FAQ's - VisionforSport
Q: What does my prescription mean?
A: Your written prescription from your optician is a record of the visual correction that your eyesight requires. This will be noted with a series of numbers preceded by a plus (+) or minus (-) sign.
Minus (-) means you are short sighted (Myopic) i.e. you can see close up but objects viewed in the distance appear blurred. And plus (+) means you are long sighted (Hyperopic) i.e. objects viewed close up may be out of focus.
Astigmatism: This is where the curvature of the front surface of the eye is not perfectly round. Your vision will be blurred at most distances if the astigmatism is significant. A correction for astigmatism will be recorded in the 'Cylinder' and 'Axis' part of the prescription. Axis is simply an angle, at which the Cylindrical power of your lens sits. This angle is measured in degrees (1 degree to 180 degrees)
Presbyopia: This is where the lens inside your eyes loses its flexibility so that focusing on objects close up becomes difficult. As part of natural ageing process of the eye, this usually affects people in their mid 40s. A correction for presbyopia will be recorded in the 'Near' and 'Intermediate' part of the prescription.
It is common to have no values for any one of these, in which case you might see the letters “PL” or “plano” which means zero.
Q: What is my ‘pupil distance measurement’ (PD)?
A: Sometimes abbreviated to ‘PD’, it is the horizontal measurement between your pupil centres. We need this measurement so that the optical centre of the lens coincides with your pupils, ensuring maximum clarity of vision. Most opticians do not write this information on your prescription as they are not obliged to. However, they do keep your PD on file so all you have to do is call and ask! You can even measure it yourself! Showmehow . If you visit us at a show we will take an accurate measurement at the time of ordering.
Q: Where can I get my prescription from?
A: In the UK, you can get it from your registered optician at any time. In accordance with the 1989 Opticians Act, your completed prescription form should be presented to you after your eye test. If not, just ask for one; you are entitled to it. You are under no obligation to purchase any frames or complete glasses from the optician. Under English Law you can buy your glasses from anywhere that you chose.
Q: Is there any legal age for buying prescription glasses online?
A: Yes, you have to be 16 years old or over and also if you supply us your prescription, it must be issued by a registered optician within the last two years.
Q: What sports glasses are right for me?
A: In general, there is no right or wrong type of glasses although some sports, such as shooting and fishing, will require a higher level of protection than others. VisionforSport offer two main types of glasses – direct glazed and insert styles.
Direct glazed is the technical name for a ‘normal’ pair of sunglasses, where the prescription lenses are fitted directly into the frame. They often come in an ergonomic wraparound design, which allows for a slightly wider field of vision. Direct-glazed lenses are not interchangeable, so choosing the right lens is important.
Insert styles are glasses that have an optical insert, made to your prescription, that clips to the nose bridge. The the benefit of an optical insert is that it allows for contemporary frame styles that are just not possible with direct-glazed glasses. VisionforSport offer a range of insert styles that come as part of a sports pack which includes a range of interchangeable coloured polycarbonate shields (suitable for different light conditions). The Swift and Switch sports packs both feature a hi-definition polarised shield to accompany the standard mirrored, low light and clear/protective shields in the pack. Or chose the eye-catching Max frame with light-reactive photochromic lenses.
Q: Should I choose single vision, bifocal or varifocal lenses?
A: Both bifocal and varifocal lenses should only really be needed if you require distance and near vision simultaneously. However, if your everyday glasses are bifocal or varifocal, you may wish to continue this through to your sports glasses.
Q: What are the advantages of polarised lenses?
A: Your eyes work hard even under normal condition, moving and adjusting to receive thousands of visual impressions each second. Under a tougher condition when your eyes encounter glare like sunlight, your eyes work even harder. The pupils contract, your eyelids close to narrow slits and the end result is you feeling fatigued. In basic terms, polarised lenses cut out the horizontal glare meaning you don’t have to squint and you get maximum visual comfort.
We have a wide range of polarised lenses, brown being the best all-rounder. The other colours are much more specialist, please see or lens lab section for more details.
Q: What is the usual delivery time on my glasses?
A: Up to 10 working days from time of order for insert options- but usually they are done in less time and despatched from our UK lab! Specialist direct glaze jobs may take up to 3 weeks.
For more information Contact us.