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Air Titanium Eyeglass Frame Colors
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Understanding The Eyeglass Prescription
You’ve recently had your eyes examined and you are ready for some new prescription eyeglasses. You were handed a piece of paper, with some numbers on it, as you left your examination. You are wondering what do those numbers mean?
Your eyeglass prescription consists of lens powers needed to give you the best vision possible.
What the Numbers Mean
Your prescription will consist of numbers that represent the lens powers needed to correct the vision in each of your eyes. A typical eyeglass prescription will look something like this:
OD -3.25 -1.25 x 175
OS -4.25 -1.00 x 165
Add +2.25
The first line of an eyeglass prescription is, by convention, for the right eye. It is sometimes noted as O.D. The left eye or O.S. is the second line of your eyeglass prescription. The first column number is the spherical power for each eye. It is indicated by numbers known as diopters usually in .25 steps. Occasionally you may see .12 steps but this is rare. Sphere powers are identified by either a plus or minus sign. This is a very important to know because a minus (-) power corrects the vision problem nearsightedness and a plus (+) power corrects farsightedness. So if the sphere power of your prescription is a negative number you are nearsighted and if the sphere power is a positive number than you are farsighted. The larger the number the greater the degree of nearsightedness or farsightedness.
The second column of your eyeglass prescription is called the cylinder power. If there is a number in this column that means that you have astigmatism. The same plus and minus number conventions as the sphere power apply to the cylinder of your prescription. There may be no number in this column or there may be a sph. or sphere written in this column. In either case there is no power so you have no astigmatism. It is possible to have astigmatism in one eye and not your other.
The last column of your prescription is the axis. This represents the direction or location of your cylinder power. If there is no cylinder power in your eyeglass prescription. than it cannot and will not have an axis number indicated. If you have a cylinder power then it will have an axis. This is a measurement in degrees from 0 to 180. Only half of the 360 degree circle are used because 90 and 270 would be identical.
So if you know your sphere power cylinder power, and axis for each eye, you know if you are nearsighted, farsighted, or have if you have an astigmatism.
Occasionally a prescription may have a prism power. This is usually for people who suffer from diplopia (double vision). It may be a fraction or a decimal such as 1/2 or .75. If there is a prism power it must also have a direction or a base. This is either up, down, in, or out. Prism is relatively rare in occurrence.
A multi focal prescription such as bifocal, trifocal, or progressive lens will also have an add power. This power is in addition to the sphere, cylinder, and axis and is indicated on the next line of the prescription. It is always a positive number such as +1.25 or +2.25. This is the amount of extra focusing power to enable reading or near vision.
The last number need to complete an eyeglass prescription and fabricate a new pair of eyeglasses is the pupillary distance otherwise know as known as “PD”. It is the distance, in millimeters, between the centers of the pupils in your eyes, for example 62. This is further described as distance PD and near PD such as 63/60. Distance PD is when you are looking straight ahead and near PD is when you are looking close. When you look close your eyes turn in, therefore the near PD will always be less than your distance PD. Each eye can also be measured individually. This is called a monocular PD. It would be expressed as 31/30 or 31/31 depending on your symmetry and facial feature. An adult PD varies little with time.
NOTE: A written eyeglass prescription may or may not contain a PD measurement.
Make sure your prescription is current by having your eyes examined regularly to insure you are seeing as clearly as possible. Eyes do change gradually over time and it may be so gradual that you do not notice. Routine eye examinations also screen for the silent stealers of sight such as glaucoma and cataracts.
Did you know that you have a legal right to obtain your eyeglass prescription from your eyecare professional? That’s right. Request your prescription at the time of your eye examination or request it later, it’s your right.
Many wise consumers are realizing significant savings by ordering their new eyeglasses online from Theyedoctor.com
Your Professional Online Optical
Best Eyeglasses Lenses for Children
When choosing eyeglass lenses for children, it is important to think of the safety and protection afforded by the lenses to younger eyes. The most important property of a lens material is regards to lens safety is the resistance of the lens material to shattering.
Glass lenses have the least resistance to shattering upon impact, and when they do shatter they break into extremely sharp shards. Glass lenses in eyeglasses should never be worn by children.
Lenses made of polycarbonate are much more shatter resistant than glass or regular plastic lenses. They are not expensive either making polycarbonate lenses the best choice lens material for children.
