BackgroundHomonymous hemianopsia (HH) corresponds to vision loss in one hemi-field secondary to retro-chiasmal injury. Patients with HH experience difficulties in scanning and orientation in their environment. Near vision daily activities such as reading can also be impaired. There is an unmet need for standardized vision rehabilitation protocols for HH. We investigated the effectiveness of biofeedback training (BT), used for vision rehabilitation in patients with central vision loss, in individuals with HH.MethodsIn this prospective pilot pre/post study, 12 participants, with HH consecutive to brain injury, performed 5 weekly BT sessions for 20 min each under supervision using the Macular Integrity Assessment microperimeter. BT consisted of relocation of the retinal locus 1–4° toward the blind hemi-field. Outcomes measured post-BT were paracentral retinal sensitivity, visual acuity (near vision), fixation stability, contrast sensitivity, reading speed, and visual functioning questionnaire. Statistical analysis was performed using Bayesian paired t-tests.ResultsParacentral retinal sensitivity significantly increased by 2.7 ± 0.9 dB in the treated eye in 9/11 of the participants. Significant improvements with medium-to-large effect size were observed for fixation stability (8/12 participants), contrast sensitivity (6/12 participants) and near vision visual acuity (10/12 participants). Reading speed increased by 32.5 ± 32.4 words per minute in 10/11 participants. Quality of ...
Today's words:
ICICLE
FREEDOM
A fair impression of the afternoon. First feeling discouraged, stymied, frozen, stuck in bed. ICICLE.Then PT arrives and we get my mom walking (haltingly) out of the bedroom and to her living room recliner. That's when she sees FREEDOM. Small step forward. Later, tonight's Wingmom* and I get her back to bed.
#Hallucinations #CBS #CharlesBonnetSyndrome #VisualReleaseSyndrome #MacularDegeneration #Stroke #Caregiving #ElderCare #Hemianopsia
*https://www.wingmomde.com/
DaisyDaisy
Paula Gordon
The vOICe vision BCI 🧠🇪🇺