Vision changes naturally as we age. In addition to vision clarity, aging can also impact the way you perceive colors. In fact, abnormal color vision changes affect 45% of individuals in their 70s and at least half of people aged 85 and older.

Why does your color vision change as you age? 

1. Cataracts

Cataracts develop slowly over time. While many symptoms are often unnoticeable until years later, early cataract symptoms can include changes to how you interpret color.

Cataracts can cause:

• A yellowing effect. As cataracts progress, proteins clump together and may turn yellow. These proteins may give your vision a yellow tint.
• Altered colors. Cataracts can also make it difficult to distinguish between certain hues. Colors may become yellow and dull, making it more difficult to identify darker shades like purple, blue and brown.

Altered colors can impact your career and everyday life. Fortunately, cataract surgery corrects your vision and these color changes.

2. Natural Yellowing of the Eye Lens

As we age, we experience a natural yellowing or browning of the eye lens due to years of exposure to wind, dust and ultraviolet light.

Oxidative stress can also cause yellowing. The eye lens is constantly exposed to oxygen and light, which can lead to the production of free radicals. Over time, these free radicals can alter the structure of the proteins in the lens. Medical conditions (such as diabetes) and lifestyle habits (such as poor diet and smoking) can also increase oxidative stress that speeds up the yellowing process. 

As the lens yellows, it can add a tint to your vision that alters how you perceive colors.

3. Macular Degeneration

Macular degeneration is a leading cause of vision loss in older adults, but it can also cause color vision changes. 

This condition primarily affects the macula, the central part of the retina that contains a high concentration of the cone cells responsible for color vision. Cone cells allow us to perceive and distinguish a wide range of colors. 

Macular degeneration damages these cells or causes them to deteriorate, which alters how we see colors. 

You may experience the following:

• Trouble distinguishing between colors, especially those that are close in hue, like blues and purples.
• Colors that are less vibrant or duller than they used to be.
• Some colors may be harder to distinguish, while others may be more dominant.

Because macular degeneration is a progressive condition, these changes may become more prominent over time.

4. Smaller Pupils

As we age, our pupils shrink. The muscles that control pupil size and reaction to light lose their strength over time. 

Smaller pupils allow less light in, affecting color vision and making it more difficult to see clearly in low-light situations.

Because less light reaches the retina, colors appear dulled or less vibrant, and it becomes harder to distinguish colors. Blue hues may appear grayish or duller than usual. 

5. Age-Related Changes to Retinal Cells

Aging affects our retinal cells and the way we see colors. Over time, we lose cone photoreceptors, making us less sensitive to color wavelengths. Blues in particular become more faded or gray.

The recycling and regeneration of photopigments (cone cells use these to detect light and color) also slows down, making it harder to respond quickly to color stimuli.

Final Thoughts

Aging and eyesight are intertwined. The natural aging process affects how we perceive colors, but if you experience noticeable or sudden changes to your color vision, this may be a sign of an underlying eye condition that requires immediate care. 

If you’ve noticed changes in how you see colors or if you’re experiencing any other vision challenges, a comprehensive eye exam can help identify the cause. To schedule your appointment, contact North Florida Cataract Specialists and Vision Care today at 352-373-4300.