Definition of Entropion. Entropion is the inversion, or rolling inward, of all or part of the edge of an eyelid, which causes the hair-bearing part of the lid to come into contact with the outside of the eyeball. This creates friction, irritation and discomfort and can severely damage the eye. Entropion has a strong genetic component and often is present at birth due to a hereditary abnormality in the dogâs facial structure. It is much more common in breeds with flat faces, short muzzles and heavy facial skin folds. It can also be acquired as a result of trauma, inflammation or infection and from skin laxity associated with aging. Entropion usually â but not always-occurs in both eyes.
Explore Different Types of Animation. At the broadest sense, there are 3 types of animation: 2D, 3D and Stop Motion. Any way to manipulate a sequence of images, frame by frame, is considered a Type of Animation. Animations usually fall into one of these three categories - 2D, 3D or Stopmotion. The boundaries between them are, however, blending with great speed.
One of the very first successful animated cartoons was Gertie the Dinosaur (1914) by Winsor McCay. It is considered the first example of true character animation. At first, animated cartoons were black-and-white and silent. Felix the Cat and Oswald the Lucky Rabbit are notable examples.