Color Blindness

Image of a teenage boy staring into the distance.

Color blindness, also known as color vision deficiency, occurs when an individual cannot distinguish between certain colors like red and green or, less commonly, blue and yellow.

Cause of Color Blindness

Light-sensitive tissue, the retina, lines the back of the eye and consists of two types of light distinguishing cells: rods and cones. While rods detect or see light and dark, cones are responsible for detecting color and sending the information to the brain for processing. Your eye has three types of cones; one for perceiving red, another for blue, and third for green. In a healthy eye, the cones work together to facilitate your ability to see a broad range of colors. When one or more type of cone functions abnormally, color deficiency occurs.

Color Blindness Symptoms

Depending on which cones are affected, the symptoms of color blindness range from mild to severe. Mild color blindness is defined as difficulty distinguishing colors in low light, and severe color blindness can leave someone seeing only a range of grey tones. Symptoms of color blindness include having difficulty seeing colors or their brightness, and the inability to distinguish between different colors. People with color blindness most frequently have a hard time telling the difference between red and green or blue and yellow.

Risk Factors for Color Blindness

Most individuals with color deficiency are born with it. Congenital color blindness is usually inherited as a genetic trait passed down from mother to son. Males are much more likely than females to inherit color deficiency, experiencing color blindness from birth.

Color blindness, however, can develop as the result of disease, medical conditions, trauma, or as a side effect of medication. Conditions that may lead to color blindness include macular degeneration, glaucoma, Parkinson's disease, Alzheimer's disease, leukemia, sickle cell anemia, and alcoholism. Color blindness which develops later in life as the result of a condition is known as acquired color deficiency.

Diagnosis and Treatment

An eye care professional diagnoses color blindness with a simple test. The patient is shown diagrams comprised of differently colored dots. Color blind individuals will not be able to distinguish shapes or numbers hidden among the dots in a different color.

While there is no cure for congenital color blindness, special lenses for glasses or contacts have been developed to help color deficient individuals distinguish between colors. Acquired color blindness can sometimes be treated by addressing the underlying cause.

Location

Find us on the map

Hours of Operation

Our Regular Schedule

Monday:

Closed

Tuesday:

10:00 am-5:00 pm

Wednesday:

11:00 am-7:30 pm

Thursday:

10:00 am-6:30 pm

Friday:

10:00 am-6:00 pm

Saturday:

9:00 am-2:00 pm

Sunday:

Closed

Testimonials

Reviews From Our Satisfied Patients

  • "I have been using Eyemaxx for over 5 years and would not go anywhere else. Dr. Bwint provides a very thorough exam and is really dedicated to providing you with the best vision you can have. I would highly recommend Eyemaxx to anyone. My whole family uses her."
    Tina P.
  • "My daughter got her first pair of glasses here this week. Everyone at the shop was helpful, friendly and patient as we tried many frames on. They have a good selection of children's frames and we are very happy with the ones we got. Thank you!"
    Jennifer H.
  • "My husband and I (and one of our daughters) have gone to Dr. Sandra Bwint for several years now and we love her! And we love the entire staff at Eyemaxx. My husband and I both have complex vision challenges and Dr. Bwint takes incredible time and care in making sure that she assesses our vision in the most thorough and up to date manner. She has also referred us to other, wonderful professionals in the area (a retinal specialist from Wills Eye Hospital, for instance) when warranted. She is always patient with us if there is a problem with new glasses or frames. And, always greets us with a smile and good cheer. We won't go anywhere else!"
    Nadine B.