Carl Soehne
Founder of Best Eyesight
Story
Best Eyesight started as a personal project to document experiments with myopia. Like many people, I developed nearsightedness during school years and became curious about whether it could be influenced through behavioral changes and visual habits.
Instead of just reading about theories, I decided to measure and document everything. I have access to professional biometry devices – the same equipment optometrists use to measure axial eye length with extreme precision (±0.01mm). This allows tracking actual changes in eye length, not just subjective vision or prescription changes.
This website shares what I learn and provides tools that might help others who are interested in understanding and tracking their own vision.
Eye Length Log
Below is actual eye length data spanning almost 3 years, measured with professional biometry devices.
📊 Axial Length Over Time
36 measurements from April 2023 to January 2026
Comparing 2023 vs 2025-26
| Period | Right Eye (OD) | Left Eye (OS) | Device |
|---|---|---|---|
| 2023 (10 measurements) | 25.08 mm avg | 24.43 mm avg | Haag-Streit |
| 2025-26 (26 measurements) | 25.07 mm avg | 24.35 mm avg | Zeiss IOLMaster |
| Change | -0.01 mm | -0.08 mm |
The right eye has remained essentially stable over the ~3 year tracking period. The left eye shows a small decrease of about 0.08mm between 2023 and 2025-26 – however, this could be due to calibration differences between the two devices rather than actual change.
Within each measurement period, the data is remarkably consistent. The variations (±0.03mm) are within normal measurement noise.