1. Marguerite B. McDonald, MD
Spectacle Lenses with 0.6 D “Add” Can Reduce Visual Fatigue in Pre-presbyopes
Marguerite B. McDonald, MD

2. Consultant to Essilor of America, Inc.
Financial Disclosure
Consultant to Essilor of America, Inc.

3. Purpose
Height (mm)
Pre-presbyopes who frequently perform intense visual tasks often report ocular fatigue.
This study evaluated the performance of single-vision spectacle lenses with a 0.6 D “add” for reducing visual fatigue and enhancing quality of vision and patient satisfaction in pre-presbyopes.
-1 D
+1 D

4. Methodology
Study participants were recruited via print advertisements and during office visits at two sites: the University of Alicante (Alicante, Spain) and the Institut et Centre d’Optométrie (Bures-sur-Yvette, France).
The Anti-Fatigue lenses were evaluated using questionnaires completed at dispensing and after 2 and 4 weeks of wear.

5. Patient Population 103 pre-presbyopes ages 35–43
68 had previously worn single vision lenses
35 were new to lens wear
For previous lens wearers, the Anti-Fatigue lenses provided the same distance correction (± 0.5 D) as patients’ previous lenses.

6. Overall Satisfaction
Study participants reported a high level of satisfaction with their Anti-Fatigue lenses.
94%
Not satisfied
Very satisfied
Also, 88% of wearers considered the adaptation period “Somewhat short” to “Very short,” and 86% found adaptation “Somewhat easy” to “Very easy.”

7. Satisfaction with Vision
The vast majority of study participants were satisfied with their visual comfort and quality of vision (dynamic, distance, intermediate, and near).

8. Quality of Vision for Specific Tasks
Study participants were also highly satisfied with their quality of vision for specific tasks.

9. Comparison with Previous Lenses
Overall, 78% of study participants who had previously worn single-vision lenses preferred their Anti-Fatigue lenses.
Anti-Fatigue lenses were also preferred for several components of vision.
* P<0.05, ** P<0.01, *** P<0.001

10. Reduction in Visual Fatigue
Study participants reported a reduction in visual fatigue when wearing their Anti-Fatigue lenses.
No symptom
Ratings on a 10-point scale, with 1 indicating no symptom.
* P<0.05, *** P<0.001

11. Future Lens Wear
92% of wearers said they planned to continue wearing their Anti-Fatigue lenses, either for all activities or for specific tasks.
A majority of patients said they would wear their Anti-Fatigue lenses for specific tasks, including high-precision near work, computer use, and reading/writing.

12. Conclusion
Lenses with a 0.6 D “add” can reduce visual fatigue among pre-presbyopes, enhancing visual comfort as well as dynamic, distance, intermediate, and near vision.
Among study participants, including both previous single vision lens wearers and new spectacle wearers, 87% of wearers preferred Anti-Fatigue lenses to their previous situation.