Here's a page with maths related to diopters and glasses.
Diopters are inverse meters
Remember that 100cm = 1m.
conversely
Point of refraction
https://youtube/9z2jjT_Gm7o
(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