Davis Optical Expers (Seattle, WA 98105-5808)

• How to choose an reliable store when I purchase eyeglasses online

  You may goggle "cheap eyeglasses"online,then you will see many online stores, usually the result ranking in the front are the most popular and famous one, you can also go to their facebook wall, twitter or their website to see customers review, you may learn a lot from there. Compare the price/ quality and the styles of all products. Ask your friends who have purchased eyeglasses online before, the recommendation from them will be much appreciated. Hope you can have a nice purchasing experience.

• How to read glasses size?

  50 means the width of the lens, 18 means the distance of the bridge, 140 means the length of the temple or the arm.

• Are firmoo glasses really free?

  Definitely yes. I appreciate their free offer very much. Im disabled and i lived single with very very low income. Firmoo rocks!!!!!!!!!!!!

• why do sunglasses give me a headache?

  Make sure whether your sunglasses have prescription. If they do have, then your headache may due to the wrong prescription.Then you should take your sunglasses to your eye doctor to have a check and let them remake for you. If your sunglasses have right prescription, then your headache may be caused by the coatings on the lenses. If your sunglasses cannot block 100% UV rays, then you will get headache when you are exposed to the bright sunshine.

• What size of lens should I choose for progressive glasses?

  Unlike with bifocals and trifocals, which really require large-size frames, the use of progressive lenses allows many eyeglass wearers to choose smaller frames; the technology involved in progressive lenses already makes it possible to have enough space for the glasses' nearer area for reading and the farther area for looking at a distance. Although larger frames generally allow for better optical coverage, the person preferring a smaller frame can be accommodated; the eye care professional can measure the frame and lenses to determine the kind of progressive lens that will work best in the specific smaller frame preferred.

• What are computer glasses?

  Computer glasses are prescription glasses that are designed to wear when doing computer work. They allow you to focus your eyes on a computer screen, which is farther away than reading material is normally
  held. There are other activities such as for example playing piano(piano glasses) or shooting (shooting glasses) that also require a similar custom fitting. These specialty glasses called "task-specific"
  are designed to meet the visual needs of the activity. General purpose bifocals are not designed for computer work. They force the wearer to tilt the head back in order to focus on the screen while looking through the lower segment of the bifocal lenses. Such a forced
  position can cause neck and shoulder pain and it can also cause arm and
  low back pain. Depending on the individual's vision and type of
  work, there are several options while selecting computer-specific
  glasses, such as Monofocal ,Bifocal ,Trifocal and Progressive Addition Lenses (PAL) Source: http://www.ccohs.ca/oshanswers/ergonomics/office/computer_glasses.html

• How to get free prescription glasses?

  I believe that there is no such thing as free lunch.Even you can get them for free,they will not last long.So you can go for some discounted prescription glasses in your local area or online stores.

• What are spring hinges glasses?

  The regular glasses need your both hands to put them on. Sometimes your left hand is occupied by other stuff, and then you will feel troublesome because you must use both hands to put on your glasses. However, the spring hinges glasses can help you put your glasses on with one hand. The springs embedded at the meeting point of the frames and temples will push the temples right at place, erect and firm, at the lightest motion you give them. Such convenience is only shadowed by their enormous durability.

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