• Primary indications: Intolerance to GP lenses, new contact lens wearers with irregular corneas, early to moderate irregular corneas, if acuity with conventional soft lenses is unsatisfactory, if the environment is unsuitable for GP wear, if a GP lens may be unstable, e.g. sport.
• Contraindications: Other ocular pathology or when satisfactory acuity cannot be attained at the initial fitting with best sphero-cylinder correction or a pinhole.