Cylinder change?

I (28f) got my new prescription yesterday after 2-3 years and the cylinder values for my right eye used to be -2.25 and now it's -1.50. Does this mean my astigmatism/eye sight is improving in that eye/is that even possible? Or does that mean it's getting worse? Sorry if these are questions you can't answer, I'm pretty ignorant about what the values mean, even after googling them.

submitted by /u/aboxofsharp0bjects
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