I’m just a bit confused. I’ve found post about glasses perscriptions with names but I’ve just got one with purely numbers and sights l. Reads
+1.75 -2.25 x 179
+3.75 -3.00 x 173
How am I supposed to read and understand this?
In: 2
The numbers are in two pairs of three values. The first three are for your right eye and the second three are for your left.
The first number is your “spherical correction”, which deals with how close/far things are when you can make them look sharp and clear. A positive number means you are struggling to see things that are close, and a negative number means you are struggling to see things far away. A big number is a big correction and a small number is a small correction.
The second number is your “cylindrical correction” and it means the amount your eye might be too wide or tall. The positive and negatives here don’t matter so much; we can convert them back and forth because saying an eye is “too wide” is the same as saying it is “not tall enough”. A bigger number here means your eye is more like an American football than a basketball.
The third number is the “axis”, which means the direction that your eye is too wide or too tall in. This number goes from 0 to 180, with 0 meaning left-to-right and 90 meaning top-to-bottom. 180 degrees goes all the way around to left-to-right again.
The fourth, fifth, and sixth mean the same thing but for your left eye.
The numbers in your prescription therefore mean the following things
Your right eye is a bit longsighted (+1.75) and is stretched a bit (-2.25). The direction of the stretch is close to left-to-right (x179).
Your left eye is quite a bit longsighted (+3.75) and is stretched quite a bit (-3.00), also close to left-to-right (x173).
All these numbers are pretty normal, especially if you are 40 years of age or older.
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