Or, in other words, how close a cat can see distinctively ?
For instance, it is around 25cm for an average 46 year old human.
As a reference, there are relevant articles on Wikipedia:
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According to this research seems to be 12cm.
Determined the near point of accommodation in 4 cats by measuring visual acuity at viewing distances varying from 125 to 12 cm. The near point of accommodation was taken as the closest viewing distance which just produced a decrement in grating acuity. Results show that the values obtained ranged from 25 to 36 cm and are in good agreement with physiological and optical estimates of the near point of accommodation. (24 ref) (PsycINFO Database Record (c) 2016 APA, all rights reserved)
ref: Visual acuity and the near point of accommodation in cats. Bloom, M., & Berkley, M. A. (1977). Visual acuity and the near point of accommodation in cats. Vision Research, 17(6), 723–730.