Accurate color vision testing for children, adults, and career requirements — fast, painless, and included as part of your comprehensive eye exam.
Color Vision Screening
Color vision deficiency — commonly called color blindness — affects approximately 1 in 12 men and 1 in 200 women. Most people with color vision deficiency aren't fully "color blind" — they see color, but certain hues are difficult to distinguish, particularly reds and greens or, less commonly, blues and yellows.
Many people go years without knowing they have a color vision deficiency. Children may struggle in school with color-coded materials without understanding why. Adults pursuing careers in aviation, law enforcement, electrical work, or medicine may encounter color vision requirements they weren't aware of. A simple screening during your eye exam can provide answers and clarity.
At Elite Eyecare Nashville, color vision screening is in addition to our comprehensive eye exam. We use validated testing tools to accurately characterize the type and severity of any deficiency — and provide the documentation you may need for career or educational purposes.
Types of Deficiency
Color vision deficiency isn't one condition — it has several distinct types based on which photoreceptors are affected.
The most common type, affecting the red (protan) or green (deutan) photoreceptors. Patients have difficulty distinguishing certain shades of red, orange, yellow, and green from each other.
Less common, affecting the blue (tritan) photoreceptors. Difficulty distinguishing blue from green and yellow from violet. Can be acquired due to aging, glaucoma, or certain medications.
Rare condition (achromatopsia) where all color vision is absent. Patients see only in shades of grey and typically also have reduced visual acuity and light sensitivity.
Color vision can deteriorate due to optic nerve disease, macular degeneration, diabetes, certain medications (like hydroxychloroquine), or toxic exposure. Monitoring for acquired changes is part of ongoing eye care.
Career & Licensing Requirements
Color vision requirements exist across a wide range of professions. If you're pursuing or currently working in one of the fields below, you may need formal color vision screening documentation from a licensed eye care provider. We perform the appropriate testing and provide the written results you need.
Our Approach
The primary screening tool is the Ishihara Color Vision Test — a series of plates with numbers or patterns embedded in colored dots. Patients with normal color vision see the numbers clearly; those with deficiencies cannot. This test reliably identifies red-green deficiency.
For patients who fail the Ishihara screening or require more detailed characterization — such as for career licensing — we perform additional tests including the Farnsworth D-15 or Hardy-Rand-Rittler (HRR) plates to identify the specific type and severity of deficiency.
Results are reviewed with you immediately. We explain what the findings mean, how they may affect daily activities and career options, and provide formal written documentation of results for any professional, licensing, or educational requirements.
For patients with known eye conditions, diabetes, or taking medications that can affect color vision, we monitor color vision at regular intervals to detect any deterioration early — especially important for patients on hydroxychloroquine (Plaquenil).
Who Should Be Screened
From school-age children to career professionals to patients on certain medications — here's who benefits most from color vision testing.
Color vision deficiency is often first noticed when children struggle with color-coded classroom materials, art projects, or reading activities. Early identification allows teachers and parents to provide the right support and accommodations before academic confidence suffers.
Students considering careers in aviation, medicine, law enforcement, or the military should be screened early — before investing years in training that may have color vision requirements. Knowing early allows time to explore alternative pathways if needed.
Many professions require documented color vision testing for initial licensing, periodic recertification, or safety compliance. We provide formal written results accepted by licensing bodies and employers for aviation, maritime, rail, and other regulated industries.
Hydroxychloroquine (Plaquenil), used for lupus and rheumatoid arthritis, can cause acquired color vision changes as an early sign of retinal toxicity. Regular color vision monitoring is a critical part of Plaquenil toxicity screening protocols.
Glaucoma, optic neuritis, macular degeneration, and diabetic retinopathy can all cause acquired color vision deficiency. Tracking changes in color discrimination over time provides valuable information about disease progression.
Red-green color vision deficiency is inherited as an X-linked recessive trait — passed from mother to son. If you have a family history of color blindness, screening your children early is especially worthwhile.
Why Elite Eyecare
Color vision screening should give you answers you can actually use — whether that's for school, career planning, or ongoing eye health monitoring.
We use clinically validated color vision tests — not online apps or informal screening — that produce accurate, reproducible results you can rely on for professional documentation.
We provide written results on office letterhead for any career, licensing, or educational requirement — including the specific test used, the findings, and the clinical interpretation.
Nashville patients consistently rate us 5.0 stars for thorough, communicative, genuinely caring eye care at every visit.
Color vision screening is an add-on — it's specialized testing that can be added into our comprehensive eye exam so nothing gets missed, and any acquired changes are caught early.
Color vision testing is in addition to your comprehensive eye exam. Our team verifies your benefits before your visit.
FAQ
Whether it's for your child's education, your career licensing requirements, or your own peace of mind — Elite Eyecare Nashville provides accurate color vision screening with results you can rely on.
Visit us today and experience the difference of personalized and comprehensive eye care services.
