Category: <span>Colorblindness</span>

Color Perception, Photoreceptors and the Different Types of Colorblindness

Contrary to what the name suggests, colorblindness isn’t an absolute blindness to color. The perception of color is a complex process involving the eyes and the brain, and even two people who consider themselves “color vision normal” may disagree on certain hues – is that sunset more pink or purple? In a person with a diagnosed color vision deficiency (a more accurate term), they usually will experience what is considered a “shortened spectrum”, meaning they are able to distinguish fewer colors compared to a color-normal person and may confuse a few different shades as the same color. In Caucasian populations, the overall prevalence of colorblindness is typically quoted as 8% in males and 0.5% in females. A study conducted in Californian preschool boys found the lowest rate of colorblindness in African American at 1.4% and the second lowest in Hispanic boys at 2.6%.

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Research & Publications

Man with dry eyes working on computer

The Link Between Dry Eye and Depression

If clinical depression involves sadness, low mood, and bouts of crying, you’d think it’d be more associated with watery …

What eye floaters look like

Food for Floaters

It’s a fly! No, it’s a spider! No, it’s a…. vitreous floater. Though you may be relieved to realize you’ve not …

Happy senior couple

Cataract Surgery Could Reduce Dementia Risk

With dementia affecting almost 6 million people in the US, it wouldn’t be unexpected that you may personally know of someone …