Skip to main content

Color Vision Changes

Colors appearing washed out, altered, or different between eyes can indicate optic nerve problems or other conditions. Learn about causes of acquired color vision changes.

7 min read

Color changes may be subtle: red looks dull, one eye sees colors as "washed out," or colors do not match when you compare eyes. When this starts later in life, it is different from inherited color blindness; acquired color vision changes can point to the optic nerve, retina, or visual pathways.

Key Takeaways

  • New color changes are not the same as lifelong color blindness-timing matters
  • Red desaturation is a classic clue in optic neuritis and other optic nerve problems
  • One eye seeing colors differently points toward an eye or optic nerve issue on that side
  • Washed-out color plus blur, pain, or dim vision deserves evaluation

Types of Color Vision Changes

Acquired Color Vision Deficiency

  • Develops after birth
  • Often affects one eye more than the other
  • May be associated with vision loss
  • Usually red-green axis affected (optic nerve disease)
  • Can progress or improve depending on cause

Inherited Color Vision Deficiency (Color Blindness)

  • Present from birth
  • Affects both eyes equally
  • Stable throughout life
  • More common in males
  • See our color vision deficiency page for detailed information

What Color Vision Changes Feel Like

People describe acquired color vision changes as:

  • Colors appearing "washed out" or faded
  • Red appearing less bright, more orange or brown
  • Colors seeming duller in one eye vs. the other
  • Overall vision appearing "dimmed" or "darker"
  • Colors looking different when comparing eyes
  • Difficulty distinguishing certain colors
  • Colors appearing different than before

Red Desaturation

This specific comparison can be clinically useful:

  • Red objects appear less red, more orange or brown
  • Most noticeable when comparing eyes
  • Doctor may test by asking if red appears equally red in each eye
  • Even a red pen cap can demonstrate this
Side-by-side comparison showing normal red color vision versus red desaturation - a vivid red apple on the left appears washed-out orange-brown on the right, illustrating how optic nerve disease affects color perception
Red Desaturation Comparison - Normal Color Vision vs. Optic Nerve Color Loss

Common Causes

Optic Nerve Disease

Optic nerve disease is an important category to consider:

Optic neuritis

  • Inflammation of the optic nerve
  • Red desaturation is classic finding
  • Often with eye pain, especially with movement
  • Vision usually recovers but color vision may remain affected

Ischemic optic neuropathy

  • Blood flow loss to optic nerve
  • May have color vision changes
  • Associated with vision loss

Compressive optic neuropathy

  • Tumor or mass pressing on optic nerve
  • Gradual color vision loss
  • Often with other visual symptoms

Toxic/nutritional optic neuropathy

  • From B12 deficiency, alcohol, tobacco, or medications
  • Typically affects both eyes
  • Blue-yellow axis may be affected

Glaucoma

  • Progressive optic nerve damage
  • Color vision may be affected, especially blue-yellow
  • Often not noticed by patients

Retinal Disease

Macular degeneration

  • Central vision and color affected
  • May have distortion

Diabetic retinopathy

  • Can affect color perception
  • Usually with other retinal changes

Cone dystrophies

  • Inherited conditions affecting color-sensing cells
  • Progressive color vision loss

Other Causes

Multiple sclerosis

  • Through optic neuritis
  • Color vision changes may be first sign

Medications

  • Some drugs can affect color vision
  • Often reversible when stopped

Cataracts

  • May give yellowish tinge to vision
  • Colors appear less vivid
  • Improves after surgery

When to Seek Care

See a doctor if you notice:

  • New color vision changes
  • Colors appearing different in one eye vs. the other
  • Red looking washed out or orange
  • Progressive color vision loss
  • Color changes with other visual symptoms

How Color Vision Changes Are Evaluated

Color Vision Testing

  • Ishihara plates-screening for red-green deficiency
  • Farnsworth D-15-arrangement test
  • Farnsworth-Munsell 100 hue-detailed assessment
  • Comparing eyes-asymmetry suggests optic nerve problem

Clinical Examination

A Simple Observation That Helps

Cover one eye at a time and compare the same red object under the same lighting. A red bottle cap, phone icon, or stop sign looking duller in one eye is useful information for the visit. Do not repeatedly test until your eyes are tired, and do not use this as a substitute for care if vision is dim, painful, or worsening.

Additional Tests

Treatment and Management

Treatment follows the cause; there is no separate "color vision medicine":

For Optic Neuritis

  • IV steroids may speed recovery
  • Color vision often improves but may not return to normal
  • Evaluation for MS important

For Compressive Causes

  • Surgery to remove mass/tumor
  • Color vision may improve after decompression

For Toxic/Nutritional Causes

  • Remove offending agent
  • Supplement deficiencies (B12, folate)
  • May improve if caught early

For Glaucoma

  • Lower intraocular pressure
  • Prevent further nerve damage

Adaptation Strategies

  • Good lighting helps distinguish colors
  • Label items if color confusion affects daily life
  • Various apps can help identify colors
  • Color-coded systems may need modification

Frequently Asked Questions

Is acquired color vision loss permanent?

It depends on the cause. Optic neuritis may recover partially or substantially. Color loss from long-standing glaucoma or permanent optic nerve damage is more likely to persist. Early diagnosis is important because some causes are treatable.

Can I tell if my color vision has changed?

Compare red objects between eyes. If one eye sees red as less bright, more orange or brown, this suggests an optic nerve problem in that eye. Your doctor can perform formal color vision testing.

Is color change alone enough to diagnose optic neuritis?

No. Red desaturation is a useful clue, but optic neuritis is diagnosed from the whole picture: vision level, pain with eye movement, pupils, color plates, visual fields, OCT, and often MRI brain and orbits.

Is red desaturation specific to optic nerve problems?

Red desaturation is classic for optic nerve disease, particularly optic neuritis. However, any cause of optic nerve damage can cause it. Retinal problems typically affect blue-yellow more than red-green.

Should I be concerned if I have color blindness from birth?

Inherited color blindness (present since birth, affecting both eyes equally) is not a neuro-ophthalmologic problem. It's stable and doesn't indicate disease. Acquired color vision changes (new, or different between eyes) warrant evaluation.

Can cataracts affect color vision?

Yes. Cataracts filter out blue light and give vision a yellowish tinge. Colors may seem less vivid. Color vision typically improves after cataract surgery-patients often notice colors appear much brighter.

References

Was this article helpful?