New photochromic spectacle lenses improve glare discomfort and photostress recovery
Purpose: To investigate the influence of a new photochromic spectacle lens on glare discomfort (GD) and photostress recovery time (PRT) in normal healthy subjects. A subject-masked within-subject comparison was performed using the fully activated state of Transitions® Gen STM and clear control. Meth...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Results in Optics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950124001603 |
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| author | Jacob B. Harth Billy R. Hammond Cameron J. Wysocky Lisa M. Renzi-Hammond |
| author_facet | Jacob B. Harth Billy R. Hammond Cameron J. Wysocky Lisa M. Renzi-Hammond |
| author_sort | Jacob B. Harth |
| collection | DOAJ |
| description | Purpose: To investigate the influence of a new photochromic spectacle lens on glare discomfort (GD) and photostress recovery time (PRT) in normal healthy subjects. A subject-masked within-subject comparison was performed using the fully activated state of Transitions® Gen STM and clear control. Methods: 30 participants (M = 19.2 ± 1.3 years) were tested. GD was assessed both physically, by measuring palpebral fissure size, and subjectively, via a 5-point Likert scale. PRT was measured as the amount of time necessary to regain visual function after an intense (∼15 % bleach) 5-second exposure to a broadband (emulated sunlight) light stressor. Results: GD, measured both physically and subjectively was significantly reduced (p < 0.001) when participants viewed the stimulus through the test lens compared to the clear control lens. PRT was also significantly reduced when using the test lens (p < 0.001). Conclusions: These data are consistent with past findings but show that they apply to a commonly used photochromic tint. The results highlight the potential of specialized lenses to enhance visual comfort and performance in varying lighting conditions. |
| format | Article |
| id | doaj-art-57dd6c8bea114f0e87caafb542d11d03 |
| institution | DOAJ |
| issn | 2666-9501 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj-art-57dd6c8bea114f0e87caafb542d11d032025-08-20T03:12:38ZengElsevierResults in Optics2666-95012025-02-011810076310.1016/j.rio.2024.100763New photochromic spectacle lenses improve glare discomfort and photostress recoveryJacob B. Harth0Billy R. Hammond1Cameron J. Wysocky2Lisa M. Renzi-Hammond3Institute of Gerontology, College of Public Health, University of Georgia, United StatesVision Sciences Laboratory, University of Georgia, Athens, GA, United States; Corresponding author at: The University of Georgia, Athens, GA 30602, United States.Vision Sciences Laboratory, University of Georgia, Athens, GA, United StatesInstitute of Gerontology, College of Public Health, University of Georgia, United StatesPurpose: To investigate the influence of a new photochromic spectacle lens on glare discomfort (GD) and photostress recovery time (PRT) in normal healthy subjects. A subject-masked within-subject comparison was performed using the fully activated state of Transitions® Gen STM and clear control. Methods: 30 participants (M = 19.2 ± 1.3 years) were tested. GD was assessed both physically, by measuring palpebral fissure size, and subjectively, via a 5-point Likert scale. PRT was measured as the amount of time necessary to regain visual function after an intense (∼15 % bleach) 5-second exposure to a broadband (emulated sunlight) light stressor. Results: GD, measured both physically and subjectively was significantly reduced (p < 0.001) when participants viewed the stimulus through the test lens compared to the clear control lens. PRT was also significantly reduced when using the test lens (p < 0.001). Conclusions: These data are consistent with past findings but show that they apply to a commonly used photochromic tint. The results highlight the potential of specialized lenses to enhance visual comfort and performance in varying lighting conditions.http://www.sciencedirect.com/science/article/pii/S2666950124001603 |
| spellingShingle | Jacob B. Harth Billy R. Hammond Cameron J. Wysocky Lisa M. Renzi-Hammond New photochromic spectacle lenses improve glare discomfort and photostress recovery Results in Optics |
| title | New photochromic spectacle lenses improve glare discomfort and photostress recovery |
| title_full | New photochromic spectacle lenses improve glare discomfort and photostress recovery |
| title_fullStr | New photochromic spectacle lenses improve glare discomfort and photostress recovery |
| title_full_unstemmed | New photochromic spectacle lenses improve glare discomfort and photostress recovery |
| title_short | New photochromic spectacle lenses improve glare discomfort and photostress recovery |
| title_sort | new photochromic spectacle lenses improve glare discomfort and photostress recovery |
| url | http://www.sciencedirect.com/science/article/pii/S2666950124001603 |
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