Reading Problems Associated With Central Nervous System (CNS) Pathologies.

Status Completed

Clinical Trial Summary

This project aims to analyse eye movements, their alterations and influence in reading performance in patients with acquired CNS diseases and compare them with people of the same age, without neurological or ocular pathology and with normal reading speed and pattern. The exploration is focused on the oculomotor system in patients with CNS diseases, even without involvement of the primary visual pathway, and reveals more involvement than the one obtained by a simple ophthalmological examination.

Clinical Trial Description

The following protocol will be applied: Neuropsychological function Clock Test- Clock Drawing, whose score corresponds to a scale of 1 to 6, from perfect organization to severe disorder respectively, with a cognitive deficit being a result greater than 3. This test is used to detect signs of heminegligence in addition to the Line Bisection Test. It will consider the displacement of the central mark to the right side as a positive sign. Mini-Cognitive Exam, whose cut-off score corresponds to 23 out of the 30 total, equal to or less than this figure, would indicate the presence of a cognitive deficit. Far and near Best corrected visual acuity Primary gaze position Cover test (far and near) Extrinsic ocular motility Nystagmus presence Intrinsic ocular motility Biomicroscopy of the anterior pole Computerized visual field 30-2 Intraocular pressure Ocular fundus examination Records with Tobii Pro Nano Hardware Package eye-tracking system and Tobii Pro Lab - Full Edition software. Reading performance assessment: International Reading Speed Texts (IReST) Attentional questionnaire based on the IReST, two simple answer questions (one word) will be formulated for each text, at the end of the reading to check the reading comprehension of the patient Evaluation of the speed and quality of horizontal and vertical reading: Test DEM (Developmental Eye Movement). Eye-tracking test: with an animation of a moving circle. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04937725
Study type	Observational
Source	Instituto Universitario de Oftalmobiología Aplicada (Institute of Applied Ophthalmobiology) - IOBA
Contact
Status	Completed
Phase
Start date	June 1, 2021
Completion date	November 30, 2022

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.