There are many ways to determine the speed of sound. The method we will use in this lab is both fairly. straight forward and the equipment needed is fairly minimal. We will be creating sounds and recording. them with two microphones. We will measure the di erence in distance between the paths the sounds take.
High pressure inside of the eye is caused by an imbalance in the production and drainage of the fluid in the front of the eye (aqueous humor). The channels that normally drain the fluid from inside the eye consequently do not function properly or are blocked.
Tears are a combination of water, for moisture; oils, for lubrication; mucus, for even spreading; and antibodies and special proteins, for resistance to infection. These components are secreted by special glands located around the eye. When there is an imbalance in this tear system, a person may experience dry eyes. When tears do not adequately lubricate the eye, a person may experience: 1  Pain. 2  Light sensitivity. 3  A gritty sensation. 4  A feeling of a foreign body or sand in the eye.