The phrase "adequate vision" is correct and usable in written English.
It can be used when discussing the sufficiency or acceptability of someone's ability to see or perceive something clearly.
Example: "In order to drive safely at night, it is essential to have adequate vision to spot potential hazards on the road."
Alternatives: "sufficient vision" or "acceptable vision".
Learning and behavior problems can result if a child does not receive adequate vision correction".
Perhaps there should be a tier system with different vision requirements for each level, allowing those who can achieve adequate vision with contact lenses to work at the smaller-sized pools and mini-pools.
However, as the stickers spread from the near sides of buses to the near and off sides of vans and minibuses around the country – vehicles with perfectly adequate vision of the road – they ended up looking like an ultimatum for cyclists to not cycle anywhere, or to do so at their own risk.
Growth factors are necessary for a mature eyeball, needed for adequate vision.
Air was insufflated through the laparoscope into the peritoneal cavity to achieve adequate vision of the abdominal cavity, and pneumoperitoneum was maintained by the tight incision.
Responses were used to create a dichotomous variable, reflecting adequate vision or poor vision.
They see a difference between being able to pass the test and having adequate color vision.
The commission requires that helmets be tested for impact resistance on special rigs, that they offer adequate peripheral vision and that their straps be sturdy, among other measures.
This bone flap's dimensions allowed adequate intraoperative vision.
The city has come far from the time, just more than a year ago, when it had entrusted the design process to a local group of insiders bereft of a vision adequate to the historical challenge before them.
"Independence, luck, persistence, some kind of strategic vision, adequate resources — usually, but not always, public resources — good governance structures, good leadership, the ability to attract good students and so on.
