"low visual acuity" is a valid and usable phrase in written English.
You can use it to refer to visual impairment, such as a person not being able to see things far away or close up. For example, "The optometrist diagnosed my friend with low visual acuity, which limited her ability to drive at night."
Only parents of young boys surviving RB reported lower on "autonomy" than the reference group, and parents of low visual acuity and blind RB survivors reported higher on "autonomy" than parents of visually unimpaired survivors.
The players have a very low visual acuity or no light perception.
The low visual acuity obtained in night, or rod, vision is now understandable.
In the low-vision condition, participants made smaller steps while approaching the low-contrast stairs and descended this stairway more slowly (p > 0.05) than in the other conditions, suggesting that high-contrast treads can compensate for the effects of low visual acuity.
People with very low visual acuity (worse than 20/100 with corrective lenses) are considered legally blind.
The orbits are as large (in absolute size) as those in smaller living indriids, which suggests low visual acuity.
CCTVs are typically prescribed to patients with very low visual acuities, i.e. <0.05 Snellen[ 5].
From these characteristics, it is evident that the eyes that were selected had moderately low visual acuities, severe macular thickening, presence of other co-existing pathologies such as epiretinal membranes and controlled glaucoma.> At the 3 month time-point, mean change in BCVA for all patients was +6.4 ETDRS letters (SD: ±7.2; range: -11 to +25).
This study cross-validated high and low contrast visual acuity (VA) data measured using traditional paper charts and new computerised technology applying the chart design of Bailey and Lovie.
Cumulative risks of visual loss were studied with Kaplan Meier product-limit survival analysis, with low vision (visual acuity < 0.5) or legal blindness (visual acuity ≤0.1) as outcomes.
In addition, the relationship of low baseline visual acuity and pre-existing conditions reducing visual acuity was described in all centre cohorts.
