Comparison of sagittal height measurements with Fourier domain profilometry and with narrow cone corneal topographer

Javier Sebastián, GOO, MSc; Razvan Ghinea, PhD; David Piñero, PhD; Javier Rojas, MSc, FAAO; Julio Ezpeleta, GOO, MSc.

Values provided by both devices are no interchangeable and clinical significant differences were observed.

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Corneoscleral junction angle in healthy eyes assessed objectively

Javier Rojas, MSc, FAAO; David Piñero, PhD; Javier Sebastián, GOO, MSc; Julio Ezpeleta, GOO, MSc; Alejandra Consejo, PhD.

The corneoscleral junction angle influences sagittal height, a key parameter for ensuring a successful lens fit, especially in large-diameter lenses.

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A theoretical approach to estimate the impact of the corneo-scleral junction angle on ocular sagittal height

Reinier Stortelder, BOptom; Javier Rojas GOO, MSc, FAAO; David P. Piñero, PhD

A theoretical model was created to calculate the tangent angle at the end of an asphere of 12 mm.

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Scientific poster by John Samssedi and Brian Tompkins on Nystagmus patients.

The Need for Speed

John Samssedi, OD, FAAO; Brian Tompkins, BSc (Hons), FCOptom, FBCLA

Both nystagmus patients showed toricity with the rule and the toricity increases as the chord length increases. As a result, the scleral lens approach for both these patients was the best approach.

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Scientific poster on incorporating a bi-elevation design for improved scleral lens centration.

Incorporating a Bi-Elevation Design for Improved Scleral Lens Centration

Germán Aparicio, OD; Lindsay A. Sicks, OD, FAAO, FIACLE, FSLS

Scleral lens centration is influenced by several factors including the corneal sagittal height, limbal shape, and scleral shape. All these factors can be assessed using corneal and scleral Profilometry.

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