I’d like some prescription goggles and being an occasional/rubbish swimmer, want to start off with some ‘off the shelf’ ones as the cheapest (bulky and very bright) prescription ones are £50 and the rest start at £90.
I am short sighted with astigmatism, but basic goggles do not correct for astigmatism…I’ve seen a couple of comments else wear that say you should add half the ‘cylinder’ (astigmatism) to the sphere to make a basic/crude adjustment for the astigmatism, is that correct?
The example stated -6.25/-5.50X180 which would give a Goggle of -9, but I’m confused about the 180, is that the Axis?
My prescription is;
SPH CYL AXIS BVD
-3.00 -1.75 100.00 11.00
-3.25 -2.25 20.0
Going by the advice I reckon I could just get goggles with -4.00 in both eyes, or 4.0 and 4.5? Or does the 100 and 20 mean the add half is wrong?!
Found some basic Goggles that are only £10 so its not the end of the world, but nice to get it right first time!