a learning goal
grasp incremental lens does not rule out the methods and the main reason.
two steps
1. request does not wear those who described how, to encourage them to elaborate.
2. to understand the past history of wear and analysis of the original glasses and the difference between the new glasses.
3. re-marked in the progressive lenses on all the tags: first fluorescent lamp lenses at a 2-point hidden in small imprinting, and then the glasses lens on the surface of the outer lens measuring card (leg-up), 2 hidden in small imprinting at the location on a small map marking the location, according to the map of the location marked on the lens and optical cross lines, with reference to the far circle, with reference to the last lap.
4. spectacles check the mirror before the formation, inclination, stipule symmetry.
5. wear so that those who put on after the review from the eye lens, frames the surface curves.
6. and optical cross-check line with the pupil at the center. The use of wear mirror to check whether the law through the region with nearly as complex.
7. observing those who wear progressive lenses when using long-range, medium-range and short-time as the correct position.
8. re-measurement to determine the lens of the microscope lenses and optometry degree single line.
9. who will wear the symptoms and discomfort over the checks and link analysis.
III Notes
1. the vast majority of people in the right optical and optical methods of distribution under the progressive lenses are able to adapt.
2. for a small fraction of those who wear adapted, the main reason there are problems optometry, and optical problems, those who wear the understanding of the problem.
3. lenses and the comfort of the following factors: the optical lens design, the accuracy of optometry, and optical accuracy, those who wear the understanding.
four or knowledge
1. increases as the light of the regulatory function of the decline in the eyes of a help, eyes should be about the same. Therefore, optometry, refraction to determine when the far spent, should be carried out around the same time, the eyes light of the recent increase in use to determine. If measured separately, around the eyes light plus inconsistent, as well as the prism lens design issues such as to cause discomfort.
2. in the progressive lens wear, when customers select frames, must be carried out after school with measurements, or measuring the value of the error will be larger.
3. to never have to wear glasses of light old, wearing a progressive lens than myopia is not necessarily easy to adapt to that, for much of their vision with the determination to pay attention because they look far when there may be minor or a refraction of eyes Diopter, special care is needed.
4. mirror the law steps
(1) mark will be good for customers to wear glasses; (2) and optometrists who wear one across the tables to sit down face-to-face; (3), a painting is closely monitoring the development goals Small mirror placed between the two; (4) Please see those who wear mirrors on the objectives of attention, and optometrists with the nose of those who wear nose in the same plane; (5) to the right eye of optometrists Under the mirror, looking at those who wear the right eye (and those who wear the same line of sight of the plane); (6) will pen flashlight near the optometrist's right eye in the mirror and exposure to the (optometrists should be left closed Eye); (7) to observe those who wear the right eye in the mirror reflection, this should be located close to the mark on the lens with reference to the circle, the figure 2-2-7; (8) Repeat the above steps to observe the left Eye.