Vision spot test
Vision spot test: process input with a deterministic local pure function, validate boundaries, and avoid network, devices, or browser state.
Runs in your browserEvery computation happens in your browser — your data never leaves this device.
Input
Result
Local deterministic result
Enter a value to see the result
What this tool does
- Inspect a local result
- Copy the result to another tool
Example
Input
vision
Output
视觉盲点测试 · ● · · · · · · ● · · · · · · ● · · · · · · ● · · · · · · ● · · · · · · ● · · · · · · ● · · · · · · ● · · · · · · ● · · · · · · 请按说明逐行检查（不替代专业验光）
Results come from deterministic local logic; device, network and permission actions are not executed by the pure function.
Frequently asked questions
Does it use the network?
No, input is processed locally.
Is it reproducible?
Yes, identical input and options produce the same result.
Are device features executed?
No, device and permission actions are explicitly skipped.
Keywords：视觉盲点测试Vision spot testtest-visionoffline纯函数deterministic