Cornea - ARVO

ARVO 2013 Annual Meeting Abstracts by Scientific Section/Group - Corneaastigmatism 60% of the time and Vision benefits 50% of the time.The health benefit of a DD contact lens for astigmatism waspresented 75% of the time. Doctors also presented conveniencebenefits and comfort benefits of a daily disposable contact lens forastigmatism 60% of the time and Vision benefits 50% of the time. 9out of 10 patients were willing to trial a DD contact lens forastigmatism based on doctor recommendation.Conclusions: This identifies a significant opportunity to fit newpatients and to upgrade more reusable contact lens wearers byproviding a strong recommendation and tying the benefits of DDcontact lenses for astigmatism to specific patient needs - whether itbe convenience, comfort, vision or health.Commercial Relationships: W L. Ball, Vistakon (E)Program Number: 5465 Poster Board Number: A0164Presentation Time: 8:30 AM - 10:15 AMVisual Correction for Irregular Corneas with Scleral LensesMuriel Schornack, Cherie B. Nau, Jeff Pyle, Sanjay V. Patel.Ophthalmology, Mayo Clinic, Rochester, MN.Purpose: Scleral rigid gas permeable lenses can optically neutralizecorneal surface irregularity in patients with primary corneal ectasia,corneal scarring, or post-surgical irregularity. In this study, wereviewed the outcomes of commercially available Jupiter sclerallenses for corneal irregularity.Methods: In a retrospective study, we identified 137 eyes of 96patients that were fit with Jupiter scleral lenses (Visionary Optics,Front Royal, VA, and Essilor Contact Lens, Inc., Dallas, TX)between June 2006 and November 2011 for primary or secondarycorneal irregularity. Specific indications for which scleral lenses wereprescribed, prior modes of optical correction, topographiccharacteristics, visual acuity prior to and after lens fitting, details ofthe fitting process, and clinical outcomes were recorded. Visualacuity with habitual correction before scleral lens wear was comparedto that with scleral lenses by using generalized estimating equationmodels to account for possible correlation between fellow eyes of thesame subject.Results: Mean age of patients was 46 years (range 11-83 years).Scleral lenses were prescribed for visual rehabilitation in patientswith keratoconus/pellucid marginal corneal degeneration (68 eyes),penetrating keratoplasty (27 eyes), post-refractive surgery (27 eyes),scarring after keratitis (7 eyes), Terrien marginal degeneration (3eyes), ocular trauma (2 eyes), monocular diplopia (2 eyes), andcongenital corneal defect (1 eye). Most patients had attempted towear corneal rigid gas permeable lenses, hybrid lenses, or piggybacklens systems prior to commencing scleral lens wear. The fittingprocess required an average of 3 visits (range 2-7), and an average of1.6 lenses (range 1-7) were ordered per eye. All patients wore lensessuccessfully at the conclusion of the fitting process. Mediansimulated steep K was 49.00 D (range 35.25-69.00 D), median flat Kwas 43.50 D (range 31.87-54.87 D), and median reference sphere was45.86 D (range 38.6-57.5 D). Median visual acuity improved from0.39 log MAR (Snellen equivalent, 20/49) with habitual correction to0.10 log MAR (Snellen equivalent, 20/25) after scleral lens wear(p