save early and often |
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| Line 17: | Line 17: | ||
OS: -2 sphere, -.75 cylinder, axis 15 | OS: -2 sphere, -.75 cylinder, axis 15 | ||
Note: Increase in cylinder correlates with when Darin started wearing a bike helmet mirror. | Note: Increase in cylinder correlates with when Darin started wearing a bike helmet mirror. Use of helmet mirror continues until present day [as of January 2022]. | ||
==October 2013== | ==October 2013== | ||
Prescription | Prescription Safety Glasses | ||
OD: -4.25 sphere | OD: -4.25 sphere | ||
OS: -2 sphere, -.75 cylinder, axis 15 | OS: -2 sphere, -.75 cylinder, axis 15 | ||
==July 2018== | |||
Prescription | |||
==July | OD: -3.25 sphere, -.75 cylinder, axis 155 | ||
OS: -1.5 sphere, -1.5 cylinder, axis 33 | |||
==July 2021== | |||
Prescription | |||
OD: -3.25 sphere, -.75 cylinder, axis 142 | |||
OS: -1.75 sphere, -1.75 cylinder, axis 28 | |||
PD 59.5 | |||
==October 2021== | |||
Differential (close-up) | |||
OD: -1.5 sphere, -.75 cylinder, axis 142 | |||
OS: no sphere, -1.75 cylinder, axis 28 | |||
PD 59 | |||
**Note how weird these glasses are. These glasses are an edge case that isn't covered in the astigmatism guide.** | |||
==Future Glasses== | |||
===Equalizing sphere=== | |||
Normalized | |||
OD: -3 sphere, -.75 cylinder, axis 142 | |||
OS: -1.75 sphere, -1.75 cylinder, axis 28 | |||
Differential (close-up) | |||
OD: -1.25 sphere, -.75 cylinder, axis 142 | |||
OS: no sphere, -1.75 cylinder, axis 28 | |||
===Converting cylinder to sphere in the left eye=== | |||
Normalized | |||
OD: -3 sphere, -.75 cylinder, axis 142 | |||
OS: -2.25 sphere, -.75 cylinder, axis 28 | |||
Differential (close-up) | |||
OD: -1.25 sphere, -.75 cylinder, axis 142 | |||
OS: -0.5 sphere, -.75 cylinder, axis 28 | |||