Keratoconus is a common corneal condition characterized by progressive forward bulging of the cornea leading to thinning of the cornea. It is typically diagnosed in the patient's adolescent years. The condition can cause substantial distortion of vision with multiple images due to high astigmatism (cylinder power). We offer complete Keratoconus care which includes an earliest possible diagnosis and monitoring of progression, possible arrest of progression with Collagen Crosslinking (UVX/C3R/CXL), visual restoration with contact lens and corneal transplant surgery for very advanced cases.
At dristhiCONE eye care, we believe in making the earliest possible diagnosis so as to offer more options of management to our patients. The centre is equipped with latest and advanced diagnostic modalities to capture the earliest variations in the corneal surface and analyze it in the form of colored images. Repeated scans at time intervals help analyze the rate of progression, if any.
Keratoconus is characterized by thinning and progressive corneal protrusion. Most of the treatment modalities help improve vision but none halts the progression of the disease. In collagen crosslinking, riboflavin eye drops are instilled along with usage of ultraviolet-A light to make the cornea stronger and halt or slow the progression. This is the only treatment option available to strengthen the corneal fibres. The surgery is done without injection and under the effect of anaesthetic drops. This has shown to recover and preserve some of the cornea's mechanical strength, stabilize the keratoconus and occasionally decrease the astigmatism marginally.
Spectacles or soft contact lenses suffice to correct for astigmatism in keratoconus only in the early stages. As the condition progresses, the corneal shape changes and the patient then requires one of the different kinds of specialized contact lens for keratoconus. We offer a variety of contact lens options for our patients. They can choose from either rigid gas permeable (RGP) lenses, Rose-K lenses or Scleral lenses, depending on the comfort and the severity of the keratoconus.
For patients with advanced disease with an unappropriate contact lens fitting, we have the option of corneal transplant surgery. We specialize to replace the cornea either selectively (Deep Anterior Lamellar Keratoplasty, DALK) or totally (Penetrating Keratoplasty, PKP), the choice of which depends on the severity of the disease. The visual rehabilitation post-surgery is usually good with keratoconus surgery offering a 10 year graft survival in excess of 95%.
Note for the patients: It is for the patient and the surgeon to choose a treatment, best suited to the patient from a variety of options. Keratoplasty should ideally be delayed until last resort.