The optic with a single focal point has a central area of increased power of less than 1.0 diopter to aid near vision. A method is disclosed of implanting the present lens in the non-dominant eye of a patient.カミング, ジェイ. スチュワート...
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...
A limited but significant induction of primary spherical aberration and coma was also found and a surgical enhancement was required in four eyes (7.8%). Surgical treatment of high myopia Viewed at high power, stars looked "textbook perfect," with little evidence of spherical aberration disturbing ...
A perfect lens would have all light rays converge in a single focal point, as illustrated below: The best focus point with the circle of least confusion is therefore located right on this focal point. A normal spherical lens design would not allow the above to happen though, so specialized ...
Prediction errors of Zcalc are small in all eyes and prone to positive deviation. For more accurate prediction, we recommend Barrett Universal II formula for 709 IOL power calculation. 展开 关键词: Zcalc Formula Toric IOL Prediction error ...
In this work, we have also studied the stereopsis of different subjects using a holographic image. Stereopsis is the perceptive capacity that allows you to merge the images from the two eyes, which because of their different structural positioning, presenting a lateral displacement. The resultant di...
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 ...
The optical step has repidly increasing power in the radial... Griffin, Richard A. 被引量: 80发表: 0年 Optics of conductive keratoplasty: Implications for presbyopia management PURPOSE: To define the corneal optics of conductive keratoplasty (CK) and assess the clinical implications for hyper...
Inclusion criteria were as follows: (1) aged 6 to 12 years; (2) cycloplegic spherical equivalent error (SER) of between −6 diopters (D) and 3 D in both eyes; for children without myopia, the change in SER was −0.75 D or less in the last year; (3) astigmatism ...
For example, an opaque image can be used to effectively block a user's view of real world objects in a scene. Precise alignment of complementary images presented to the right and left eyes facilitates perception of a single unified image by the user. Angles of the projected light from the ...