Vitreoretinal eye surgery includes a group of procedures performed deep inside the eye's interior with lasers or conventional surgical instruments. As the name implies, this delicate surgery takes place where the gel-like vitreous and light-sensitive membrane (retina) are found.
1 If your sugar paste feels dry and cracks, feels very firm or crumbly, knead in a few teaspoons of melted shortening (vegetable fat or white margarine). 2  Alternatively, work glycerine and or a few drops of cooled boiled water into the paste to soften it and make it more elastic.
Combine quince and sugar in a large, clean heavy-based saucepan. Place on a simmer mat over low heat and cook, stirring, for 5 minutes or until sugar dissolves. Reduce heat to very low and cook, stirring occasionally, for 3 1/2 hours or until mixture is ruby red, thick and leaves the side of pan.ombine quince and sugar in a large, clean heavy-based saucepan. Place on a simmer mat over low heat and cook, stirring, for 5 minutes or until sugar dissolves. Reduce heat to very low and cook, stirring occasionally, for 3 1/2 hours or until mixture is ruby red, thick and leaves the side of pan.