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Keratoconus: The Cone-Shaped Cornea

Keratoconus: The Cone-Shaped Cornea

April 6, 2020


Keratoconus is a condition characterized by a change in the curvature of the cornea into a cone-like shape. This condition results in poor and blurry vision. Various treatment options are available. If you also are having keratoconus, book an appointment with Keratoconus specialist in India.


Do you experience blurry vision even after wearing glasses? Probably you may suffer from keratoconus. You should take an appointment with your ophthalmologist for a precise diagnosis of your condition. Those people who have a family history of keratoconus and frequently rub their eyes probably due to ocular allergy may suffer from keratoconus.

Keratoconus is a condition in which the shape of the cornea becomes cone-like. In this condition, the front of the eye bulges and becomes thin. This results in blurry vision. The condition most commonly occurs in teenagers. Keratoconus progresses with age leading to more serious vision problems resulting in the need for a corneal transplant.

Symptoms Of Keratoconus

Keratoconus generally affects both the eyes. The symptoms may alter as the condition progresses and as the age of patient increases. In many cases, the severity of symptoms in one eye may be greater than the other. Some of the common symptoms experienced by the patient suffering from keratoconus include:

  • Clouding of vision
  • Sudden change in vision
  • Frequent change in prescription glasses.
  • Increased sensitivity to bright light.
  • The problem in driving at night
  • Distorted vision
  • Eye redness and swelling

Diagnosis Of Keratoconus

Keratoconus can be diagnosed through the following diagnostic techniques:

Keratometry: Through keratometry, the shape of the cornea is determined. In keratometry, the circle of light is focused on the cornea. This results in the determination of basic corneal shape.

Slit Lamp examination: Slit-lamp examination is done to diagnose keratoconus and various other ocular conditions. A vertical beam of light is guided on the cornea. The doctor then views the eye with the help of a low-powered microscope.

Computerized corneal mapping: The shape of the cornea is analyzed through corneal mapping. The mapping is done through advanced technology such as corneal topography and optical coherence tomography. The technique provides detailed images for precise diagnosis. Apart from the shape of the cornea, corneal mapping also helps in determining the thickness of the cornea.

Eye refraction: This technique is used to check the vision problems. The vision may be checked either through the machine or the handheld device.

Treatment Of Keratoconus

Different treatment options are available for keratoconus. The best treatment for you should be decided by the doctor based on your ocular health. Following are the different treatment options:

Lenses: Keratoconus is most commonly treated with specialty lenses. Various types of lenses are available. These include soft contact lens, hard contact lenses, piggyback lenses, and hybrid lenses. A new type of contact lens, the scleral lens, is also available for the treatment of keratoconus. It provides a clearer image and is safe as compared to traditional contact lenses.

Corneal Cross-linking: In cases where the keratoconus is progressive and leads to poor vision, corneal strengthening procedure is done to provide strength to cornea. This is done through the process of corneal crosslinking.

Surgery: Corneal inserts or intra corneal ring segments and corneal transplant surgery called DALK is done to treat advanced keratoconus.


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