To test the theory, 15 volunteers were asked to read from a computer screen while a sensor tracked their eye movements, recording any blinks.
为了测试以上提出的理论，15个自愿者面对电脑阅读，同时感应器记录他们的眨眼行为。
2
A test for pressure inside the eye, or intraocular pressure, is one way to screen for the disease, but people with normal pressure can still have glaucoma.