Most people have heard of being short-sighted. Far fewer have heard the word "hyperopia" — even though long-sightedness is just as common, and in children, catching it early matters more than most people realise.
Hyperopia is the clinical name for what most people call being long-sighted or far-sighted. All three terms describe exactly the same condition, so if your optometrist mentions hyperopia, that's simply the medical word for long-sightedness. It's one of four common refractive errors, alongside myopia, astigmatism and presbyopia.
Where myopia tends to be the refractive error people talk about, hyperopia is quieter, partly because younger eyes are often able to compensate for it without glasses. That doesn't make it any less important to understand, particularly for parents, since how hyperopia is picked up and managed in early childhood can shape how well a child's vision develops.
Clear vision depends on light converging to a precise point exactly on the retina, the light-sensitive layer at the back of the eye. In hyperopia, the eyeball is a little too short for its focusing power, so that point falls behind the retina rather than on it. The retina receives an image before it has fully come into focus, which is what produces the blur.
This is essentially the mirror image of myopia. A myopic eye is too long and focuses light in front of the retina; a hyperopic eye is too short and focuses light behind it. Both are refractive errors caused by a mismatch between the eye's length and its focusing power, just in opposite directions.
Because hyperopia and myopia are opposite errors, they don't behave the same way, and they don't carry the same long-term risk.
Myopia comes from an eye that's too long. Hyperopia comes from an eye that's too short. The underlying anatomy is essentially opposite.
High myopia is linked to a stretched, thinned retina and higher lifetime risk of certain eye conditions. Hyperopia doesn't carry that same pattern of risk.
Myopia often progresses steadily as a child's eye grows. Hyperopia doesn't progress in the same true sense, for reasons explained below.
Focusing at any distance takes extra effort in a hyperopic eye. That margin shrinks with age, so reading glasses are often needed sooner.
Not in the way myopia does. Myopia progression is driven by the eyeball itself continuing to grow longer. Hyperopia isn't driven by the same ongoing growth process, so it doesn't progress in a true sense the way myopia can.
What can happen is that a hyperopic prescription appears to increase, without the eye actually changing shape. This is because some hyperopia is latent: the eye's natural focusing muscle is doing part of the work of compensating for it, effectively hiding some of the true prescription. As that natural focusing ability changes with age, especially through the late teens and into adulthood, previously hidden hyperopia can become unmasked. The result looks like the prescription is getting stronger, when in reality it was there all along and is only now becoming measurable.
Hyperopia may not carry the same eye disease risk as high myopia, but in young children it carries a different, equally important risk: the risk to normal visual development.
Significant hyperopia, particularly when one eye is noticeably more long-sighted than the other, increases the risk of amblyopia, commonly known as a lazy eye. The brain starts to favour the eye giving the clearer image, and the other eye's vision fails to develop properly if left uncorrected.
High hyperopia can cause the eyes to over-focus and over-converge to compensate, which in some children leads to a turned eye, or strabismus. This is another reason we watch for the combination of hyperopia and any sign of an eye turn.
Children have such a strong natural focusing ability that a standard eye test can under-estimate their true hyperopia, since their eyes compensate for it during the test itself. Cycloplegic eye drops temporarily relax that focusing ability, letting us measure the full, true extent of the hyperopia. This is especially important where we see signs of a lazy eye, a turned eye, or a meaningful difference between the two eyes.
The starting point for a child with significant hyperopia is almost always glasses, giving both eyes a clear, focused image to develop with. If amblyopia has already set in by the time it's diagnosed, glasses alone often aren't enough to fully resolve it. In that situation, additional amblyopia therapy, most commonly eye patching of the stronger eye, is used alongside glasses to actively encourage the weaker eye to develop and catch up.
Because visual development has a limited window in early childhood, earlier diagnosis generally means a better response to treatment. Read more about how we approach these checks on our Children's Eye Care page.
For adults, correcting hyperopia means refocusing light forward onto the retina instead of behind it. We offer the same three approaches as for myopia.
The simplest and most flexible option. A correctly prescribed lens brings the focus point forward onto the retina, sharpening vision as soon as they're worn. See our eyewear collection.
Contact lenses correct hyperopia the same way glasses do, sitting directly on the eye rather than in a frame, which suits active lifestyles and personal preference. Explore our contact lens options.
OrthoK is best known as a myopia treatment, but it's a technique many patients don't realise can also be customised to correct hyperopia. Instead of gently flattening the cornea overnight as it does for myopia, a hyperopia OrthoK design gently steepens it, moving the focus point forward. Find out more on our OrthoK page.
Hyperopic OrthoK is fitted far less often than myopic OrthoK, largely because fewer clinics have the experience to fully customise the lens design it requires. It isn't a routine, off-the-shelf fit. With our depth of experience customising OrthoK for a wide range of prescriptions, we're able to offer this to suitable long-sighted patients who'd like clear daytime vision without glasses or daytime contact lenses, an option many people with hyperopia don't know exists.
This page is an overview. For a deeper look at any part of the hyperopia picture, start here.
How we assess children's vision, when cycloplegic drops are needed, and what to expect from your child's first eye test.
Read more →The full range of contact lens options available, from everyday soft lenses to specialty designs.
Read more →How overnight OrthoK lenses work, who's a good candidate, and how customised designs extend well beyond standard myopia fits.
Read more →See how hyperopia compares with myopia, astigmatism and presbyopia, and how each affects vision differently.
Read more →Whether it's your child's first eye test or you're exploring correction options for long-sightedness you've lived with for years, a comprehensive eye test is the place to start. We'll measure your true prescription, assess your eye health, and talk through the options that suit you.