When entropion occurs in both eyes, this is known as bilateral entropion.. Repeated cases of trachoma infection may cause scarring of the inner eyelid, which may cause entropion. In human cases, this condition is most common to people over 60 years of age.
A screenshot showing PowerPoint 2003's Custom Animation. PowerPoint animation is a form of animation which uses Microsoft PowerPoint and similar programs to create a game or movie. The artwork is generally created using PowerPoint's AutoShape features, and then animated slide-by-slide or by using Custom Animation. These animations can then be shared by transferring the PowerPoint file they were created in, and can be viewed with PowerPoint or Microsoft's free PowerPoint Viewer.
Look carefully at animations that others have created in their PowerPoint presentations -- when you get some free time, try to replicate them. If possible, request the original PowerPoint file and deconstruct the animation.