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Ferrara Ring

Ferrara ring (Intrastromal corneal ring segment) is a type of ring used to supplement the cornea. It is produced from polymethyl methacrylate, which is the same material used for artificial eye lenses in cataract surgery.

That surgery was initiated by Dr Paula Ferrara in 1996 to decrease refraction issues by correcting curvature of the cornea for patients suffering from specific eye diseases.

Ferrara ring surgery offers a full range of benefits:

  • Stronger structure of the cornea
  • Reduced myopia. Slow down of its evolution
  • Surgery avoiding the centre of cornea, which remains as clear as before surgery.
  • Minimally invasive (1 mm incision), secured and reversible surgery
  • Different ring sizes (adjustable procedure)
  • No anesthesia, stitches, nor in-patient required
  • Quick healing recover

Who can be candidate?

General Requirements

     Rutnin-Gimbel ophthalmologists strictly apply Rutnin’s ethics in eye surgery and make sure first that patient meets following general conditions, whatever the treatment could be:

  • 20 year old minimum
  • In good health overall
  • Good eyes condition (no eye disease)
  • No pregnancy, no breast feeding
  • Additionally, candidates for Ferrara ring surgery must meet the following specific conditions:

    • No auto-immune disease such as Rheumatoid Arthritis, SLE (Systemic Lupus Erythematosus)
    • No scarring cornea , no severe corneal distension

Candidates for Ferrara ring(s)

     Patients with the following eye issues can be candidates, if all other conditions are met and confirmed by Rutnin-Gimbel ophthalmologist :

  • Corneal bulging disease (Keratoconus)
  • Pellucid Marginal Degeneration
  • Post-LASIK Ectasia
  • People with high astigmatism (High Regular Astigmatism)
  • The initial curvature of the cornea is within the criteria suitable for surgery.