Central Visual Impairment Clinical Trial
Official title:
Factors Limiting Peripheral Reading
The purpose of this study is to evaluate reading performance in the visual periphery by simulating central vision loss using a computer-controlled gaze-contingent display with an eye tracker. Participants will read a page of text at a comfortable rate. Several manipulations hypothesized to improve reading will be tested, such as an inverted-text "spotlight" of a single word that follows the participant's gaze.
Participants will view paragraphs of multiple sentences of text with their central vision
blocked computationally with a "simulated scotoma." Participants will be free to move their
eyes around the page of text at a comfortable rate. The three outcomes described elsewhere
will be evaluated.
In different blocks, text will contain one or more of several dynamic assistive manipulations
that are hypothesized to enhance reading: 1) inverting the text at a given position, with
instructions for the participant to attend to that location, which simulates a "surrogate
fovea" of a patient with central vision loss. 2) horizontally expanding text to alleviate
within-word crowding. 3) highlighting the next word with a visible indicator to encourage
proper eye movements.
;
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Recruiting |
NCT05439759 -
Factors in Learning And Plasticity: Healthy Vision
|
N/A | |
| Recruiting |
NCT05454124 -
Factors in Learning And Plasticity: Macular Degeneration
|
N/A | |
| Recruiting |
NCT05456581 -
Scotoma Perimetry Oculomotor Training
|
N/A | |
| Not yet recruiting |
NCT05637385 -
Training Oculo-motor Control to Improve Vision When Using a Preferred Retinal Locus
|
N/A | |
| Completed |
NCT01691027 -
Visuomotor Rehabilitation Training for Manual Task Deficits From Macular Scotomas
|
N/A |