A system for determining a spherical power of the eyes of the subject based on the measured refractive error associated with the red reflex image is provided. The system (i) predicts a position of a plurality of facial landmarks on the facial image of the subject, (ii) extracts the eyes...
Sphere (SPH) – The term “sphere” means thatthe correction for nearsightedness or farsightedness is spherical, equal in all meridians of the eye. This indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness. What does spherical ...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook spherical equivalent A spherical power whose focal point coincides with the circle of least confusion of a spherocylindrical lens. Hence, the spherical equivalent of a prescription is equal to the algebraic sum of...
but these are our favorite picks for the wired mom in your life. nena farrell our favorite digital notebooks and smart pens these nifty tools combine the ease of jotting notes by hand with the power of saving them digitally. nena farrell 23 gifts for dads who don't need anything the best...
摘要: PurposeTo compare depth of focus of eyes with the aspheric Tecnis ZA9003 intraocular lens (IOL) with that of eyes with the spherical Sensar AR40e IOL, using two different definitions of depth of focus, and to relate the depth of focus to the amount of spherical aberration....
Jun1, YJ Choi1, EK Kim2, KY Seo1 and T-i Kim1 Abstract Purpose To demonstrate the results of the ray tracing-type aberrometer in measuring spherical aberration (SA) in pseudophakic eyes with monofocal intraocular lens (IOL), aspheric monofocal IOL, or aspheric diffractive multifocal IOL....
aWhat do you do in your free time? 您做什么在您的空闲时间?[translate] athe poeple 人民[translate] aGuzerat and Golconda, Guzerat和Golconda,[translate] athey have three-dimensional facial features ,beautiful eyes color,really like doll 他们有三维面部特点,美好的眼睛颜色,真正地象玩偶[translate]...
The position of the principal planes with respect to the vertexes may also be determined from the values of r1, r2,n, andd. The distance between the principal planes is relatively independent of the form and power of a lens and is approximately equal to[d(n— 1)]/n. In the case of...
aThe drive trainform the diesel engine via torque converter and power shift gear to the drive wheels ensures optimum transfer of the engine output to the ground. 推进trainform柴油引擎通过变扭器和力量转移齿轮到驱动轮保证输出的引擎的最宜的调动到地面。 [translate] aIf the heart only eyes will ...
PurposeWe tested the hypothesis that pupil apodization is the basis for central pupil bias of spherical refractions in eyes with spherical aberration.Metho... R Xu,A Bradley,LN Thibos - 《Ophthalmic & Physiological Optics》 被引量: 51发表: 2013年 On- and off-eye spherical aberration of soft...