I measured near 6 cm for left eye and 7 cm for right eye without lenses, and the far power is about 1.5 D (67 cm). This means my power of accommodation is about 15.2 D left eye and 12.8 D right eye (16.7 - 1.5 = 15.2, 14.3 - 1.5 = 12.8).
It could be measurement error, but is the 2.4 D difference in each eye a potential issue in the future? Also, it seemed to drop from about 23 D when I was 19 years old (6 years ago), so does the rapid drop mean that presbyopia is a big concern for me, even though the number still seems to be above average for a 25-year-old? Or is it just a normal rapid drop in charts like Figure 1 of this article?
I measure presbyopia using this technique: