Hyperopia one of the more common eye conditions is due to a shortening of the eye ball. This results in what is commonly known as Farsightedness. Using the above chart it is easy to visualize what happens. In a hyperopic eye a far object can be focused on the Retina with accommodation (figure G). However, a close image (figure H), can not be brought into focus even with accommodation. The objects focal plane is behind the Retina. This can be easily fixed with a concave Lens. With the concave Lens a far object can still be brought into focus, but accommodation is not needed (figure I). A near object can also be brought into focus with accommodation (figure J).
The convex Lens normalizes a hyperoptic eye.
Note: Use the mouse pointer on the above figures to see key points.
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