|
KMID : 1011420160210010001
|
|
Journal of Korean Ophthalmic Optics Society
2016 Volume.21 No. 1 p.1 ~ p.10
|
|
|
Changes of Visual Acuity and Visual Function in the Elderly Generation and their Subjective Satisfaction by the Use of Tinted Ophthalmic Lenses
|
|
Ryu Deok-Hyeon
Park Mi-Jung
Kim So-Ra
|
|
|
Abstract
|
|
|
Purpose: The study was aimed to suggest the most effective color of the tinted lenses by evaluating the effect of the prescription with tinted lenses on the visual quality of the elderly at the age of the sixty or more.
Methods: The visual acuity of fifty subjects at the age of sixty or more (17 males, 33 females with the averaged age of 71.0±6.3) were corrected to have the visual acuity at a far distance of 0.5 or more using a trial lens frame, and non-tinted, brown-tinted, and gray-tinted lenses were randomly applied on the trial frame. The minimum legibility and minimum separability were measured at a far distance in the aspect of the visual acuity and calculated as LogMAR and then, the visual acuity was compared. The stereopsis and contrast sensitivity were also estimated at a near distance in the aspect of the visual function. The participants’ preference for tinted lenses and their subjective symptoms of the visual perception and the movement were further surveyed.
Results: The best minimum legibility and minimum separability was shown when wearing non-tinted lenses, and brown-tinted and gray-tinted lenses were in the next. The stereopsis and the contrast sensitivity at a near distance and the visual perception was the best when wearing brown-tinted lenses. It was surveyed that the subjective discomfort was the biggest when wearing gray-tinted lenses, and brown-tinted lenses were the best in the aspect of the subjective preference.
Conclusions: As the result of this study, it was revealed that the visual acuity and visual function could be improved by the use of tinted ophthalmic lenses however, its change of visual acuity and visual function was not completely correlated with the subjective satisfaction. Therefore, the appropriate color of
ophthalmic lenses should be selected in accordance with the individual visual perception and the main vision lifestyle in
the elderly generation. From the present study, the use of non- or brown-tinted lens and brown- or gray-tinted lens can
be recommended for distance work and near work, respectively, in the elderly generation under the illumination of about
1,000 lux.
|
|
|
KEYWORD
|
|
|
Tinted ophthalmic lenses, Minimum legibility, Minimum Separability, LogMAR, Stereopsis, Contrast sensitivity, Visual perception, Subjective Satisfaction
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|