Superpower Wiki

There is a such thing as enhanced eyesight, but there are different branches of it, too.

Branches[]

Look at the vision articles on the SP Wiki for all other powers. These ones are not listed.

  • Visual Acuity
  • Color Vision
  • Frame Rate

Visual Acuity[]

Visual acuity is the power of a being to resolve small details, like the small E on the Snellen eye chart. It is measured using a fraction with 20 as the numerator. The larger the denominator, the worse the eyesight. The actual acuity is an angle. 20/20 corresponds to detail subtending 1 minute of arc (1/60 degree), while 20/1 corresponds to detail subtending 3 seconds of arc (1/20 minute or 1/1200 degree). It is measured using a faraway chart with letters progressively decreasing in size. At an optometrist's office, if the patient cannot resolve the detail in the huge E at the top of the chart (20/200 or 10 arcminutes), he will be pitched against a distance test called Counting Fingers.

Counting Fingers[]

Count Fingers is measured in CF x (x is the farthest the patient can count fingers in feet) and is used for testing people worse than 20/200 (10 arcmin)

  • CF 20 = 20/400 or 20 arcmin
  • CF 10 = 20/800 or 40 arcmin
  • CF 8 = 20/1000 or 50 arcmin
  • CF 7 = 20/1143 or 57 arcmin
  • CF 6 = 20/1333 or 1.11 degree (67 arcmin)
  • CF 5 = 20/1600 or 1.3 degree
  • CF 4 = 20/2000 or 1.7 degree
  • CF 3 = 20/2667 or 2.2 degree
  • CF 2 = 20/4000 or 3.3 degree
  • CF 1.5 = 20/5332 or 4.4 degree
  • CF 1 = 20/8000 or 6.7 degree
  • CF .5 = 20/16000 or 8.9 degree

Eye Chart[]

  • Line 1 (E) = 20/200 or 10 arcmin
  • Line 2 (FP) = 20/100 or 5 arcmin
  • Line 3 (TOZ) = 20/70 or 3.5 arcmin
  • Line 4 (LPED) = 20/50 or 2.5 arcmin
  • Line 5 (PECFD) = 20/40 or 2 arcmin
  • Line 6 (EDFCZP) = 20/30 or 1.5 arcmin
  • Line 7 (FELOPZD) = 20/25 or 1.25 arcmin 
  • Line 8 (DEFPOTEC) = 20/20 or 1 arcmin (60 arcsec)
  • Line 9 (LEFOPCT) = 20/15 or 45 arcsec
  • Line 10 (FDPLTCEO) = 20/13 or 39 arcsec
  • Line 11 (PEZOLCFTD) = 20/10 or 30 arcsec

How to go Farther than Eyechart[]

Just snip the 20/10 (last line) line off the chart and put it farther from you.

Color Vision[]

Color Vision is the ability to see different colors. There is a rare type of person called a tetrachromat, who is specified to see 100 times more colors than normal people. Contrast is also covered under color vision.

Frame Rate[]

Frame Rate is the number of images one sees every second. Seeing at 1 fps is very choppy, Seeing at 1000 fps sees an image every millisecond. Seeing at 1000000 fps sees an image every microsecond.

  • Planck frame rate = 18.553 tredecillion frames per ssecond