Difference between revisions of Optics related math
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Revision as of 14:35, 14 June 2020
Here's a page with maths related to diopters and glasses.
Diopters are inverse meters
Remember that 100cm = 1m.
conversely
Point of refraction
(meters)
(meters)
(meters)
(diopters)
Visual acuity equation
Note: 5Arcminutes = 20/20
Set up proportion:
Visual acuity (mm/metres)
Visual acuity (in/feet)
With text that we are familiar the brain may clear up that text more than our vision actually operates at.[1]
Average axial length accomodation/rate of change
If someone with typical eyes wanted to adapt say 20/20 to .25 less normalized within 3-4 months would need to decrease axial length 0.083mm about 0.92microns/day - 0.69microns/day average Credit: Mark Podowski
- ↑ The EndMyopia Blog, https://endmyopia.org/use-math-to-turn-any-text-into-your-own-impromptu-eyechart/