So are you colorblind? well in this video I'm going to be walking you through the
Ishihara color blind test so that you can figure out if you are color blind
or not, let's take a look. hello and welcome this is dr. Allen here from the
doctor eye health show helping you learn all about the eyes and vision and I'm
excited today because we're gonna walk through the ishihara color blind test
this is the most famous colour blind test that's out there this is the one that
you've probably seen with little colored circles on it but this is gonna be cool
because we're gonna one show you really test if you have color blindness and
then furthermore give some idea of what type of colorblindness you may have. now
color blindness as a topic is pretty complex so I have included this video in
a complete series about color blindness so if you want to learn more about the
science of color blindness how it gets passed down genetically or if you want
to hear more about different color blind glasses that are out there I've included
this video again in a complete series and I'll include that link in the
description below so you can find easily. now before we going I just want to
mention that there are different types of color blind tests out there the ishihara test
that we're going to be doing today is just happens to be the most
common there's also the HRR test which a lot of clinics are using because it's a
little bit more specific to what type of color deficiency or colorblindness
somebody has there's even the d15 or the d100 where people put colored circles in
order which will tell us a little bit more about what type of color saturation
and hues they're able to perceive and there's even special color vision
anomalous scopes which are usually in more in University settings for people
with other types of color deficiency or color blindness and just to be fully
clear color blindness is technically not the right term in eye clinics it's
usually used as color vision deficiency. but I get it, most people will just say
color blindness. now this first page here shows a number 12 and this is really
just a testing page so that we can show you exactly how this works when we're
gonna go to every single page you're gonna see some form of a number or
something scribbled on to a bunch of small little colored circles so this
first one again is number 12 everybody should be able to see this whether they
have normal color vision or if they have complete color blindness they can still
make this one out so if we flip to the next page here
somebody has normal color vision they should see an eight on this first page
however somebody with color vision deficiency like a red-green deficiency
should seek something closer to a number three and then on the other adjacent
page you should be seeing a five if you have normal color vision and then again
somebody with some sort of red-green deficiency will see something closer to
a number two hidden in there now in the next page here you're gonna see a couple
more numbers this first page here you should see a number twenty-nine somebody
with color deficiency will see seventy on the next page over you should see a
seventy-four well again somebody with the red-green deficiency should seek
something closer to 21 now the next two pages six and seven they should be very
obvious for people with normal color vision however they're almost illegible
for people with red-green color deficiency there should be a number
seven here on this side and then we should see something closer to 45 here
on page seven now on the next page these are some of my favorites here on this
side it should be a very obvious number two for normal individuals but it's very
difficult or near impossible to see if you have red-green color deficiency and
on this side it's nearly impossible to see that there's a number two unless you
have red-green color deficiency then it is very obvious that there is a number
two there I always thought it was pretty cool as they threw in this one that's
kind of inverted and makes it kind of doubt yourself if you have normal color
vision that hey maybe I do have color blindness now here on the next page a
person with normal color vision should see the number 16 were a person with
color deficiency will have hard time identifying any numbers at all on this
side it's actually more of a trace the line sort of test going from an X on the
left side to the right person with normal color should be able to see the
colored line is kind of a blue green line going across but again if you have
color division deficiency you may not be able to see that line at all now we're
gonna pause for just a moment before we continue with the last few slides
because I want you to take a second and cleave a comment of how many slides
you've gotten correct so far if you've had ten or more of the slides done
correctly then you have normal color vision if you're somebody who has only
gotten seven or less plates correctly then you have already
been identified as having some form of color vision deficiency and that's where
the last three slides that we're about to go over they'll help us identify are
you more of somebody who has red color vision deficiency as in somebody with a
protanopia or if you have more green color vision issues such as in deuteranopia
so for the next slide if you have normal color vision you should see
the number 35 if you have a green color deficiency you can't see green very well
but you can still see red then the number three should be pretty obvious on
the other side if you have a hard time seeing Reds but you still see greens
just fine then the number five should be standing out but just here on the other
side it's gonna be very similar if you see normal color vision it's gonna be a
96 if you have some form of a red color vision deficiency and you can only see
green the six will be obvious where if he's the opposite and you have a hard
time seeing green colors but you see red just fine the nine should be pretty
obvious and the next plate here is another line drawing test where a person
with red color vision deficiency will only be able to see the line here at the
bottom or a person with green color deficiency should only be able to see
the line here at the top now before we go let's try something fun we're gonna
look through some of these plates but while wearing Kyle stone at color blind
glasses and I'm gonna hold them up so that you can see through them and I've
heard from some people that with a filter such as colorblind glasses they
can actually see these colors and if you have a color deficiency let me know if
you can see these colors all of a sudden okay so the Pilestone brand of
colorblind glasses comes in different strengths this type is specifically
meant for people with severe types of protan or dutan color blindness and
will actually just flip through some of these pages now I have normal color
vision so this is really just causing the numbers to really stand out and I
can see especially here on the number 5 how drastically the color blind glasses
change the appearance of the colors I think because of these glasses have more
of a pinkish hue it makes the Reds and the oranges stand out a little bit more
and I know here on this side people with normal color vision can't normally see
that but while wearing the glasses I can start to see the outline of the two it's
interesting how it makes the greens look so much darker versus the Reds look even
more kind of red or pinkish basically it feels like I'm just enhancing the
contrast on everything now again I'm not colorblind so these
glasses may not do much for me but if you have color vision deficiency and you
can see the numbers on this test through this lens let me know because I want to
know if it really works through a camera like this otherwise thanks for watching
if you liked the video smash that like button for me subscribe if you're new
and if you'd like to see another video about color vision specifically I'll
hook a link up here to the side that you can click or tap on or if you'd like to
see another cool video from dr. I help go ahead and click or tap the screen
down over here again thanks for watching keep an eye on it and we'll talk to you
soon