The phrase "have poor vision" is grammatically correct and can be used in written English.
It is typically used to describe someone who has difficulty seeing or has a visual impairment. Example: "The elderly man had poor vision and had to wear thick glasses to read."
Some have poor vision or impaired cognition or can't use computers.
Rodents like rats and mice are nocturnal and have poor vision, relying on whiskers to navigate their world.
For example, rats have poor vision and rely on taste and smell to find food at night.
Students in grades 4-6 werewere found to have poor vision were offered glasses at no cost.A year after the programme was introduced, the academic performance of the students in the two groups was measured.
Ms. McLaughlin said the Bureau of Engraving and Printing, the Treasury agency that makes paper money, had already contracted with a research firm to study ways to help those who are blind or have poor vision.
Bats have poor vision & navigate by a built-in radar system; as they fly, they squeak and the sound waves of the squeaks bounce back from whatever obstacles may lie ahead, giving the bat time to duck.
To support it, she showed that the rare primates that have not encountered venomous snakes in the course of their evolution, such as lemurs in Madagascar, have poorer vision than those that evolved alongside snakes.
There is a preponderance of evidence that shows infants fed unfortified formula have poorer vision and lower IQs than infants fed formula fortified with DHA [ 113].
It has not been made clear whether dogs that either lack tapetal area in the fundus or are subalbinotic have poorer vision overall or poorer night vision compared to dogs with tapetal area [ 11].
While the overall outcomes of cataract surgery are excellent, patients with diabetes may have poorer vision outcomes than those without diabetes, and the worst outcomes may occur in operated eyes with active proliferative retinopathy (29) and/or preexisting macular edema.
