and accommodated right eye of 102 subjects ranging in age between 16 and 65 years. In contrast with earlier Scheimpflug studies, the images were corrected for distortion due to the geometry of the Scheimpflug camera and the refraction of the cornea and the lens itself. The different nuclear and cortical layers of the human crystalline lens were...

2016

Cornea is unique to its transparency. It has Peculiar feature of transmitting almost all the light passing through it. Corneal clarity dwindles with surgical or pathological insults i.e. infections, corneal dystrophies and degenerations [1]. This induced corneal haze impedes the light rays to pass which results in backward scattering of light [2]. Maintaining regular surveillance over resulting...

Journal: :Vision Research 1995
J. Sheqem T. Böker M. Rauwolf A. Wegener

m In addition to gonioscopy ultmsound biomicmscopy and Scheimpflug photography can be used to measure the imterior chamber angle width. The same subjects were measured with all three diagnostic tools and then the values were compared. v The anterior chamber angle width was measured in eight meridians in bath eyes of 20 volunteers without any history of ophthalmological problems. Gonioswpy was p...

Journal: :Arquivos brasileiros de oftalmologia 2013
Fernando Faria Correia Isaac Ramos Cynthia J Roberts Andreas Steinmueller Matthias Krug Renato Ambrósio

PURPOSE To study the deformation response of three distinct contact lenses with known structures, which served as corneal models, under different chamber pressures using ultra-high-speed (UHS) Scheimpflug imaging. METHODS Three hydrophilic contact lenses were mounted on a sealed water chamber with precisely adjustable pressure: TAN-G5X (41% hydroxyethylmethacrylate/glycolmethacrylate, 550 µm ...

2012
Luca Buzzonetti Gianni Petrocelli Paola Valente

Purpose. To report the 12-month follow-up after big-bubble deep anterior lamellar keratoplasty (DALK) assisted by femtosecond laser that we have called IntraBubble. Methods. A 60 kHz IntraLase femtosecond laser (Abbott Medical Optics) firstly created a 30° angled intrastromal channel to insert the air injection cannula, 50 μ above the thinnest corneal site measured by Sirius Scheimpflug camera ...

Journal: :Vision Research 1995
UBM

m In addition to gonioscopy ultmsound biomicmscopy and Scheimpflug photography can be used to measure the imterior chamber angle width. The same subjects were measured with all three diagnostic tools and then the values were compared. v The anterior chamber angle width was measured in eight meridians in bath eyes of 20 volunteers without any history of ophthalmological problems. Gonioswpy was p...

2011
Zisis Gatzioufas Konstantinos Kopsidas Balasz Gyongyossy Marilita Moschos Berthold Seitz

Here, we report on a patient with pseudoexfoliation syndrome who developed acute angle-closure glaucoma with a marked myopic shift due to anterior dislocation of the posterior chamber intraocular lens almost 16 months after an uneventful phacoemulsification. Examination with a Scheimpflug camera was extremely useful in confirming the diagnosis. This is the fist case of late-onset angle-closure ...

Journal: :Applied optics 1995
A K Prasad K Jensen

A novel stereocamera has been developed based on the angular-displacement method, wherein the two camera axes are oriented in a nonorthogonal manner toward the object plane. The stereocamera satisfies the Scheimpflug condition such that the image plane, the object plane, and the lens plane are nominally colinear. A unique feature of the stereocamera is the introduction of a liquid prism between...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید