RA
1
1
Mild severity
· Ophthalmology
Astigmatism
Irregular corneal curve · Blur at all distances
The cornea is shaped more like a rugby ball than a football, causing blur at all distances. Easily corrected with lenses or surgery.
At a glance
- Prevalence
- Common, often with myopia
- Typical age
- Any age
- Outlook
- Correctable
- System
- Vision
Reviewed by a verified Ophthalmology doctor
What causes it
Causes
- Inherited corneal shape
- Eye injury or surgery
- Keratoconus
- Eye rubbing
How it feels
Symptoms & effects
- Blurred / distorted vision
- Headache after reading
- Squinting
- Eye strain
- Trouble at night driving
How it’s treated
Treatment & cure
- Glasses (toric / cylindrical)
- Toric contact lenses
- Refractive surgery (LASIK, SMILE)
- Treat keratoconus with cross-linking
Staying ahead
Prevention
- Annual eye check
- Avoid eye rubbing
- Treat keratoconus early
Do’s
- Avoid rubbing eyes
- Annual eye exam
- Wear correction consistently
- Use anti-glare night-driving glasses
Don’ts
- Self-buy round-correction glasses
- Wear lenses overnight
- Drive at night without correction
- Ignore worsening clarity in young people
See a doctor immediately if
Symptoms are sudden or severe, getting worse despite home care, or interfering with sleep, work or daily life. Don’t self-diagnose from the internet — book a verified clinician below.
Top specialists
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Disclaimer ·
This article is educational and reviewed by clinicians, but it cannot replace an in-person assessment.
Medication doses, prevention advice and treatment choices vary by person. Always confirm with a doctor before acting on anything here.