Eagle Diopter Lens

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To be worn in the Eagle Prescription Goggles, lens' are available in half-step increments from -1.5 to -6.0 to match a range of prescriptions. Lenses are sold individually and are reversible to fit either left or right goggle eye socket.

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Eagle Lens Guide

A typical prescription is written:


  sphere cylinder axis
R -3.00 -0.5 x180
L -3.50 -1.00 x180


To work out which lenses you need, you’ll need to look at the first 2 aspects of your prescription.


sphere - is the main part of your prescription and will have a ‘–’ for short-sightedness or a ‘+’ for long-sightedness. If you have a ‘+’ then unfortunately our lenses will not work for you


cylinder - refers to the amount of astigmatism you have.


The diopter you order should be based on the amount of short-sightedness you have.


Our optical lenses don’t correct astigmatism but if it is less than 2.00 diopters and not the majority of correction, add half of this number to work out your power (examples below).


Here are some examples of how to work out the correct power for you:

sphere cylinder axis recommended lens
-3.00 -1.00 x90 (-3.00 plus -0.50) = -3.50
-3.00 +1.00 x90 (-3.00 plus +0.50) = -2.50


Our lenses come in 0.5 steps from -0.5 to -6.0 so you may have to select the nearest power. It’s better to under-correct than over-correct. 

If you need any assistance please contact us with your prescription and we’ll do our best to help