Vitrectomy Surgery. updated. Sometimes, a vitreous hemorrhage can clear up on its own. If vision does not improve, vitrectomy surgery may be necessary. A vitrectomy is a surgical procedure that is performed to remove the clouded vitreous gel in the center of the eye.
Hail is generally associated with spring thunderstorms but may occur at any time of year. Hail is formed in huge thunderhead (cumulonimbus) clouds (Munez, 2000). During days when the soil is heated by the sun, the air near the ground also is heated.
Most hail is relatively small, measuring fewer than 2 inches in diameter. However, even small hail is capable of causing a great deal of damage, owing in large part to the fact that it falls as fast as 90 miles per hour. According to the National Oceanic and Atmospheric Administration, a hail storm that occurred on April 10 in 2001 in Kansas City caused roughly $2 billion in damage.