Difference between revisions of Astigmatism measurement
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quote from BadZen but it sounds right to me based on what I've read
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(quote from BadZen but it sounds right to me based on what I've read) |
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''Astigmatism measurements vary a lot by time, lighting, what you've been eating/reading, phase of the moon, etc, etc. If you repeat one within .25 that's actually pretty good O_o.'' | |||
Use the astigmatism fan. Best instructions from a quick search are https://www.slideshare.net/SeenaJose2/astigmatic-fan, though that's intended for optos so goes into a lot more detail and technology. | Use the astigmatism fan. Best instructions from a quick search are https://www.slideshare.net/SeenaJose2/astigmatic-fan, though that's intended for optos so goes into a lot more detail and technology. | ||
1. Find an astigmatism fan: https://duckduckgo.com/?t=ffab&q=astigmatism+fan&iax=images&ia=images | 1. Find an astigmatism fan: https://duckduckgo.com/?t=ffab&q=astigmatism+fan&iax=images&ia=images | ||