Evaluation of the three basic designs of progressive power lenses

HOYA Corporation Vision Care Section0 个研究点目标入组 120 人开始时间: 待定最近更新: 2021年10月5日

适应症

试验速览

暂无简介。

•1. Subjects should be experienced HOYA or NON-Hoya progressive power lens designs wearers who have worn their current prescription for at least the last one month.
•2. Hoya or NON-Hoya PAL wearers who have no issues about wearing a progressive power lens design with corridor length of 14mm.
•3. Age: 45 to 70 years old
•4. Best corrected monocular visual acuity (decimal) both at distance and near = 1.0;
•5. Normal binocular vision at distance & near:
•6. New prescription (found at visit #1) is in the range:
•- Spherical power: up to +/-6.00;
•- Cylindrical power: minus cylinder = 2.5D;
•- Addition: 1.50-2.50D;
•- Difference in the power (spherical equivalent) between eyes: up to 2.0D
•7. Understanding and speaking Korean to be able to answer questionnaires
•8. Giving a written consent to participate in the study

•1. First prescription for progressive lenses
•2. Prescription during visit #1 varies from previous prescription more than 0.50 D in any meridian
•3. Wearing single vision lenses with accommodative support
•4. Double vision or prismatic prescription in current glasses
•5. Known ocular disease including strabismus, any pathology, any eye surgeries that may affect visual acuity
•6. Use of systematic or ocular medications that are likely to affect vision
•7. Balance problem/vertigo problem
•8. Concurrent participation in other vision-related research

发起方

HOYA Corporation Vision Care Section