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.
The severity of hail damage to a roof depends on several factors, including: Type of roofing materials, age of roofing materials, roof slope, quality of constructionâ¦. â¦as well as hail size, hail density, and hail shape and the velocity and angle of its fall.