Astigmatism Chart
The astigmatism chart shows radiating lines. If some directions look blurrier than others, it may indicate astigmatism β an uneven corneal curvature.
Key Features
- Radial line fan
- Clarity comparison
- Axis hint
- Self-screen
- 100% client-side
Use Cases
- Astigmatism self-check
- Pre-eye-exam baseline
- Tracking changes
How to Use
- View the fan at reading distance
- Compare line sharpness by direction
- Note the blurriest axis
- Repeat per eye
- Discuss with an optician
Practical Tips
- Even lighting helps
- Donβt squint
- One eye at a time
- It screens, it does not prescribe
FAQ
- Blurry lines = astigmatism?
- Often yes, but only an eye exam confirms axis and degree.
- Can I use it for glasses?
- No β it only suggests a check is worthwhile.