Download CONSULTATION PRESCRIPTION CHECK This check is done only

CONSULTATION
PRESCRIPTION CHECK
This check is done only to know your spectacle errors. To know the health of your eye (cornea /
retina etc.) you need an eye appointment with our eye doctor which involves a dilated eye
examination.
The following eye test assessments are carried out by our optometrists as required:
At Shroff Eye our fully trained, professional optometrists are on hand to help you with all your
optical needs. With access to the latest and most advanced technology, we can provide you
with the most comprehensive eye test possible.
Your Prescription Check includes:
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Detailed History and Lifestyle Evaluation: A brief discussion to provide the optometrist
with information concerning your health and lifestyle background.
A measurement of your spectacle power is taken to determine your current prescription
strength.
Tonometry: Used to measure your eye pressure (Intra Ocular Pressure- IOP). It is a key
indicator in diagnosing the eye condition glaucoma.
Visual Acuity Testing: Measures the eye's ability to see objects at near and far
distances. The tests usually involve reading letters or looking at symbols of different
sizes on an eye chart. Your uncorrected visual acuity (UCVA) is what you see without
glasses or contact lenses while your best corrected visual acuity (BCVA) is what you see
with the optimum spectacle correction in place.
Refraction: The optometrist conducts the examination to determine your current
prescription and compares this to the readings and previous prescription details to
ensure stability.
A printed copy of your current refraction is handed to you at the end of your appointment
For an explanation of your eye prescription click here
(Tania- the next page is content when you click)
At the end of your consultation you will be given a prescription which will look something like the
example below.
(put sample refraction card)
What does the prescription mean?
The "sph" box means sphere which represents the amount of long or short sight that is present.
This could be a ‘minus’ for myopia or a ‘plus’ for hyperopia.
The "cyl" box for cylinder represents the amount of astigmatism that is present. The cylinder
may be plus or minus regardless of whether the sphere is positive or negative.
The "axis" box represents the orientation of the cylinder (from 0-180 degrees) and is the angle
at which the lens is set into the frame.
The "add” box is the amount of correction that must be added to your prescription for reading
glasses.
A prescription is usually valid for two years, but your optometrist may recommend that
you have your eyes tested more frequently than this, depending on your particular
circumstances.
Remember, an eye test does not only check that your prescription is right for you; it is
also a check on the health of your eyes and visual system. Many eye diseases can go
unnoticed until it is too late to treat them effectively so it is important to have regular eye
tests even if you feel you can still see well.
What do your eye test results mean?
The "sph" box means sphere which represents the amount of long or short sight that is
present. The larger the number the stronger the lens required, and therefore the thicker
the spectacle lens will be. Plus lenses are used to correct long sight and minus lenses
are used to correct short sight.
The "cyl" box for cylinder represents the amount of astigmatism that is present.
Astigmatism is caused when the eye is not completely spherical (like a football), its
shaped more like a rugby ball. This causes the vision to be distorted for both distance
and near objects. The cylinder may be plus or minus regardless of whether the sphere
is positive or negative.
The "axis" box represents the orientation of the cylinder (from 0-180 degrees) and is the
angle at which the lens is set into the frame.
The "prism" is the correction needed (if any) to align the eyes, so that they are looking
straight and working well together. A prism is a lens that bends the path of light without
altering its focus.
The "add" box is the amount of correction that must be added to your prescription.