Faculty

Muriel M. Schornack, O.D.

Clinical Studies

Initial Correction Keratoconus: Scleral vs. Corneal Gas Permeable Lenses (SVGPL) Rochester, Minn.
The purpose of this study will prospectively compare visual satisfaction and ease of use between corneal gas permeable and scleral lenses for patients with mild to moderate keratoconus who are naiive to lens use.

Keratoconus is a non-inflammatory condition in which the cornea or clear front surface of the eye steepens and thins and can decrease vision. It is a progressive disease in which corneal irregularity increases and thickness decreases. The patient-reported quality of life mayvary depending upon the prescribed form of contact lens correction..

Interdisciplinary investigation of contact lens modality appropriateness in patients requiring medically necessary contact lenses using qualitative research of patient reported experiences Rochester, Minn.
The purpose of this study is to collect qualitative information about contact lens experiences for people who must wear contact lenses for medical reasons and to use this information to build a validated survey to aid practitioners when selecting the type of lenses to fit for a given patient based upon their needs and lifestyle.

Association Between Endothelial Cell Density and Corneal Swelling in Post-Penetrating Keratoplasty Scleral Contact Lens Wear Rochester, Minn.
The purpose of this study is to model the relationship between corneal swelling and cell density and determine how this relationship differs by contact lens type.
Scleral Contact Lens Fogging Study Rochester, Minn.
The purpose of this study is to quantify potential decreases in visual acuity experienced by patients who experience mid-day fogging during scleral lens wear, compare severity of subjectively reported fogging with clinical findings, and to explore the relationship between scleral lens fitting parameters and mid-day fogging.
Teleophthalmology in the Management of Glaucoma Rochester, Minn.
The purpose of this study is to determine accuracy of glaucoma progression assessment (non-progression, possible progression, or definite progression) in glaucoma patients based on images only by determining agreement between each classification from non-visit data and in-person evaluation.