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• Slit lamp examination of the corneal surface
• Corneal topography where a map of the curve [link widoczny dla zalogowanych] of the cornea is created.
•Pachymetry is a painless test that may be [link widoczny dla zalogowanych] done when the condition is advanced and [link widoczny dla zalogowanych] the cornea is thinner at the point of the cone.
Keratoconus may be found using the following tests:
Topography Guided Custom Ablation followed by Cross-linking has also been very successful in treating the high disparity between the corneal surface and the height of the cone. By reducing the height of the cone through this very specific laser treatment, better acuity of vision has been obtained in many cases after the cross- linking has been completed.
Keratoconus causes changes in the structure of the corneal tissue at the front of the eye. As the [link widoczny dla zalogowanych] cornea accounts for over 70% of the focussing capacity of the eye then any distortion in the shape of the cornea has a profound effect on vision. Keratoconus brings about a thinning of the cornea tissues, leading to an irregular cone shape appearing on the surface.
Treatment for keratoconus
It is important to diagnose keratoconus at an early stage so that the condition is monitored and any appropriate treatment undertaken at the optimum time [link widoczny dla zalogowanych] to preserve vision and the corneal [link widoczny dla zalogowanych] tissue [link widoczny dla zalogowanych] itself.
• Eyeglasses or soft contact lenses can be used in the early stages to correct astigmatism and mild near-sightedness caused by the keratoconus.
• Rigid gas-permeable contact lenses can be used to correct vision when the disorder progresses and the cornea becomes thinner and changes shape. The RGP lenses should be fitted carefully and checked regularly [link widoczny dla zalogowanych] since vision may change significantly with the keratoconus.
Symptoms that indicate that you may be suffering from Keratoconus are:
As the keratoconus condition progresses, it can take months or years to develop the typical bulge on the front of the eye. Others experience a rapid deterioration of vision within months where glasses and contacts have to be repeatedly changed to cope with the changing vision.
A Corneal transplant may be needed in cases where the keratoconus has left the cornea very thin and likely to burst. Recovery from a corneal transplant is measured in months and years [link widoczny dla zalogowanych] and in some cases there is rejection of the tissue and the operation may need to be repeated.
Studies show that keratoconus cannot be prevented. It is therefore essential that [link widoczny dla zalogowanych] dramatic, tiny cracks may begin to appear in the cornea due the the pressure and strain of [link widoczny dla zalogowanych] the changes on the tissue. This may well cause severe swelling and discomfort for a number of months and can lead to corneal scarring too.
Testing for Keratoconus
When suffering from keratoconus, the following treatments may be undertaken:
Patients may experience a blurring of vision with a greater sensitivity to light or glare in the [link widoczny dla zalogowanych] early stages of keratoconus. Patients first experience short-sightedness in their early or late teens and [link widoczny dla zalogowanych] again the progression can renew in the late 20’s.
Corneal Collagen Cross-linking is a well established treatment plan for keratoconus. Some clinics have [link widoczny dla zalogowanych] developed the procedure so that there is no progression of the keratoconus after the treatment.