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degree prism lens processing of the baseline to determine a
, learning objectives
degree prism lens processing baseline lens processing time is an important line of work, have asked a variety of prism lens degree of processing to determine the baseline.
II, working procedures When
degree prism lens processing center established, the lenses on the three-point mark in the middle of a point that is the prism lens degree of processing centers, three degrees of connection is the prism lens processing baseline. Baseline in the installation of concrete frames in height, according to the Read more »

one
learning objectives of this unit through learning so that students will learn how to use the lens focal meters, to check the computer chip, to the degree of prism lenses localization method of processing centers.
Second, we must first work
measured degree prism lens of the basement, and then determine Machining Center.
1. focal lens meter to determine methods of processing center will contain
degree prism lens placed in the lens focal lens meter on the stage, the lenses to adjust the level of lifting platform, and then fixed lens, in accordance with the requirements prescr Read more »

both suffering from the shackles of youth glasses, or cataract deep suffering of the elderly, people seeking a clear vision of the aspirations of the moment did not stop. However, some wrong thinking, we often stopped to catch up with the pace. Second Military Medical University Eye Hospital, director of the Long March Professor Wei Ruili, one by one for your spirit, cracked eye disease prevention and control of the big 4 thinking it.
thinking 1: laser surgery choose not to object?
not all patients are suitable for laser surgery to correct myopia, excimer laser surgery also pick the t Read more »

a study aimed at
through this unit you will be able to learn the correct use of oxygen double MoistureLoc contact lens on the heating and care for and understanding of the dual-use liquid oxygen care and attention to the heating mechanism and related matters.
two steps
(a) two-care liquid oxygen
1. and in law (two-step)
(1) in the lens into the cup with 3% hydrogen peroxide solution, not more than attention to the plane liquid water line.
(2) will clean off by the soft lens into the eye of other separate folder inside the chip basket. Soak overnight (6h).
(3) morning the Read more »

one goal
learning to master eyeglasses progressive multifocal prescription adjustment method.
II
steps for progressive multifocal glasses prescription adjustment, for example used to illustrate the way.
Example 1: A comfortable way to wear the wan-3 on the customer's request to use the same distribution of prescription Second Vice-Wan Road, comfortable glasses, but a small selection of frames of the frame.
away with a prescription for:
R:-7.50DSADD: 2.50D
L:-6.50DSADD: 2.50D
customer does not wear his symptoms:
(1) near the middle of the region by region and the o Read more »