Results 201 to 210 of about 58,504 (253)
Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups
Advanced Materials Technologies, EarlyView.Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke +5 more
wiley +1 more source
Comparisons of wavefront refraction, autorefraction, and subjective manifest refraction [PDF]
Tzu Chi Medical Journal, 2013 ObjectivesTo compare cycloplegic wavefront refraction, autorefraction, and subjective manifest refraction.Materials and MethodsThirty-one myopic eyes in 17 patients were studied.
Yuan-Chieh Lee
exaly +2 more sources
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Refraction and refractive errors in an elderly population
Ophthalmic and Physiological Optics, 1988The data for this paper were collected during a two‐year study of the elderly in the market town of Melton Mowbray. The randomly selected subjects, aged 76 years of age and older, were found to be on average + 1.33 D hypermetropic and the average cylinder power was 0.82 D.
J R, Lavery +3 more
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Refractive lens exchange as a refractive surgery modality
Current Opinion in Ophthalmology, 2004Refractive lens exchange is becoming a more popular method of refractive surgery in the presbyopic patient. The limitations of keratorefractive surgery have led to a resurgence of lens exchange surgery for patients with prescriptions outside the limits of corneal refractive procedures, in addition to patients with routine refractive errors requesting a
Richard S, Hoffman +2 more
openaire +2 more sources
Refraction and refractive surgery
Acta Ophthalmologica, 2009AbstractAbstract not ...
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Archives of Ophthalmology, 1964
Only praise can be given to any book written by Sir Stewart Duke-Elder. His "The Practice of Refraction" is now in its seventh edition, which is proof enough of its worth. It is intended to be a practical and complete guide to the would-be refractionist, and this it is without burdening him with mathematical formulae and proof for every statement.
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Only praise can be given to any book written by Sir Stewart Duke-Elder. His "The Practice of Refraction" is now in its seventh edition, which is proof enough of its worth. It is intended to be a practical and complete guide to the would-be refractionist, and this it is without burdening him with mathematical formulae and proof for every statement.
openaire +1 more source
Refractive Miscalculation with Refractive Surprise
2008Although a refractive surprise due to an error in the sphere is quiet uncommon using excimer technology, its clinical impact may be devastating for the patient and the surgeon. There are several sources of mistakes that may cause a refractive surprise: a human source, laser-related condition, laser suite conditions, and the patient’s response to ...
Arturo S. Chayet +3 more
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American journal of optometry and physiological optic, 1978
ABSTRACT The actions and indications of cycloplegics are presented along with recommended dosages and uses for clinical measures of refractive error.
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ABSTRACT The actions and indications of cycloplegics are presented along with recommended dosages and uses for clinical measures of refractive error.
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Optometry and Vision Science, 1997
ABSTRACT Spherocylindrical optical elements can be decomposed into a sphere‐equivalent component and two cross‐cylinder components, oriented at 45° to one another. These components in turn can be represented with a simple matrix formalism.
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ABSTRACT Spherocylindrical optical elements can be decomposed into a sphere‐equivalent component and two cross‐cylinder components, oriented at 45° to one another. These components in turn can be represented with a simple matrix formalism.
openaire +2 more sources
JAMA, 1962
This book is the product of many years of thought and teaching by the author and deserves a place in the library of the discerning ophthalmologist. It has not been written to be a textbook, but rather a practical, clinically oriented handbook. The optics of certain visual problems are presented only when necessary, without the harassment of advanced ...
openaire +1 more source
This book is the product of many years of thought and teaching by the author and deserves a place in the library of the discerning ophthalmologist. It has not been written to be a textbook, but rather a practical, clinically oriented handbook. The optics of certain visual problems are presented only when necessary, without the harassment of advanced ...
openaire +1 more source