A person with convergence insufficiency has trouble getting the eyes to work together to focus on an object, resulting in difficulty with close-up tasks. Researchers do not know what causes the ...

Long sight is corrected using a converging lens which starts to converge light rays from a nearby object before they enter the eye. Converging (convex) lenses are used in reading glasses.

Plato’s Theory of Forms addresses the question of how we know that an object, such as a table, is what it is, even though we may never have seen it before and even though it might look entirely ...

1. Use Converging Verticles To Exaggerate Height. When shooting close to a building with a wide-angle lens, you can exaggerate the height of the structure with the help of converging verticals ...