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These are the most prescribed
lenses, as they are the ones that are used to compensate all those patients
that Don’t have eyestrainorlong-sightedness, so they don’t need a
different prescription in order to see at a close distance. They have the same prescription
in all lenses. The negative spherical monofocal lens compensate myopia, the
positive compensate farsightedness and the ones that have cylindrical
monofocus, compensate astigmatism.
From 40 years old onwards,
your eye might lose accommodativepower
meaning that the zoom that we use for near distances starts to fail as the lens
of the crystalline loses elasticity. This is a totally normal process and
degenerative and what it produces is bad close vision so as to read, write, sew
and later, you can even start seeing the pc screen incorrectly.
Progressive lens have
different prescription depending on the visión zone. The superior part is
thought as to be for long distances (optically speaking from 3 to 4 meters
towards the front) on sight primary position. The inferior part of the lens is
thought as to be perfect for near distances (between 40 and 10cm). And between the
far zone and the near zone the prescription varies, and it is thought for the
intermediate zone like the pc screen or the car dashboard. In order to put all
these different prescriptions into one single lens we must polish the lenses
with a characteristic bent producing a series of lateral aberrations. These
aberrations produce a slightly blurred vision on the lateral part in comparison
with the center part.
Depending on the type of
progressive lens and on the used technology for its fabrication, there will be
more or less lateral aberration. The lower lateral aberration, the more field
of view. Therefore, the more quality, the more comfort and bigger field of
We dive the progressive lenses
in three scales, depending on its visual field.
· Standard Progressive
· Outpost Progressive
· Premium Progressive
very easy to get to know your prescription with a recipe. Normally, if you go
to the optic or the ophtalmologist he will give you your prescription in a
paper that we call Optical Prescription or recipe.
recipe, you will firstly see your right eye prescription and then normally, the
Astigmatism / Cylinder
have astigmatism, it will appear as CIL, Cylinder on the recipe, and then eje, axis. This astigmatism is always
associated to an axis, therefore there will always appear a number with a sign
like "+"or "-" with two decimal numbers next to the axis, that will be a
number between 0º and 180º (it normally goes from 5 to 5) (ej: +2.00 cil to
90º, or -2.00 cil to 180º). On the recipe, a circle or a semi circle might also
appear, where the professional optic must indicate the axis with a line that
goes from the centre of the circle to the axis value.
addition is what we must add to the farsightedness prescription to see at close
distances, as to read, sew, write and everything that has to do with a 30 to 40
cm distance towards the eyes.
patients that already have eyestrain or presbyopia (normally on 40 year old patients
or older), another header will appear on the recipe saying near, for near, esf cerca, VP. We must add this value or header if
you want to make a progressive lens or for only reading glasses.
to put the necessary close or near prescription to a progressive, we must know
which is the Addition (Add). This
value indicates us the power that we must add to your far sphere so that you
are able to see well in close distances. It is a positive value "+" and worth usually fluctuates between +0,75 and +3.00Dp, increasing 0,25 each time depending
on the age. If it comes as Add, we will insert it on the Addition header for
the progressive prescription. If it comes as Near or Close Vision or VP Near we
must calculate it´s, as follows. To calculate your addition we must deduct (take
off) the long distance prescription from the close or near distance one.
have farsightedness we must deduct from the near sight prescription as follows:
+3.00) - ( VL+1.00), Add Addition will be +2.00 (3-1)
have myopia we must do an algebraic subtraction, counting with the
symbols "+" and "-".
+2.00) - (VL -1.00) Add Addition will be +3.00 (+2.00 +1.00)
-3.00) - (VP-5.00) Add Addition will be +2.00 (-3.00 + 5.00).
easy, we only need to know the difference between close and far distance prescriptions.
if you have any query to decipher your prescription and don´t know how to add
it into our order page, our optometrists will be longing to speak to you, you
can call +44 20 3695 2334 (From 9 a.m to 6 p.m) or send us an email to
Inter Pupillary Distance
pupillary distance between the center of your pupil and the center of your
nasal arch is called the monocular pupillary. It will be in millimeters. It is a
different value for the left and right eye. It is estimated between the 25 and
the 40 mm, but the average value among adults is 30 mm for women and 32 for
men. Sometimes we might get the Inter pupillary distance, the distance between
both pupils, where the average value is between 60 and 64mm.
times in which this value does not appear on the recipe, although if it comes
it will appear under the DIP epigraph. If in your recipe we have included the
automatic prescription that comes out of theautorefractometer then the inter pupil
distance should appear like DIP or DP on top or
beneath all the other measures of the machine.
If you do
not have that data, we can calculate
through a photo. If
you want that option follow these
steps, it is very simple:
done, send the photo to
email@example.com giving us your order number and we will mount the glasses with
the correct pupillary
The standard organic lens
called CR-39 of 1.5 refraction index are the normal lens, light and resistant
to bangs or blows. It is recommended for low prescriptions, as in high or
medium prescriptions you might notice the thickness of the edge of your lens.
We recommend it for low prescriptions
up to +/- 2.00 Dp.
It is not suitable for rimless
glasses as they might brake due to the teller’s pressure produced.
