Scleral Contact Lenses for Other Eye Problems. In addition to keratoconus, scleral contact lenses can be used for eyes that have undergone a cornea transplant, and for people with severe dry eyes caused by conditions such as Sjogren's syndrome, graft-versus-host disease (GVHD) and Stevens-Johnson syndrome.
Aneroid sphygmomanometer with an adult cuff. A sphygmomanometer (pronounced /ËsfÉªÉ¡moÊmÉËnÉmÉ¨tÉr/. SFIG-moh-mÉ-NOM-i-tÉr) or blood pressure meter is a device used to. measure blood pressure, comprising an inflatable cuff to restrict blood. flow, and a mercury or mechanical manometer to measure the pressure. It is always used in conjunction with a means to determine at what. pressure blood flow is just starting, and at what pressure it is. unimpeded.
A sling psychrometer is a common instrument used by meteorologists to determine the relative humidity. This instrument is swung around while being held. There are also a variety of other humidity sensors which work automatically to measure the water content and relative humidity of the atmosphere. wind vane is used as part of the anemometer to determine the wind's direction. As the wind flows over the windmill, the speed and direction of the wind can be measured with this instrument. Some scientific anemometers use the speed of sound to measure the wind speed more precisely in three dimensions.