Kessler theorized that each accident in LEO would create a cloud of space shrapnel, imperiling other satellites in a cascade effect now known as the Kessler Syndrome.

• 青光眼：青光眼因病理性高眼压引起的视网膜神经纤维损害及视野缺损的致盲性疾病，是眼科重症，严重时眼压突然升高，可使眼睛突然失眼。