Keratoconus is a progressive eye disorder in which the cornea gradually becomes thinner and bulges outward into a cone-like shape. Thrissur Private Eye Hospitals The cornea is the clear front surface of the eye that helps focus light onto the retina.
When the cornea changes shape, it can cause blurred or distorted vision, making it difficult to see clearly.
Why Keratoconus Occurs
The exact cause of keratoconus is not fully understood. However, it is believed to result from weakening of the corneal tissue, which causes the cornea to lose its normal round shape and gradually protrude outward.
Both genetic and environmental factors may contribute to the condition.
Risk Factors
Several factors may increase the risk of developing keratoconus.
Genetics
A family history of keratoconus increases the likelihood of developing the condition.
Frequent Eye Rubbing
Chronic eye rubbing can weaken the cornea over time.
Allergic Eye Conditions
Allergies that cause itching may lead to repeated eye rubbing.
Connective Tissue Disorders
Certain medical conditions affecting connective tissue may be associated with keratoconus.
Age
Keratoconus often begins during the teenage years or early adulthood.
Symptoms of Keratoconus
Symptoms usually develop gradually and may worsen over time.
Common symptoms include:
Blurred or distorted vision
Increased sensitivity to light
Frequent changes in eyeglass prescription
Difficulty seeing clearly at night
Glare or halos around lights
Double vision in one eye
Vision may continue to worsen as the cornea becomes more irregular.
Diagnosis
Eye specialists diagnose keratoconus through a comprehensive eye examination.
Tests may include:
Visual acuity testing
Corneal topography to map the shape of the cornea
Measurement of corneal thickness
Slit-lamp examination to inspect corneal structure
Early detection is important for managing the condition effectively.
Treatment Options
Treatment depends on the severity and progression of keratoconus.
Eyeglasses or Soft Contact Lenses
Helpful in the early stages to correct vision.
Rigid Gas Permeable Contact Lenses
Provide clearer vision by creating a smooth optical surface.
Corneal Cross-Linking
A specialized procedure that strengthens corneal tissue and slows progression.
Intacs (Corneal Ring Implants)
Small rings inserted into the cornea to improve shape and vision.
Corneal Transplant
In advanced cases, replacing the damaged cornea may be necessary.
Prevention and Eye Care
Although keratoconus cannot always be prevented, certain measures may help protect the cornea:
Avoid excessive eye rubbing
Manage eye allergies effectively
Attend regular eye examinations
Seek early treatment if vision changes occur
Final Thoughts
Keratoconus is a progressive condition that affects the shape of the cornea and can significantly impact vision. Early diagnosis and modern treatments such as corneal cross-linking can slow the progression and help maintain good vision.
Regular eye checkups and proper eye care play an important role in managing keratoconus and preserving visual quality.
