Complications include detachment of the vitreous or retina, and glaucoma. The vitreous humour is in contact with the vitreous membrane overlying the retina. The key ingredient of vitreous enamel is finely ground glass called frit. Vitreous minerals have the lustre of glass. Prehnite is brittle with an uneven fracture and a vitreous to pearly luster. This design reduces traction on the retina via the vitreous material. A vitrectomy is performed when there is a lot of blood in the vitreous. These structures are&colon; tear film, cornea, anterior chamber, pupil, lens, vitreous, and finally the retina. Vitreous enamel can be applied to most metals. The luster is usually vitreous to pearly. InSb has the appearance of dark-grey silvery metal pieces or powder with vitreous lustre. Lustre may be vitreous, greasy or silky. Individuals who are myopic or nearsighted have an increased risk of vitreous floaters. It is crucial in determining the health of the retina, optic disc, and vitreous humor. It is used to allow better examination of the lens, vitreous humor, and retina.