The organic lens of 1.6
refraction index can be up to 15 to 20% more slimmer than the standard. It is
also lighter and more resistant to blows. They are more esthetic lens for
We recommend, for medium prescriptions
+/- 2.00 Dp a +/- 4.00 Dp.
It accepts Rimless Frame (Montura al aire)
1.67 Super Reduced
Anti-glare Organic Lens:
The organic lens of 1.6
refraction index can be a 35% thinner lens tan the standard. It is lighter and
more resistant to blows, thus gaining more comfortable glasses.
It’s geometry is aspheric,
which means that for the same prescription, it will have less curvature than
the standard one, so being thinner at the edge (in positive lenses), it takes away
more optical aberrations like the ‘barrel’ effect of positive lenses or the
‘corsé’ on the negative, that makes the eye’s size more real (the eye will be
less bigger than with positive spherical lenses and less smaller in negative spherical lenses.)
It comes with an anti-glare
treatment that takes away artificial glow highlights.
We recommend it for medium-high
prescriptions of +/- 4.00 Dp a +/- 6.00 Dp.
1.74 Ultra Reduced Anti-glare
The organic lens of 1.74
refraction index is one of the thinnest of the market, being up to 45-50%
slimmer than the standard. It is the slimmest and the lightest, being ideal for
high prescriptions, as we obtain one less thickness level on the edge.
It has an aspherical geometry,
so that for the same prescription you get less curvature than the spherical
one, making it even thinner on the edge (in positive lenses), takes away more
optical aberrations like the ‘barrel’ effect of positive lenses or the corsé in
negative, and makes the size of the eye more similar to the real one (The eye
ends up less bigger than in positive spherical lenses or less little in
negative spherical lenses).
It has an anti-glare default treatment
that takes away all the glows and artificial light reflections.
We recommend them for very
high-high prescriptions of more than +/- 6.00 Dp.
It accepts Rimless Frame
organic lenses are made of CR-39 of maximum quality. They are light and very
resistant to blows. We recommend to clean it while humid and you should dry it
with the lenses’ cloth that we’ll send you or with a very soft cloth to avoid
It is a
treatment that takes away all the reflections produced by artificial lights
(screens, lamps, pcs, car lights…). It is on both sides of the lens so it
erases all reflections both in front and rear. It has a transmittance that lets
the light pass on to a 99,2% of the lens. They give you more visual comfort, so
that you won’t get tired so easily when you are on the computer screen,
studying, in the office, etc… They are more aesthetic given that your eyes will
be more seen than the reflections. It comes with a STRONG AND HARDENED
treatment so that it won’t scratch so easily and they will also be easier to
clean than the standard ones.
CLEANING & NATURAL ANTI-GLARE ORGANIC LENS
from the anti-glare and the hardened effect, it has a treatment that repels
dust and water, so it won’t get dirty that easily and even more, they are
easier to clean.
angle of water and dirt with
a covered area of anti-glare of
easy cleaning, is better with normal
lens, ie, it leans less on the
surface, making it more difficult
for dirt to stay on it, and if it stays after all, it is easier to remove from there,
as it has little grip.
treatment in addition to the benefits of the easy to clean anti-reflecting
lenses, has a filter that protects against radiation producing electronic
devices such as computer screens, tablets and mobile phones, the so-called
"blue light". This type of light produces a visual fatigue, a feeling
of tiredness in the eyes when roast many hours ahead of such devices. Also is
harmful to them eyes tissues because its toxicity is accumulates. Energy Blue
Treatment, in addition to filter the light, also blocks infrared radiation,
which facilitates the formation of wrinkles on the skin and a factor for the
onset of cataracts.
your eyes and reduces the tiredness caused by those digital devices. They
filter the blue light that detach the screens and help to reduce the eye
fatigue and red eyes keeping them relaxed and comfortable. They have an enhancer that helps the eye to perform the accommodation, reducing visual fatigue… This treatment does not include anti-glare (anti-reflective).
This is a treatment that applies to
sunglasses lenses in order to eliminate part of the solar glare reflected on
certain surfaces such as water, snow, sand or asphalt. It has the same
protection against UV rays, but also eliminates annoying reflections getting a
more comfortable vision without glare produced by natural light.
The lenses are transparent
without any kind of color.
COLOR: Gray, Green and Brown.
They are the tinted lenses
that are used to graduate sunglasses. They have an absorption percentage of
85%, ie, 85% of the visible light of the sun will no trespass the lens. They
are ideal for sunglasses. They have an UV filter that avoids 100% of the
ultraviolet rays that come down to the surface.
You can’t drive with these
lenses at night.
. Gray: It alters other colors smoothly.
Ideal for irregular light atmospheres.
. Brown: It alters other colors smoothly. Ideal
for outside sports.
. Green: It alters colors a lot. Ideal for
nautical sports and snow.
lenses are those that vary their color grade
depending on the luminosity intensity. Therefore in a very sunny day, they
become dark (absorbing an 85% of luminosity) and when it comes to an interior
room or at night, they become practically transparent (between a 6 to 7% of
Photochromic cells are
activated by ultraviolet light, so they are quickly activated on
the street, almost as sunglasses,
and when you walk inside a room, they rinse as a regular graduated