Results 291 to 300 of about 88,327 (313)
Some of the next articles are maybe not open access.
Journal of refractive surgery, 2017
PURPOSE To compare the prediction error in the calculation of toric intraocular lenses (IOLs) associated with methods that estimate the power of the posterior corneal surface (ie, Barrett toric calculator and Abulafia-Koch formula) with that of methods ...
Tiago B. Ferreira +3 more
semanticscholar +1 more source
PURPOSE To compare the prediction error in the calculation of toric intraocular lenses (IOLs) associated with methods that estimate the power of the posterior corneal surface (ie, Barrett toric calculator and Abulafia-Koch formula) with that of methods ...
Tiago B. Ferreira +3 more
semanticscholar +1 more source
The “V” Test for Astigmatism, and Astigmatic Charts in General
American Journal of Ophthalmology, 1923Abstract This is an historical and critical note on the V test and some others related to it.
openaire +3 more sources
IntraLase-Enabled Astigmatic Keratotomy for Postkeratoplasty Astigmatism
American Journal of Ophthalmology, 2008To report on the outcomes of IntraLase-enabled astigmatic keratotomy (IEAK) and to compare it with manual astigmatic keratotomy (AK) for the management of postkeratoplasty astigmatism.Retrospective, comparative case series.Forty eyes of 39 patients treated at a cornea clinic at the Toronto Western Hospital were included. Twenty eyes underwent manual AK
Irit Bahar +4 more
openaire +3 more sources
A genome-wide association study of corneal astigmatism: The CREAM Consortium
Molecular Vision, 2018Purpose To identify genes and genetic markers associated with corneal astigmatism. Methods A meta-analysis of genome-wide association studies (GWASs) of corneal astigmatism undertaken for 14 European ancestry (n=22,250) and 8 Asian ancestry (n=9,120 ...
Rupal L. Shah +42 more
semanticscholar +1 more source
Journal of refractive surgery, 2017
PURPOSE To evaluate 12-month changes in refraction, visual outcome, corneal densitometry, and postoperative aberrations after small incision lenticule extraction (SMILE) for myopic astigmatism. METHODS This 12-month prospective clinical trial comprised
I. B. Pedersen, A. Ivarsen, J. Hjortdal
semanticscholar +1 more source
PURPOSE To evaluate 12-month changes in refraction, visual outcome, corneal densitometry, and postoperative aberrations after small incision lenticule extraction (SMILE) for myopic astigmatism. METHODS This 12-month prospective clinical trial comprised
I. B. Pedersen, A. Ivarsen, J. Hjortdal
semanticscholar +1 more source
2018
In the previous chapter, we demonstrated the properties of spherical aberration and explored its behavior along the optical axis using transverse ray curves and spot diagrams. If spherical aberration were the only aberration in the lens, the performance would be the same across the entire field.
Julie L. Bentley, Donald C. O'Shea
openaire +2 more sources
In the previous chapter, we demonstrated the properties of spherical aberration and explored its behavior along the optical axis using transverse ray curves and spot diagrams. If spherical aberration were the only aberration in the lens, the performance would be the same across the entire field.
Julie L. Bentley, Donald C. O'Shea
openaire +2 more sources
Survey of Ophthalmology, 1987
With the numerous significant advances in surgical methodology--e.g., microinstrumentation, the operating microscope, the surgical keratometer, and intraocular lenses--that have been developed over the past two decades, both surgeons and patients have become increasingly aware of the final optic result of any surgical intervention.
openaire +2 more sources
With the numerous significant advances in surgical methodology--e.g., microinstrumentation, the operating microscope, the surgical keratometer, and intraocular lenses--that have been developed over the past two decades, both surgeons and patients have become increasingly aware of the final optic result of any surgical intervention.
openaire +2 more sources