Optometric Physicians of Middle Tennessee
605 South Broadway Portland TN 37148 615-325-2020
https://opmt.com/wp-content/uploads/2019/03/opmt-header-logo.png
Optometric Physicians of Middle Tennessee
4322 Harding Pike Suite 214 Nashville TN 37205 615-258-7124
https://opmt.com/wp-content/uploads/2019/03/opmt-header-logo.png
Optometric Physicians of Middle Tennessee
1715 West Main St. Suite 100 Lebanon TN 37087 615-235-6278
https://opmt.com/wp-content/uploads/2019/03/opmt-header-logo.png
Optometric Physicians of Middle Tennessee
105 Main Street Lafayette TN 37083 615-552-1707
https://opmt.com/wp-content/uploads/2019/03/opmt-header-logo.png
Optometric Physicians of Middle Tennessee
715 E. McMurry Blvd Hartsville TN 37074 615-552-1143
https://opmt.com/wp-content/uploads/2019/03/opmt-header-logo.png
Optometric Physicians of Middle Tennessee
165 Indian Lake Blvd. Suite 108 Hendersonville TN 37075 615-265-1941
https://opmt.com/wp-content/uploads/2019/03/opmt-header-logo.png

facebook-square twitter-square yelp instagram chevron-right chevron-left chevron-down x phone location share chevron-thin-right calendar left-quote right-quote black-star-glasses-png eye book-appointment-maroon-icon-(1) types-of-services-white-icon-(1) location-white-icon next2 previous2 forward3 backward2 fax
single blog hero

Disease-Spotlight: Color Blindness

Today’s spotlight is not actually a disease, but a disorder most often caused by affected genes on the X chromosome.

A quick flashback to the magic that was 8th grade science: a human male receives an X chromosome from mom, and a Y chromosome from dad. A human female receives an X from mom and an X from dad. Color-vision is an X chromosome-linked trait, meaning the mutation happens on the X chromosome. 

If you remember, a dominant, correct gene will always mask a recessive, faulty gene. 

It follows from these bits of information that females will be less likely to be color-blind, because they receive two copies of the X chromosome–even if one copy is bad, the other is likely to be good, and the good is the trait that will prevail. Males only have one X chromosome, so if the gene(s) for color-vision are present (genotype), there is nothing to stop it from presenting as a trait (phenotype). 

Indeed, research indicates that about 5% (and possibly as high as 8%) of males are color-blind to some degree, while only 0.5% of women are color-blind. Interestingly, there is an idea that a recessive gene characteristic that exists in 5% or more of a population, it may mean that characteristic have some sort of evolutionary advantage in the long-term. Often, color-blind individuals are able to distinguish camouflage patterns from their backgrounds more easily, which certainly may be an evolutionary advantage! 

Wall Street Journal (online) posted an excellent article about color-blindness that I want to refer you to. The article contains great information, interactive graphics that allow you to see what the world looks like with various types of color blindness, a video, and even a comments-section full of interesting stories! To get to that article, click on the following link:

Wall Street Journal color-vision article

Find A Location

Portland Location

Our Portland location is located on South Broadway between Portland East Middle School & Ace Hardware. Call or schedule your appointment online now!

And on the global location pre-footer that appears on the service pages

  • 605 South Broadway
  • Portland, TN 37148
  • Monday8:00 AM - 5:00 PM
  • Tuesday8:00 AM - 5:00 PM
  • Wednesday8:00 AM - 5:00 PM
  • Thursday8:00 AM - 5:00 PM
  • Friday8:00 AM - 5:00 PM
Schedule an Appointment

Portland Location

Our Portland location is located on South Broadway between Portland East Middle School & Ace Hardware. Call or schedule your appointment online now!

And on the global location pre-footer that appears on the service pages

  • 605 South Broadway
  • Portland, TN 37148
  • Monday8:00 AM - 5:00 PM
  • Tuesday8:00 AM - 5:00 PM
  • Wednesday8:00 AM - 5:00 PM
  • Thursday8:00 AM - 5:00 PM
  • Friday8:00 AM - 5:00 PM
Schedule an Appointment

Nashville Location

Visit our Nashville office, located in the Belle Meade Hill Center.

  • 4322 Harding Pike Suite 214
  • Nashville, TN 37205
  • Monday7:30 AM - 5:00 PM
  • Tuesday7:30 AM - 5:00 PM
  • Wednesday7:30 AM - 5:00 PM
  • Thursday7:30 AM - 5:00 PM
  • Friday7:30 AM - 5:00 PM
  • SaturdayClosed
  • SundayClosed
Schedule an Appointment

Nashville Location

Visit our Nashville office, located in the Belle Meade Hill Center.

