The majority of eye experts believed it was unlikely to do any permanent damage, but it might make you squint, blink more and have trouble focusing, the researchers said.

• 这两位研究者说，大多数眼科专家认为这样不会造成永久性伤害，但会让你更频繁地眯眼和眨眼，并使眼睛难以聚焦。