Color Blindness Correction
Color blindness (color vision deficiency) makes it hard to distinguish certain colors -- most commonly red and green, less commonly blue and yellow, and rarely all color (seeing only shades of grey). It's usually inherited, but can also develop from eye disease, aging, injury, or certain medications. Common signs: difficulty distinguishing colors, trouble with traffic signal colors, confusing red/green shades, problems with color-coded information, and difficulty matching clothing. Diagnosis uses the Ishihara color vision test plus advanced color perception analysis, a general eye health exam, and visual acuity testing. Color-blind lenses don't cure color blindness, but work by selectively filtering specific light wavelengths that otherwise overlap and cause confusion -- improving color contrast and distinction for many (not all) users, depending on the type and severity of their color vision deficiency. Patients report better color distinction, daily visual comfort, and confidence in color-related tasks like driving, work, and study after a personalized evaluation and lens fitting.
or YouTube explainer
