কেরাটোকোনাস

Overview of Keratoconus

Keratoconus is a progressive eye condition where the normally round cornea thins and begins to bulge into a cone-like shape. This distortion affects the way light enters the eye, leading to blurry or distorted vision. It typically begins in the teenage years or early twenties and may progress for 10–20 years. Early diagnosis and proper management are key to preserving vision.

Types of Keratoconus

1. Forme Fruste Keratoconus: The mildest and often undiagnosed form with minimal symptoms.

2. Early Keratoconus: Noticeable changes in corneal shape but manageable with glasses or contact lenses.

3. Advanced Keratoconus: Severe corneal thinning and protrusion requiring surgical options.

4. Post-LASIK Ectasia: A rare condition resembling keratoconus, triggered after LASIK surgery.

Symptoms of Keratoconus

Blurred or distorted vision, especially at night

Increased sensitivity to light and glare

Frequent changes in eyeglass prescription

Difficulty seeing clearly with glasses

Halos around lights

Eye strain or headaches from visual distortion

Causes of Keratoconus

Genetic predisposition in many cases

Chronic eye rubbing (especially in allergy-prone individuals)

Underlying connective tissue disorders

Environmental factors like UV exposure

Hormonal changes during puberty

Complications in Keratoconus

Severe visual impairment if untreated

Scarring of the cornea in advanced stages

Inability to tolerate contact lenses

Hydrops (sudden corneal swelling due to fluid buildup)

Emotional distress due to visual challenges

Risk Factors of Keratoconus

Family history of keratoconus

Chronic allergies and habitual eye rubbing

Certain genetic conditions (e.g., Down syndrome, Ehlers-Danlos syndrome)

Asthma and eczema

Rapid puberty and hormonal shifts

Preventions of Keratoconus

Avoid excessive eye rubbing

Protect eyes from UV rays with sunglasses

Manage eye allergies properly

Regular eye exams if you have a family history

Genetic counseling in high-risk families