Objective Visual Acuity Estimates in Amblyopia Are More Accurate With Optotype-Based P300 Than With VEP Measurements.

Purpose: Traditional visual acuity (VA) measurements depend on subjective responses, which can be unreliable, especially with uncooperative participants. Objective measurements with visual evoked potentials (VEP) address this issue but can overestimate VA in amblyopia. This study aims to establish the P300 component of the event-related potential as an objective VA test for amblyopia and compare its performance to subjective (psychophysical) and VEP-based VA estimates.

Rapid Campimetry in glaucoma - correspondence with standard perimetry and OCT.

The Rapid Campimetry (RC), a kinetic visual field test proved to reliably detect visual field defects within the central 10° degrees, the most crucial part for visual acuity and quality of life, affected even at very early stages of glaucoma, within a short measurement epoch, ~ 1 min. This study aims to further investigate RC correspondence with standard tests in glaucoma, namely standard automated perimetry (SAP) and optical coherence tomography (OCT) within 10° of visual field (VF). For this purpose, we included 41 participants, [21 glaucoma (GLA, mean age: 65.

Navigation performance in glaucoma: virtual-reality-based assessment of path integration.

Navigation is essential for moving between locations in our daily lives. We investigated the relationship between visual impairment in glaucoma and path-integration-based navigation. Fourteen glaucoma and 15 controls underwent ophthalmological examination (including visual acuity (logMAR), visual field sensitivity (MD: mean deviation from matched reference cohort), and peripapillary retinal nerve fiber layer (pRNFL)).

Gaze behavior in open-angle glaucoma patients during visuo-cognitive-motor tasks: a cross-sectional study.

This study investigated gaze behavior during visuo-cognitive-motor tasks with a change of movement direction in glaucoma patients and healthy controls. Nineteen glaucoma patients (10 females, 9 males) and 30 healthy sighted controls (17 females, 13 males) participated in this cross-sectional study. Participants performed two visuo-cognitive-motor tasks with a change of movement direction: (i) the "Speed-Court-Test" that involved stepping on different sensors in response to a visual sign displayed on either a large or small screen (165″ and 55″, respectively); (ii) the "Trail-Walking-Test" that required walking to 15 cones labeled with numbers (1-8) or letters (A-G) in an alternately ascending order.

Effect of nystagmus on VEP-based objective visual acuity estimates.

In order to determine the effect of nystagmus on objective visual acuity (VA) estimates, we compared subjective (VA) and objective (VEP, VA) VA estimates in participants with nystagmus. For this purpose, 20 participants with nystagmus (NY) caused by idiopathic infantile nystagmus, albinism, achiasma or acquired nystagmus were recruited in this study. Estimates of BCVA (best corrected visual acuity) were determined psychophysically (VA; FrACT, Freiburg visual acuity test) and electrophysiologically (VA; EP2000) according to ISCEV (International Society of Clinical Electrophysiology of Vision) guidelines.

Treadmill-walking impairs visual function in early glaucoma and elderly controls.

Aims: Impaired vision is an additional risk factor in elderly for falls. We investigated the hypothesis that treadmill (TM) walking affects visual function in both healthy elderly and those with early-moderate visual dysfunction due to glaucoma.

Methods: Thirty healthy controls (HC) aged 64-83 years and 18 glaucoma patients (GLA) aged 62-82 years participated in this cross-sectional study.

Single- and Dual-Task Gait Performance in Patients With Open-Angle Glaucoma: A Cross-sectional Study.

Purpose: To investigate gait kinematics during single- and dual-task walking in glaucoma patients compared with healthy controls.

Methods: Nineteen glaucoma patients (10 females, 9 males) and 30 healthy controls (17 females, 13 males) participated in this cross-sectional study. Spatiotemporal gait parameters (e.