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.
exists and is an alternate of . When cold weather hits an area of dense cloud cover, rain occurs (obviously). However, if strong wind blows the rain back upwards, it can freeze, and then fall as hail. So if a cold front comes through an area of cloud cover, and the wind is high, hail is likely to fall.