Keratoconus causes thinning and distortion of the front
of the eye (the cornea). This results in reduced vision.
The condition is present from birth but does not affect
vision until teenage years.
Keratoconus affects approximately 1 person in every 1000. The exact caus is uncertain, but a generic link seems likely, as the incidence rate is greater if a family member has been diagnosed. Often people with keratoconus suffer from seasonal allergies and asthma, and associated rubbing of the eyes can make the condition worse.
Diagnois of keratoconus is confirmed after symptoms of distorted or reduced vision are linked with characteristic findings by examination of the cornea.
Because every person’s visual needs are different, The Keratoconus Care Clinic aims to tailor appropriate individual treatment to stabilise vision. Regular monitoring using state of the art equipment is required to ensure treatment is instigated at appropriate stages of the condition
Often glasses help in the early stages, but may need changing frequently. As the condition progresses, even with the best glasses prescription, vision may be distorted and blurry as the lenses may vary significantly between the two eyes.
Soft contact lenses may not improve vision adequately. Rigid contact lenses are often a better option.
Riboflavin and Cross-Linking
This safe new treatment stabilises vision and delays initial progression of the condition by strengthening the cornea. Glasses or contact lenses still need to be worn after the procedure.
10-25% of keratoconus cases progress to a point where vision correction with glasses or contact lenses is no longer possible. Today transplants that are not full thickness are possible, which means little risk of rejection and quicker visual recovery following surgery.
Correction of astigmatism after penetrating keratoplasty using the Acri.Comfort toric intraocular lens
Comparison of the AcrySof SA60 spherical intraocular lens and the AcrySof Toric SN60T3 intraocular lens outcomes in patients with low amounts of corneal astigmatism
Surgeon recommends toric IOL for patients with low corneal astigmatism
This technique corrects vision distortion typically caused by the irregular shaped corneal surface. Glasses or contact lenses may be prescribed. Non-Invasive
This technique records the degree and extent of deformation by mapping the corneal surface and is a benchmark for assessing progression rate.
As keratoconus progresses the cornea thins. This procedure quantifies the thickness of corneal tissue and is another benchmark for monitoring progression rate.
The Eye Health Centre
87 Wickham Tce,
Brisbane Q 4000
P (07) 3831 8606
44 South Station Rd,
P (07) 3282 4396
How can The Keratoconus Care Clinic benefit
me? As well as assisting in making the
diagnosis, the Clinic can monitor progression and in
conjunction with your eye health professional via regular
reports, assist you in making the best management
decision for your condition.
What is Riboflavin and cross-linking? This is an exciting new treatment for keratoconus that stiffens the cornea using Vitamin B2 (Riboflavin) and ultraviolet light (UVA 365nm) exposure. The three and five year results of the Dresden Clinical Study using human eyes, has shown arrest of progression of keratoconus in all treated eyes (Wollensak G. Crosslinking treatment of progressive keratoconus: New Hope. Current Opinion in Opthalmology 2006; 17: 356-360)
Who can benefit from this treatment?
Patients who are undergoing a reduction in vision are suitable for cross-linking treatment. It aims to HALT PROGRESSION of the condition and may delay the need for corneal transplantation. Patients continue to wear spectacles or contact lenses following the procedure. However, in advanced keratoconus other treatment alternatives may need consideration
At the Keratoconus Care Clinic we can closely monitor changes to corneal shape and thickness which are indicators to identifying patients who are suitable for this treatment