An App only fore Entertainment
Test your eyesight
Can do Like an eye test by an optician you can prove your eyesight on an party.
There are symbols with openings either left, right, up or down.
The first canals are large symbols its very simple.
When you have discovered the first three symbol openings properly be the symbols with openings smaller and it is more difficult.
When you have discovered the second four symbol openings properly be the symbols with openings smaller and it is more difficult again.
In total there are 7 lines be queried until the last line of the smallest symbols
Look how far you get
If an incorrect answer you fall back