My Flight Surgeon, PC
personalized aviation healthcare
Farnsworth Lantern (FALANT) and Color Vision Testing
Do you have a color vision deficit and cannot pass the standard pseudoisochromatic plate test
as shown here?  
The simplest and most active alternative test is the
Farnsworth Lantern (FALANT) Test for color vision.
This is the preferable test to the other option, the
color signal light gun test since FAA authorization is
not required for the FALANT.

First developed in the 1950's for the US Navy, the
FALANT became the standard for military color
vision testing.

If you pass the FALANT, your medical certificate can
be issued without a color or night flying restriction. If
you fail the FALANT, you can still request authoriza-
tion from the FAA to take a color signal light test,
OCVT (operational color vision test, and for First
and Second Class medical certificates the MFT
(color vision medical flight test) to obtain a Letter of
Evidence for color vision.
Pseudoisochromatic color plate
If you have questions regarding color vision and medical certification, we can guide you through
the process.
In the FALANT test, you are presented with a
combination of two colored lights which may
be any combination of RED, GREEN and/or
WHITE. The combination may be two lights of
the same color and may be presented more
than once during the test.  Examples are
shown here.
Farnsworth Lantern
The test operator visualizes the correct test
answer on the top of the machine.







The test is comprised of a series of 9
combinations of colors. These may be
presented a total of three times to the
applicant. The test is scored as PASS if the
applicant has an average of less than one
error for the complete test series.



To schedule a Farnsworth Lantern
(FALANT),  OPTEC  900 or Dvorine
Test, call
or
e-Mail Patty at 602-368-5633 or click on
Appointments.

The fee is $75.
OPTEC 900 and Color Vision Testing
In the OPTEC 900 test, you are presented
with a combination of two colored lights
which may be any combination of RED,
GREEN and/or WHITE. The combination may
be two lights of the same color and may be
presented more than once during the test.  
Examples are shown here.
The test is comprised of a series of 9 combinations of colors. These may be presented a total of three
times to the applicant. The test is scored as PASS if the applicant has an average of less than one error
for the complete test series.
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Dvorine Color Test
plate test, however, there are some airmen who pass the Dvorine yet cannot pass the Ishihara test. The
FAA standards states " An applicant does not meet the color vision standard if testing reveals seven or
more errors on plates 1-15".




















Ishihara Color Test
The Ishihara color test is a series of 14 pseudoisochromatic color plates. The FAA standards states "
An applicant does not meet the color vision standard if testing reveals six or more errors on plates 1-11".


















Keystone Orthoscope
This is a vision testing machine that uses six pseudoisochromatic images to test color vision. "The FAA
standards states " An applicant does not meet the color vision standard if testing reveals any errors in
the six plates".

Richmond HRR Color Test
The Richmond HRR Color Test is a series of 24plates. The plates display only 3 symbols which are
identified by symbol shape and location on the plate. An applicant does not meet the color vision
standard if testing reveals 2 or more errors on plates 5-24.





















Richmond Pseudoisochromatic Plate Test
The Richmond Pseudoisochromatic Plate test is a series of 15 pseudoisochromatic color plates. The
FAA standards states " An applicant does not meet the color vision standard if testing reveals seven or
more errors".

We have all of the above mentioned tests for color vision available. We can perform a full color vision
examination utilizing all of the above tests to determine what type, if any, color vision deficiency you may
have. Contact
Patty at 602-368-5633 to set up an appointment or select Color Vision Consultation for
the visit type when making the appointment on-line at
Appointments



To schedule a Farnsworth Lantern
(FALANT),  OPTEC  900 or Dvorine
Test, call
or
e-Mail Patty at 602-368-5633 or click on
Appointments.

The fee is $75.
Color Vision Testing
Color Vision Consultation
We provide a full color vision consultation utilizing all of the color vision tests we have for a fee of $175.