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First Experience With the ICD 16.5 Mini-Scleral Lens for Optic and Therapeutic Purposes
Cyrielle Suarez1, Virginie Madariaga, Benoît Lepage
1Department of Ophthalmology (C.S., V.M., M.M., P.F., V.S., S.G., M.C., F.M.), Pierre-Paul Riquet Hospital, Toulouse University Hospital, Toulouse, France; Department of Epidemiology (B.L.), Toulouse University Hospital, Toulouse, France; and "Espace médical La Source" (R.M.), Valmont, France.
Objectives:
To evaluate the success rate, efficacy, and safety of the ICD 16.5 mini-scleral gas permeable (GP) contact lens.
Methods:
This prospective study included referred consecutive patients with irregular corneas and severe ocular surface disease (OSD) in treatment failure. All patients were fitted with the ICD 16.5 mini-scleral GP lens. Even though we had some limited experience with scleral lenses, it was our first experience with the ICD 16.5 mini-scleral GP lens. Efficacy was assessed by comparing best-corrected visual acuity (BCVA) with the mini-scleral lens to baseline BCVA. A subjective visual functioning questionnaire (comfort score, visual quality score, handling rating, and wearing time) was administered in a face-to-face structured interview.
Results:
Thirty-nine eyes of 23 patients with a mean age of 43±16 years were included. Fitting indications were keratoconus (46%), post-penetrating keratoplasty (21%), other irregular astigmatism (15%), and severe OSD (18%). Twenty-five eyes (64%) were successfully fitted with an 18-month follow-up. The mini-scleral GP lens BCVA was 0.16 logarithm of the minimum angle of resolution (logMAR; 20/25) versus a baseline BCVA of 0.44 logMAR (20/63; P<0.001). Comfort and visual quality scores were 8.5/10 and 7.5/10, respectively. No complications were detected in 96% of the eyes (95% confidence interval, 76.1%-99.4%). One eye experienced corneal graft swelling.
Conclusions:
The present findings suggest that the ICD 16.5 mini-scleral GP lens is an effective and safe alternative for managing challenging corneas in a therapeutic impasse.
