====== Visual Acuity Conversion Table ======
^20 ft^6 m^Decimal^4 m^Log MAR^
|20/630|6/190|0.032|4/125|+1.5|
|20/500|6/150|0.04|4/100|+1.4|
|20/400|6/120|0.05|4/80|+1.3|
|20/320|6/95|0.06|4/63|+1.2|
|20/250|6/75|0.08|4/50|+1.1|
|20/200|6/60|0.1|4/40|+1.0|
|20/160|6/48|0.125|4/32|+0.9|
|20/125|6/38|0.16|4/25|+0.8|
|20/100|6/30|0.2|4/20|+0.7|
|20/80|6/24|0.25|4/16|+0.6|
|20/63|6/19|0.32|4/12.5|+0.5|
|20/50|6/15|0.4|4/10|+0.4|
|20/40|6/12|0.5|4/8|+0.3|
|20/32|6/9.5|0.63|4/6.3|+0.2|
|20/25|6/7.5|0.8|4/5|+0.1|
|20/20|6/6|1.0|4/4|0|
|20/16|6/4.8|1.25|4/3.2|-0.1|
|20/12.5|6/3.8|1.6|4/2.5|-0.2|
|20/10|6/3|2.0|4/2|-0.3|