  • 4322 Harding Pike Suite 214
  • Nashville, TN 37205
  • Monday7:30 AM - 5:00 PM
  • Tuesday7:30 AM - 5:00 PM
  • Wednesday7:30 AM - 5:00 PM
  • Thursday7:30 AM - 5:00 PM
  • Friday7:30 AM - 5:00 PM
  • SaturdayClosed
  • SundayClosed
Schedule an Appointment

Lebanon Location

Visit our Lebanon office in Lebanon Center, just off Main Street.

  • 1715 West Main St. Suite 100
  • Lebanon, TN 37087
  • Monday8:00 AM - 5:00 PM
  • Tuesday8:00 AM - 5:00 PM
  • Wednesday8:00 AM - 5:00 PM
  • Thursday8:00 AM - 5:00 PM
  • Friday8:00 AM - 12:00 PM
  • SaturdayClosed
  • SundayClosed
Schedule an Appointment

Lebanon Location

Visit our Lebanon office in Lebanon Center, just off Main Street.

  • 1715 West Main St. Suite 100
  • Lebanon, TN 37087
  • Monday8:00 AM - 5:00 PM
  • Tuesday8:00 AM - 5:00 PM
  • Wednesday8:00 AM - 5:00 PM
  • Thursday8:00 AM - 5:00 PM
  • Friday8:00 AM - 12:00 PM
  • SaturdayClosed
  • SundayClosed
Schedule an Appointment

Lafayette Location

Our Lafayette office is located on the square by Macon Helps. We are proud to serve the surrounding areas including Red Boiling Springs, Hartsville, and Westmoreland.

  • 105 Main Street
  • Lafayette, TN 37083
  • Monday1:00 PM - 5:00 PM
  • Tuesday8:00 AM - 5:00 PM
  • WednesdayBy Appointment
  • Thursday8:00 AM - 5:00 PM
  • Friday8:00 AM - 5:00 PM
  • SaturdayClosed
  • SundayClosed
Schedule an Appointment

Lafayette Location

Our Lafayette office is located on the square by Macon Helps. We are proud to serve the surrounding areas including Red Boiling Springs, Hartsville, and Westmoreland.

  • 105 Main Street
  • Lafayette, TN 37083
  • Monday1:00 PM - 5:00 PM
  • Tuesday8:00 AM - 5:00 PM
  • WednesdayBy Appointment
  • Thursday8:00 AM - 5:00 PM
  • Friday8:00 AM - 5:00 PM
  • SaturdayClosed
  • SundayClosed
Schedule an Appointment

Hartsville Location

Our Hartsville office is located at the corner of McMurry Boulevard and Driver Circle.

  • 715 E. McMurry Blvd.
  • Hartsville, TN 37074
  • Monday8:00 AM - 5:00 PM
  • Tuesday9:00 AM - 5:00 PM
  • Wednesday8:00 AM - 6:00 PM
  • Thursday9:00 AM - 5:00 PM
  • Friday8:00 AM - 5:00 PM
  • SaturdayClosed
  • SundayClosed
Schedule an Appointment

Hartsville Location

Our Hartsville office is located at the corner of McMurry Boulevard and Driver Circle.

  • 715 E. McMurry Blvd.
  • Hartsville, TN 37074
  • Monday8:00 AM - 5:00 PM
  • Tuesday9:00 AM - 5:00 PM
  • Wednesday8:00 AM - 6:00 PM
  • Thursday9:00 AM - 5:00 PM
  • Friday8:00 AM - 5:00 PM
  • SaturdayClosed
  • SundayClosed
Schedule an Appointment

Hendersonville Location

Our Hendersonville office is conveniently located in the Indian Lake Professional Building on Indian Lake Blvd.

Please Note: The office closes from 12-1 every day for lunch.

  • 165 Indian Lake Blvd. Suite 108
  • Hendersonville, TN 37075
  • Monday9:00 AM - 6:00 PM
  • Tuesday9:00 AM - 6:00 PM
  • Wednesday7:30 AM - 6:00 PM
  • Thursday8:00 AM - 5:00 PM
  • Friday8:00 AM - 5:00 PM
  • SaturdayBy Appointment Only
  • SundayClosed
Schedule an Appointment

Hendersonville Location

Our Hendersonville office is conveniently located in the Indian Lake Professional Building on Indian Lake Blvd.

Please Note: The office closes from 12-1 every day for lunch.

  • 165 Indian Lake Blvd. Suite 108
  • Hendersonville, TN 37075
  • Monday9:00 AM - 6:00 PM
  • Tuesday9:00 AM - 6:00 PM
  • Wednesday7:30 AM - 6:00 PM
  • Thursday8:00 AM - 5:00 PM
  • Friday8:00 AM - 5:00 PM
  • SaturdayBy Appointment Only
  • SundayClosed
Schedule an Appointment

Our Services

facebook twitter linkedin2 google-plus instagram pinterest youtube phone link location calendar envelope share2