Exploration of dynamic text presentations in bilateral central vision loss.

Purpose: Dynamic text presentation methods may improve reading ability in patients with central vision loss (CVL) by eliminating the need for accurate eye movements. We compared rapid serial visual presentation (RSVP) and horizontal scrolling text presentation (scrolling) on reading rate and reading acuity in CVL observers and normally-sighted controls with simulated CVL (simCVL).

Methods: CVL observers' (n = 11) central scotomas and preferred retinal loci (PRL) for each eye were determined with MAIA microperimetry and fixation analysis.

Effects of Task on Reading Performance Estimates.

Reading is a primary problem for low vision patients and a common functional endpoint for eye disease. However, there is limited agreement on reading assessment methods for clinical outcomes. Many clinical reading tests lack standardized materials for repeated testing and cannot be self-administered, which limit their use for vision rehabilitation monitoring and remote assessment.

Performance of Real-world Functional Tasks Using an Updated Oral Electronic Vision Device in Persons Blinded by Trauma.

Unlabelled: There is an immediate need for noninvasive therapies to improve the functional abilities of persons blinded by traumatic injury. The BrainPort Vision Pro, an updated hands-free oral electronic vision device, enables perception of visual information using the tongue as a substitute for the eye.

Purpose: The purpose of this study was to evaluate the impact of the BrainPort Vision Pro on real-world functional task performance in persons who are profoundly blind (light perception or worse) due to traumatic injury (ocular or cortical).

Comparisons of Two Microperimeters: The Clinical Value of an Extended Stimulus Range.

Significance: Fundus-guided perimetry is a common clinical tool used to measure visual field sensitivities. Comparisons between perimeters are often made despite relative differences in hardware parameters. We directly compared two perimeters using Weber contrast, which allowed us to assess the clinical gain associated with the extended stimulus range of the macular integrity assessment (MAIA).

Effects of Lighting on Reading Speed as a Function of Letter Size.

Objective: We sought to determine under what conditions brighter lighting improves reading performance.

Method: Thirteen participants with typical sight and 9 participants with age-related macular degeneration (AMD) read sentences ranging from 0.0 to 1.