Check the quality of the main tools glasses optics of the instrument. While it can be accurate, but for ordinary consumers, brief strong operational test method seems more attractive. On white paper with a fine strokes a big cross, the strokes should be clear and straight. Handheld lens placed between the eye and the Cross, with an eye in the mirror the shape of the observed cross strokes, inside and outside mirror if the stroke is not a line. With a brush or a fountain at the center point of the lens cross a small point, this point is the optical center. Two lenses are point out the optical center, the optical center is observed and compared with bilateral symmetry, and with a small ruler to measure the distance between the centers are two provisions of the pupil with the same distance prescription. If the lens of the cross strokes bend, then the existence of internal stress lenses or optical density in homogeneities problems.
The lens is at the top of the cross graphics rotation, showing the cross in the lens of cross movement, until the lens inside and outside of the cross strokes linked graphics, the graphics were positively cross, this time unanimously cylinder axis and the straight line, and then the lenses were repeated along a straight line move; observe which of the straight line and the lens is moved out of the line shifted more, the direction of this line is the axis of astigmatism. Move the lens so that the inside and outside linear alignment, here astigmatic axis. Delineation of the lens and the amount of solution is measured at the center of the lens axis and the horizontal angle, that is, the axial degree. Although these methods are able to know a good spectacle bad, but it would be best to buy Tiffany Outlet glasses store or go to a professional shop to buy, have more quality assurance. Work with your eyes now more and more people, people who wear glasses more and more, along with the increase of spectacles, glasses on the bridge of the nose has a deep indentation up, if you went on a date or play, do not want to wear glasses, the indentation appeared on the bridge of the nose, and that more ugly ah, remove the glasses into the beauty of the indentation we must pay attention to.
The biggest reason is the indentation formed glasses nose stays at the bottom of two plastic stipules harden with age, and we can not get timely discovered and replaced. Generally, we glasses, if not an increase in the degree will not be re- equipped one, and one that is worn for several years, but the shore below the bridge of the nose glasses at the two plastic Stipules not so sustain, and they year generally will be aging out, especially in the hot summer, we will sebum on the bridge of the nose to make plastic aging discoloration, sometimes turns yellow, then you will find that they become very hard, just like with when it softened. Then you have to store Cheap Oakleys glasses immediately to allow the owner to you for two, for the little things generally do not make money, so I suggest changed once a year, do not wait until they change color harden to your nose carved think of it printed before replacement. Spectacles high, the lens will be a corresponding sink, plus the weight of the glasses, so the choice is also very particular glasses. Now there are a lot of frame styles, in order to eliminate the indentation, you should try to choose a frame of light, I recommend half- rim frame or frameless glasses frames, the best choice for resin material, resin lens material is also the best choice, and lightweight.
Indentation is framed glasses wearing traces, if it is to wear contact lenses would not have, in order to reduce the burden on the nose, you can always replace the contact lens wear, which helps to relieve the pressure on the nose, but also to change the image. Right indentation area to do a massage or do eye exercises. Glasses on the bridge of the nose position is very tired one day be pressing glasses, blood circulation is not good, so it is easy to form the indentation, so one time we can massage the bridge of the nose, the Discount Oakley Sunglasses come off, with the thumb and index finger a little harder eyes, nose pressed at two, until you feel a slight fever so far, you can also do eye exercises, is also good for eyesight, do both. Use eye cream. If you are very anxious to remove glasses indentation, it is recommended to use some eye cream twice daily and gently smudge, you can tighten the skin, and the indentation disappears as soon as possible. Deposited with hot water, pour some hot water every night, take the eye with a hot towel at two indentation, so here's the blood circulation open and help eliminate creasing. Or not to wear contact lenses for too long, easy to wear contact lenses because the eyes, causing damage to the eyes, or to be dominated by glasses.
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