Conditions and visual concerns
Begin with a diagnosis, a symptom or a change you have noticed. These guides explain why assessment matters and how a condition may connect to services and lens options.
Information is not a diagnosis.
Similar symptoms can have different causes. An individual eye examination is needed to understand what is happening and whether medical referral is appropriate.
Myopia (short-sightedness)
Understand why distant vision may be blurred, how myopia can change during childhood and what an individual management assessment may consider.
Keratoconus
Keratoconus changes the shape of the cornea and can make vision blurred or distorted. Learn how assessment, specialist lenses and ophthalmology care may connect.
Irregular cornea
An irregular corneal surface can distort vision in ways that ordinary spectacles or soft lenses do not fully correct.
Astigmatism
Astigmatism is a common focusing difference that can affect clarity at distance and near.
Hyperopia (long-sightedness)
Hyperopia can make the eyes work harder to focus, particularly at near, although experiences vary with age and prescription.
Presbyopia and changing near vision
Presbyopia is the normal age-related reduction in the eye's ability to focus at near.
Contact-lens discomfort
Uncomfortable lenses are a reason for assessment, not something to simply tolerate or solve by extending wear.
Post-surgical corneal changes
Corneal or refractive surgery can leave a changed or irregular optical surface that needs careful assessment when vision is not meeting expectations.
Children's vision concerns
Children do not always recognise or describe a vision problem. Behaviour, school tasks and family observations can help identify when an eye examination is useful.