Regular astigmatism is a common vision condition where the cornea or lens of the eye has an irregular curvature, causing blurred or distorted vision. When it occurs bilaterally, it affects both eyes.
Causes
Generally considered to be congenital, resulting from an imperfectly shaped cornea.
Can also develop due to eye surgery, injury, or diseases affecting the eye.
Risk Factors
Family history of astigmatism.
History of eye injuries or surgeries.
Eye conditions such as keratoconus.
Symptoms
Blurred or distorted vision at any distance.
Eye strain or discomfort.
Headaches and difficulty with night vision.
Diagnosis
Comprehensive eye examination including visual acuity tests.
Keratometry or corneal topography to measure curvature of the cornea.
Refraction assessment to determine lens prescription.
Treatment Options
Glasses or Contact Lenses: Correct vision by compensating for the uneven curvature.
Refractive Surgery: Procedures such as LASIK can reshape the cornea for permanent correction.
Prognosis and Follow-Up
With proper correction, individuals can achieve good vision.
Regular eye exams are crucial to monitor any changes in vision or eye health.
Complications
Without proper correction, can lead to chronic eye strain and headaches.
Might impact tasks requiring fine vision, such as reading or driving.
Lifestyle & Prevention
No definite prevention, but regular eye check-ups can help manage or detect changes early.
Wearing protective eyewear to avoid injury.
When to Seek Professional Help
Sudden changes in vision, persistent headaches, or eye discomfort should prompt an eye examination.