Assessing your PD:
This measurement is the distance between the centre of your pupils that is measured in millimetres.
Opticians do not tend to give out this measurement as it encourages patients to buy their spectacles from them whereas you can buy cheap spectacles online or designer glasses at a fraction of the price online. It is ordinarily recorded as a single measure such as 60 (60mm) but can also be registered as R 29 L 31. When written like this it is the individual distance from you right and left pupils to the centre of your nose.
When Varifocals, High Prescriptions or Prisms are ordered the measurement is commonly split individually. On the whole, if you have a single vision prescription, it will be written down as one value.
If you do not know this measurement and don’t want to measure it yourself then most online opticians will make your PD the national average (63) for men and (60) for women.
Ask a family member or friend to physically measure your PD:
This is the easiest method for measuring you PD. Get your friend to sit directly opposite you and at the same height as you and ask them to put a ruler against your forehead and just above your eyes.
Next ask your friend to close their right eye and you then look directly into their left eye. Ask your mate to slide the ruler to bring about the zero value is in the center of your right pupil and to hold the ruler very secure across your forehead. So, now look straight into your friends right eye with them closing their left eye.
Your associate will then take off the measurement to the centre of your left pupil. And that’s it! It really is that easy! Please see the diagram below to help you further.
Use your current spectacles to measure your PD with the aid of an assistant:
Do wear the glasses before hand and ensure that they fit nicely. Ask your assistant to stand opposite you and verify on your lenses the position of your pupils with a non permanent marker.
There should be two lines visible in your line of sight, whilst you are viewing through your specs. Merely, remove your sunglasses and measure the distance between the two markings. And that is it! If the measurement reads 6cm the PD distance will be 60. If the measurement is 6.3cm then your PD will be 63.
For Varifocal Measurement simply measure from your right eye to the middle of your nose and then from the middle of your nose to your left eye to obtain the required individual readings for your right eye and left eye. If you aren’t buying sunglasses with prescription lenses in then don’t worry about what’s in this article.
Filed under Health by on Jul 26th, 2009. 
People who grow tired of wearing glasses or believe they look better without them may turn to corrective surgery using laser technology to restore their visual acuity. Before heading out to an all-night laser surgical center people need to get all the laser eye surgery facts they can find to insure they are making the right choice. Not everyone will make a good candidate for lasik surgery and by perusing the available laser eye surgery facts people can quickly determine if they qualify. They can then read about what to expect to determine if they want to follow through with the operation.
Pointing to the success rate of the procedure there are several laser eye surgery facts. Learning what can be expected before the surgery, during the surgery and the appropriate follow up care is an important part of the decision-making process and the laser eye surgery facts can help provide that information as well. If it is being done strictly for cosmetic purposes most insurance policies do not cover the surgery.
Those who wear contacts might have to wait while their eyes return to their normal shape before having the surgery performed, meaning they will have to wear glasses until the day of the operation. They may also have to wear glasses to correct the vision in the one eye that is not corrected according to the available laser eye surgery facts.
Success Rates Are In Potential Patients’ Favor
Despite the risks associated with laser surgery, the lasik eye surgery statistics are in favor of the patients as there are many more success stories than there are of surgeries that go horribly wrong. While the risk factors are included in the laser eye surgery facts, the experience and knowledge of the surgeon performing the operation will greatly increase the odds of success.
The patient will be under local anesthetic only with a local sedative for the eye on which the operation is being performed. The patient will go home the same day to begin the healing process in most cases and with the appropriate follow up care, their recovery ends with much better vision then before the operation.
Being able to afford the operational costs may seem daunting for some. The laser eye surgery facts point out that it can be a significant cost savings over the years following the surgery when the cost of eye exams and glasses over their lifetime is calculated.
Thiking about getting laser eye surgery? Check out this awesome no cost article, Laser Eye Surgery Facts. To browse more articles on laser eye surgery visit, http://www.lasereyesurgery.jsgenterprises.com.
Filed under Health by on Dec 30th, 2008.