Astigmatism eye tests in Reservoir
Astigmatism: clearer vision at near and far
Astigmatism is a common focusing condition that can make detail look blurred or distorted at both distance and near. Some people notice headaches, tired eyes, squinting or glare at night; others have mild astigmatism and do not notice a problem until an eye test.
At Reservoir Spectacles, we can measure how each eye focuses, check whether astigmatism is affecting your vision and explain whether glasses, contact lenses or no correction is the most sensible option for your needs.
How the eye focuses light
What is astigmatism?
Light needs to focus accurately on the retina at the back of the eye for vision to look clear. With astigmatism, the cornea at the front of the eye or the natural lens inside the eye has a different curve in one direction than another. Light therefore does not focus at one sharp point.
Astigmatism is a refractive error, not an eye infection. It is common and often occurs alongside short-sightedness or long-sightedness. The amount and direction can differ between the two eyes and can change over time.
People sometimes compare an astigmatic cornea with a rugby ball rather than a soccer ball. This is a useful shorthand, but an eye examination—not the appearance of the eye in a mirror—is needed to measure it.
What people may notice
Possible signs of astigmatism
Astigmatism can affect people differently, and the symptoms are not unique to this prescription finding.
Blurred or distorted detail
Near or distant detail may look shadowed, stretched or difficult to bring into focus.
Visual effort
Squinting, tired or sore eyes and headaches can become noticeable during sustained visual tasks.
Night-time glare
Halos, glare or reduced clarity can be more apparent when driving or viewing lights at night.
An outdated prescription, digital eye strain, migraine and other eye or health conditions can feel similar, so symptoms should not be self-diagnosed.
Related prescription terms
Astigmatism, short-sightedness and long-sightedness
The terms describe different parts of a prescription.
Short-sightedness
Short-sightedness, or myopia, usually makes distant detail blurred. Astigmatism may be present at the same time. For children and teenagers, read our guide to childhood myopia.
Long-sightedness
Long-sightedness, or hyperopia, can make close work difficult or tiring, although some younger people can compensate by focusing harder. It can occur with astigmatism.
Presbyopia
Presbyopia is the gradual age-related loss of near focusing ability that commonly becomes noticeable after 40. It is separate from astigmatism, although one pair of lenses can correct both. See our reading-glasses and presbyopia guide.
A complete measurement
What may be checked at an eye examination?
An examination is tailored to your symptoms, age and visual tasks. It may include:
Vision at distance and near
Checking what each eye can see and whether blur changes with different lenses.
Refraction
Comparing lens powers to determine the combination of sphere, cylinder and axis that provides useful, comfortable vision. The cylinder and axis describe the astigmatism component of a glasses prescription.
Corneal measurements when relevant
Measuring or mapping the front curve of the eye may be useful for contact-lens fitting, changing or irregular astigmatism, and other clinical questions.
Eye health
Examining the eyes to check whether another condition may be contributing to blur, glare or a change in prescription.
Learn more about our comprehensive eye tests.
Correction is individual
Does every astigmatism need glasses?
No. A small amount may not interfere with daily life, and correction is based on the complete prescription, symptoms and visual tasks—not a number in isolation.
Glasses may be recommended for full-time or task-specific use when correction gives a meaningful improvement in clarity or comfort. The prescription should balance sharp vision with comfortable adaptation.
Wearing an appropriate astigmatism correction does not weaken the eyes. Equally, a mild measurement does not automatically mean that glasses are necessary.
Options matched to daily life
Vision-correction options
Glasses
Glasses are the simplest correction for many people. Astigmatism can be incorporated into single-vision, reading, occupational, multifocal and prescription-sunglass lenses. Explore our lenses and multifocal options.
Contact lenses
Soft toric contact lenses are designed to remain oriented on the eye so the astigmatism correction stays in the intended position. Other lens designs may be considered for some prescriptions or eye shapes. A proper contact-lens fitting is needed to assess vision, fit, eye health and handling.
No correction or occasional correction
Some people with mild astigmatism see comfortably without correction or use glasses only for driving, study, screens or another demanding task. The recommendation should reflect how the vision is actually used.
Give new lenses a fair start
Adjusting to a new astigmatism prescription
A new or changed cylinder correction can initially make floors, door frames or shapes feel slightly different. Most people adapt, but the experience depends on the size of the change, the frame fit, lens measurements and previous prescription.
Wear the glasses as advised and make sure the frame is sitting correctly. If vision remains uncomfortable, feels distorted, causes persistent headaches or does not improve as expected, contact us so the prescription, lens measurements and frame fit can be checked.
Children may not know what clear looks like
Astigmatism in children
Children may not realise that their vision is blurred because they have no clear comparison. Uncorrected astigmatism can interfere with clear visual input during development, and a significant difference between the eyes can contribute to amblyopia, sometimes called lazy eye.
An eye examination can determine whether correction or monitoring is appropriate. Arrange a check if a child squints, sits very close, avoids detailed work, reports headaches or has another vision concern. See our children’s eye-test information.
Know when blur is not routine
When blurred vision needs prompt care
Astigmatism usually causes stable or gradually changing blur. Arrange a routine eye examination if vision is unclear, night driving is difficult, headaches accompany visual tasks or current glasses no longer feel right.
Sudden vision loss or blur, severe eye pain, a very red eye, new flashes or floaters, a dark curtain or shadow, significant injury, chemical exposure, new double vision or eye symptoms with neurological signs should not be assumed to be astigmatism.
Call Reservoir Spectacles promptly on (03) 9460 8017 for concerning eye symptoms and see our urgent eye care guidance. Sudden major vision loss, possible stroke symptoms, penetrating injury, severe trauma or chemical exposure should be directed to an emergency department or 000.
Frequently asked questions
Is astigmatism an eye disease?
Usually, no. It is a common refractive error related to how the cornea or natural lens curves and focuses light. Irregular or changing astigmatism can sometimes require further investigation.
Can astigmatism affect both near and distance vision?
Yes. It can blur or distort detail at multiple distances, and it can occur with short-sightedness, long-sightedness or presbyopia.
Will glasses make astigmatism worse?
No. Glasses correct the way light focuses while you wear them; they do not weaken the eyes or cause astigmatism to progress.
Can contact lenses correct astigmatism?
Often, yes. Toric soft lenses and other designs can correct many prescriptions, but suitability depends on the amount of astigmatism, eye health, lens fit and visual needs.
Why does my prescription include cylinder and axis?
Cylinder describes the amount of astigmatism correction, while axis describes its orientation. Both are considered alongside the sphere power and the vision obtained during the examination.
Can astigmatism change?
It can. Small changes may occur over time. A larger, rapid or irregular change deserves assessment rather than being assumed to be a routine prescription update.
Book an astigmatism eye test in Reservoir
If detail looks blurred or distorted, night driving is less comfortable or your current glasses no longer feel right, arrange an eye examination. Bring your current glasses and describe the distances and situations in which the problem is most noticeable.
Reservoir Spectacles is at 2C Edwardes Street, Reservoir VIC 3073.