The Prince's relationship with Anne, Edward and Andrew has been at times loving and at times tempestuous-but, like any other family, their paths have diverged with age.omments. The baptism of Prince George last month was notable not only for a lack of royal godparents â Zara Phillips being the only one â but a lack of royalty in general. The ceremony was a tight affair, the Duke and Duchess of Cambridge having invited 22 guests, six of them from the Royal Family.
back toric contact lens A contact lens used to correct corneal astigmatism in which the surface of the lens facing the cornea is not spherical but toroidal in order to obtain a good physical fit on the cornea. To create better stability of the lens on the eye it usually incorporates a prism ballast. See ballast.
Lenses are one of the most important devices in optics. Lenses are used is many applications requiring the manipulation of light waves. Lenses work by refractinglight waves in a particular manner denoted by the construction of the lens itself. Different type of lenses will either refract light to a point, called a Focus Point, or they may cause the light waves to diverge outwards. One of the most common lens is the Plano - Convex lens, this lens has one side which is flat, and the other side which is curved like a sphere.