Premium
Effect of different lightning conditions on daily living activities of glaucoma patients
Author(s) -
Zenouda A.,
Lombardi M.,
Gutman E.,
Brasnu E.,
Hamard P.,
Sahel J.A.,
Baudouin C.,
Labbe A.
Publication year - 2016
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2016.0554
Subject(s) - photopic vision , glaucoma , medicine , visual field , visual acuity , ophthalmology , scotopic vision , glare , audiology , optometry , retinal , chemistry , organic chemistry , layer (electronics)
Purpose To determine the impact of different lightning conditions on glaucoma patient's ability to perform activities of daily living. Methods Twenty‐three glaucoma patients and 8 age‐matched control subjects were included. All glaucoma patients had a best corrected visual acuity >20/30. Best corrected visual acuity, contrast sensitivity, monocular automated Humphrey 24‐2 visual field test, and binocular visual field test were obtained from all subjects. Two tasks of daily living were evaluated: (i) Mobility performance was assessed in an artificial street (StreetLab ® ) by the time required to complete an established travel path (TP) and the number of mobility incidents (MI); (ii) Reaching‐and‐Grasping performance was evaluated on a kitchen worktop in the HomeLab ® . The movement onset time (MO) and the overall movement time (OM) for reaching‐and‐grasping the object were recorded. Trials were carried out with three lighting conditions: scotopic 2 lux, photopic 250 lux and photopic 1,500 lux. Results Glaucoma patients completed the travel path 8.8% more slowly than controls (p = 0.013). Under high luminosity, all participants completed the path 3.7% and 2.7% more quickly than under low and intermediate luminosity respectively (p < 0.01). The influence of light condition was not different between the glaucoma and control group (p = 0.16). The number of MI was not different between both groups (p = 0.65). There was no difference in average MO time between the two groups (p = 0.086) but glaucoma patients had a significantly longer OM time as compared to control subjects (p < 0.01). Low light condition increased the MO time for all subjects without difference between the two groups. Conclusions Glaucoma patients had decreased performance in mobility and motor control tasks. The influence of light condition was not different between the glaucoma and control group.