Wiktionary
infacility
n. (context medicine English) The inability to quickly adjust one’s focus when looking from near to far (or the converse).
Usage examples of "infacility".
He was acutely aware of his infacility as he remarked, "I gather you don't think we're in any great danger on this trip.
He was acutely aware of his infacility as he remarked, “I gather you don’t think we’re in any great danger on this trip.