A hyperopic person, or a person with long-sightedness, usually sees quite well. Their distance and near vision will be clear. Hypermetropia occurs for 2 reasons; either the lens system of the eye is too weak for the length, or the eye is too short for its optical power. This means that when the light enters the eye, the image is focused behind the retina.
For large amounts of long-sightedness, the eyes cannot make the extra effort that is needed to focus the light on the retina. This leads to symptoms of soreness, tired eyes, headaches, poor concentration with reading and computer work, and also some blurring of words when reading for long periods of time. Glasses are generally given to help with strain and effort when reading or on the computer, but can also be useful for distance tasks, like driving long distances.
The Perfect Eye
The Hyperopic Eye
Hypermetropia in Children
Hyperopia can commonly affect children. A low degree of hyperopia is expected in children, but occasionally, it may be present in large amounts, even in very young children. This can affect one eye, or both eyes. If these conditions are not detected it can lead to long-term, or even permanent, vision difficulties which may otherwise be readily treatable. These conditions include amblyopia or a ‘lazy eye’, where one eye is significantly weaker than the other, and strabismus or ‘squint’ where one eye turns in or out. Treatment options range from spectacle wear, to patching the stronger eye, to eye exercises
Unfortunately, often children do not know that they can’t see well and may pass simple vision tests, so early comprehensive testing is vital for early detection and treatment.
Hypermetropia in Older Adults
As we get older, the lens inside the eye stiffens and cannot be changed to focus the light on the retina. This can cause blurred vision in an eye which previously saw well. At this time glasses are prescribed for the blurry vision and/or any discomfort in the eye.