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New Compact Accommodometer to Measure Accommodation Amplitude as a Biomarker
Takeshi Ide1, Kazuno Negishi, Takefumi Yamaguchi
1From the *Minamiaoyama Eye Clinic Tokyo, Tokyo; †Department of Ophthalmology, Keio University School of Medicine, Tokyo; ‡Department of Ophthalmology, Tokyo Dental College, Ichikawa General Hospital, Chiba; and §Department of Ophthalmology, Social Insurance Chukyo Hospital, Aichi, Japan.
A new compact accommodometer (CA) offers a faster, convenient method for measuring accommodative amplitude, a biomarker for aging. This device also effectively measures how lifestyle factors, like smoking, impact vision.
Area of Science:
- Ophthalmology
- Biomarkers
- Physiological optics
Background:
- Accommodation is crucial for clear vision and can be affected by aging and lifestyle.
- Conventional methods for measuring accommodative amplitude can be time-consuming.
- A novel compact accommodometer (CA) has been developed to address these limitations.
Purpose of the Study:
- To evaluate a newly designed compact accommodometer (CA).
- To compare the CA with a conventional accommodometer for measuring accommodative amplitude.
- To assess accommodation as a biomarker for aging and lifestyle factors.
Main Methods:
- An observational case series involving 114 patients.
- Measurement of accommodative amplitude using both a CA and a conventional device.
- Analysis of the effect of smoking habit on accommodative amplitude.
Main Results:
- The CA demonstrated significant speed improvements over the conventional method (190.9s vs 371.8s).
- A significant correlation was found between age and accommodative amplitude in both smokers and non-smokers.
- Smokers exhibited significantly lower accommodative amplitude compared to non-smokers.
Conclusions:
- The compact accommodometer (CA) is a viable, convenient alternative to conventional devices for measuring accommodative amplitude.
- Accommodative amplitude serves as a biomarker for aging.
- Lifestyle factors, such as smoking, demonstrably influence accommodative amplitude, measurable by the CA.