Anyone wearing lenses during sporting activities should also wear lenses made of the safer polycarbonate material.
Theyedoctor.com has polycarbonate lenses in all prescriptions at very good prices.
Name Brand Eyeglasses Online
Custom Made Sunglasses to Your Prescription
Eyeglasses and sunglasses have been and will continue to be an ultimate accessory for fashion consumers.The brand name eyeglasses manufacturers bring new designs to market each year matching the unique tastes of individual fashion consumers. There are thousands of eyeglass frame choices ranging from fashion forward ornate choices to casual comfortable and light weight eyeglasses. There are styles for motorcycling -Harley Davidson Eyewear- and there are preppy eyeglass styles.
There are thousands great name brand eyeglasses and sunglasses to be found online for your own unique fashion philosophy, all at great prices, when you visit Theyedoctor.com
Why are Safety Glasses Important?
Why Safety Eyeglasses?
Vision loss would be terrible thing to happen to anyone. Eyeglasses can prevent many of the accidents that can cause loss of vision.
Who is getting eye injuries?
At work construction workers have the highest rate of eye injuries, with electricians, plumbers, and pipe fitters having the highest rate.
How are injuries happening?
Splashing accidents.
Liquids or gases under pressure
Sparks from electricity.
Nails
Specs of Solder
Grinding dust
Glass
What is getting into your eyes?
Solvent splashes
Liquids or gases under PRESSURE
Electrical Sparks
Nails
Solder Specks
Grinding Dust
Glass
Bits of wire
Welding Fumes
WHEN and HOW do eye injuries occur?
Eye injuries can occur anytime anywhere, but if you work overhead, weld, use power tools, work on live circuits, or work with anything under pressure, you are especially at risk.
Electricians working over head get eye injuries when they work with wires, conduits, light units, drop ceiling. Plumbers typically work overhead cutting pipes, removing pipes, welding soldering, grinding, fitting and installing hangers.
Working with power tools can create lots of dust for you and the people around you. In a confined space power tools are even more dangerous. Simply working next to someone sawing, grinding or welding makes you more susceptible to eye injury.
What’s the answer?
Don’t forget to wear your safety glasses. It takes but a split second to cause injury your eye, it will take a lot more time to heal.
Theyedoctor.com Finding Your Eyeglass Frame Size
There is no one specific frame size that is the only frame size that you could wear. Some people prefer to wear larger frames, think of Jackie O. with her famous frame styles. Some prefer smaller frame sizes.
The frame size that you are currently wearing will be marked on the frames. This size gives you a good indication of a suitable frame size for yourself.
Ever read the size numbers inside a frame temple and wonder what they mean? Using 48-19-140 as an example:
Frames have standardized size measurements to identify them: The first number, 48, represents the width of each lens in millimeters. The second number, 19 again in millimeters, is the bridge size, which also can be called the distance between lenses (DBL). The third number, 140, is the temple length (temples are the parts that hook over the ears).
Each person may prefer a different size, shape, or style frame depnding on their individual style and activities, so there is no set of numbers that would apply to one person for all frames. Each frame must be considered individually.
Our Customers Say it Best
We received this unsolicited testimonial at Theyedoctor.com the other day and want to share it with you. Thanks Patti you made our day.
I LOVE THEM! I cannot tell you how much I love my glasses! Not only do they look good but the prices was right! I had seen the glasses at a local eyeglass store and had to tell myself, “Not now…too much.” I began searching the internet for alternatives and I found you. I saved $234.00 buying the glasses through you. The glasses are fantastic, but your service was out of this world! I have to admit this was a risky venture for me – buying glasses via the internet. Your service was beyond what I expected…I even had a question and called the 800 number. Honestly, I thought I would be talking to a recording, but it was a REAL PERSON! She was so helpful, and reassured me that everything would be fine. Prior to getting my glasses I was talking about you, but in the last three hours (since I got my glasses in the mail) I have called my family and sent an e-mail with your websire and, of course, a picture of me in spectacular spectacles!
Thanks again…now I can’t wait to buy glasses again! I may have to get another pair..for fun since I can get two for the price of one!!
Extremely Happy Customer in Sioux Falls, South Dakota- Patti W-G
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Theyedoctor.com is a leading online eyeglasses web site, serving thousands of your friends and neighbors eye wear needs online since 1997.
