N/A
N=100
Evaluation of a Night Spectacle Correction Concerning an Improvement of Mesopic Vision Quality
Myopia-Night Blindness
Bottom Line
View on ClinicalTrials.gov: NCT02965534 ↗Enrolled (actual)
100
Serious AEs
0.0%
Results posted
Feb 2019
Primary outcome: Primary: Night Myopia — -0.30; -0.32 D
Study Design & Population
- Study type
- Interventional
- Phase
- N/A
- Interventions
- Spectacle/Glasses (Device)
- Age
- Adult · 18+ yrs
- Sex
- All
- Sponsor
- University of Applied Sciences Jena
- Primary completion
- Feb 2016
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Night Myopia |
-0.30; -0.32 | — |
| SECONDARY Mesopic Visual Acuity Improvement |
0.1; 0.1; 0.1 | — |
| SECONDARY Subjective Vision Comfort in Dark Light Conditions |
60; 73 | — |
| SECONDARY Subjective Vision Sharpness in Dark Light Conditions |
59; 73 | — |
| SECONDARY Subjective Glare Sensitivity in Dark Light Conditions |
48; 37 | — |
| SECONDARY Subjective Driving Safety in Dark Light Conditions |
57; 73 | — |
Summary
Reduced quality of vision and glare in twilight or night are frequently mentioned complaints within the optometric examination. A reason for these problems could be a myopic refractive shift in dark light conditions, commonly known as night myopia or twilight myopia.
The aim of this study was to investigate whether quality of vision in twilight or night could be improved by a spectacle correction optimized for mesopic light conditions. Moreover, objective refraction in large pupils measured by aberrometry was compared to subjective mesopic refraction.
Eligibility Criteria
Inclusion Criteria
- Visual Acuity at least 0.8 (5/6)
- Binocular Vision
Exclusion Criteria
- refraction more than sph +/- 6 D and cyl 2 D
- Difference between habitual correction and actual refraction more than 0.5 D
- Medication with an influence on visual system
- Disease or eye disease with an effect on the visual system
- pregnancy or other hormonal variances
- influence of drugs
- mental handicap
Data sourced from ClinicalTrials.gov (NCT02965534). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.