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Objective Analysis of Performance of Activities of Daily Living in People With Central Field Loss

journal contribution
posted on 2023-07-26, 13:43 authored by Shahina Pardhan, Keziah Latham, Daryl R. Tabrett, Matthew A. Timmis
Purpose: People with central visual field loss (CFL) adopt various strategies to complete activities of daily living (ADL). Using objective movement analysis, we compared how three ADLs were completed by people with CFL compared with age-matched, visually healthy individuals. Methods: Fourteen participants with CFL (age 81 ± 10 years) and 10 age-matched, visually healthy (age 75 ± 5 years) participated. Three ADLs were assessed: pick up food from a plate, pour liquid from a bottle, and insert a key in a lock. Participants with CFL completed each ADL habitually (as they would in their home). Data were compared with visually healthy participants who were asked to complete the tasks as they would normally, but under specified experimental conditions. Movement kinematics were compared using three-dimension motion analysis (Vicon). Visual functions (distance and near acuities, contrast sensitivity, visual fields) were recorded. Results: All CFL participants were able to complete each ADL. However, participants with CFL demonstrated significantly (P < 0.05) longer overall movement times, shorter minimum viewing distance, and, for two of the three ADL tasks, needed more online corrections in the latter part of the movement. Conclusions: Results indicate that, despite the adoption of various habitual strategies, participants with CFL still do not perform common daily living tasks as efficiently as healthy subjects. Although indices suggesting feed-forward planning are similar, they made more movement corrections and increased time for the latter portion of the action, indicating a more cautious/uncertain approach. Various kinematic indices correlated significantly to visual function parameters including visual acuity and midperipheral visual field loss.

History

Refereed

  • Yes

Volume

56

Issue number

12

Page range

7169-7178

Publication title

Investigative Ophthalmology & Visual Science

ISSN

1552-5783

Publisher

ARVO

Language

  • other

Legacy posted date

2016-02-26

Legacy Faculty/School/Department

ARCHIVED Faculty of Science & Technology (until September 2018)

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