"I'm an 18-year-old male, and I recently had my eyesight checked. The results showed a spherical power of 1.25 in both eyes, with a cylinder power of 1.50 in the left eye and 0.50 in the right eye, both with an axis of 6. Before this, I hadn't had my eyes tested in two years, and I was previously wearing glasses with a spherical power of 0.00 and a cylinder power of 2.50 in both eyes, with an axis of 180 degrees. I'm confused about why my prescription has changed. I expected it to increase, but it seems to have decreased. What is that
Uncorrected astigmatism is transient, meaning it easily changes for the better, worse, or axis.
Your astigmatism improved on its own but wearing glasses that corrected for it has caused myopia of -1.25 in both eyes.