How to judge color weakness
Color Vision Deficiency (CVD) is a common visual impairment characterized by a reduced ability to recognize certain colors. It affects approximately 8% of men and 0.5% of women worldwide. This article will introduce the types, judgment methods and related hot topics of color weakness.
1. Types of color weakness
| Type | Features | Commonly confused colors |
|---|---|---|
| Red Weakness (Protanomaly) | Reduced sensitivity to red | red-green, red-black |
| Green Weak (Deuteranomaly) | Reduced sensitivity to green | green-red, green-brown |
| Blue Weak (Tritanomaly) | Reduced sensitivity to blue | blue-yellow, blue-purple |
| Monochromacy | Can only distinguish between light and dark | all colors |
2. Methods to judge color weakness
1.Color blindness test chart (Ishihara test): The most commonly used method is to hide numbers or patterns in dots of different colors, making it difficult for those with color weakness to identify.
2.color arrangement test: It is required to arrange the color blocks in the order of color gradient. People with color weakness may have the wrong order.
3.Online color weakness testing tool: Popular tools in the past 10 days include:
| Tool name | Features | Applicable platforms |
|---|---|---|
| Color Blind Check | Rapid screening of red and green weak | iOS/Android |
| EnChroma test | Simulate color weak viewing angle | Web version |
| Color Weakness Simulator | Showing the visual differences of people with color weakness | Chrome plug-in |
4.Professional eye exam: Accurately diagnose the type and degree of color weakness through an anomaloscope.
3. Recent hot topics
1.Color weakness and occupational restrictions: In the past 10 days, social media has been abuzz with the high requirements for color vision in occupations such as pilots and electricians, triggering discussions on equal employment.
2.Color Weakness Assistive Technology: For example, an upgraded version of EnChroma glasses has been released, claiming to improve the color discrimination ability of 80% of people with weak red and green eyes.
3.Game accessibility design: The popular game "Phantom Parlu" has added a "color weak mode" that allows customization of UI colors, which has been well received by players.
4. The life impact and response of color weakness
| scene | FAQ | solution |
|---|---|---|
| traffic signal | Confusing traffic lights | Memory position (red light is on top) |
| study work | Difficulty identifying chart colors | Use texture/text tags |
| Clothing matching | Improper color matching | With the help of color matching APP |
5. Summary
The judgment of color weakness needs to be combined with testing tools and professional examinations. Early detection can help to adapt to life and work restrictions. With the advancement of technology and increasing social attention (such as the recent #ColorBlindAwareness topic trending on Twitter), the needs of color-blind people are gradually being taken seriously.
If you suspect that you have color weakness, it is recommended to conduct preliminary screening through the above methods and consult an ophthalmologist for personalized advice.
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