Read the sentences in each question and combine them into one using a relative clause. Blindness still scares people in the 21st century. The thought of blindness strikes terror and despair in people worldwide.

The perceptual mobility approach is meant for blind people. The approach has found its success with thousands of people.

Juan Ruiz is one of the users of the approach. He says it has taught him to see with his ears.

Kish uses a panel to make an experiment on stage. He moves it toward his face like a sonar.