The colour of your eyes is inherited. The colour and pattern of the iris are as individuated as fingerprints. It is coated on its back with brown-black pigment. This prevents light penetrating to the back of the eye except through its centre, or pupil. This hole can change its size, dilating or contracting as the level of light requires. In bright light, or when we wish to scrutinize a near object, it contracts. In dull light, or when we wish to relax our eyes and stare in the distance, it dilates. It also becomes bigger if we are frightened or excited, and it dilates in death. Read the rest of this entry »
The eye, we have seen, is a ball with a stalk behind that conveys data to the brain. The inside of the eye has been described as consisting of the light-sensitive retinal film in the back half, and a lens called the cornea and a pupil (entry hole) in the front half. The iris or coloured part has a black pigment behind it so that the whole back part of the eye globe is in darkness. Between the pupil and the retina, suspended by fine fibres or ligaments, is the inner lens of the eye, which is made of transparent layers of cells. Read the rest of this entry »
Admittedly, eyeglasses do have a few advantages over contacts. They’re easy to get used to and easy to care for, but if you’ve ever worn glasses, you’re all too familiar with these annoying disadvantages:
They May Not Be Flattering. Behind thick glasses, which correct large refractive errors, eyes look abnormally big or small. Glasses also tend to hide the natural beauty of the eyes, one of the most important and communicative features of the face. In spite of designer frames (which go out of style) most people look better without glasses. Read the rest of this entry »
