The clouded lens that is removed is replaced with an individually fitted artificial lens that can result in near-perfect visual acuity — the ability to see distance.
While visual acuity (the ability to resolve static, black letters of decreasing size on a white background) is the most well-known measure of acuteness of vision, there are many measures that reflect different visual abilities; these include stereoacuity, visual acuity for dynamic targets ('dynamic VA') [4, 12, 36], contrast sensitivity [37], and positional acuity [38], to name but a few.
Clinical data recorded before (baseline) and after surgery are summarised in table 1 (visual acuity, reading ability, and fixation).
Challenges to mfERG recording include test durations that are difficult for some subjects, a requirement for good acuity and ability to fixate on a target during the test, and technical difficulty in probing peripheral retina and isolating rod pathways.
Control and Lrp4 −/− ; Lrp4 m mice were similarly able to locate a visible platform and had comparable swimming velocities, indicating that the impaired performance of Lrp4 −/− ; Lrp4 m mice was not due to compromised visual acuity, swimming ability, or motivation to escape the water.
The present study shows that the largest relative brain sizes among primate species are associated with monogamous mating systems, suggesting primate monogamy may require greater social acuity and abilities of deception.
If, however, monogamous mating systems require greater social acuity and abilities for deception and social or psychological manipulation, then monogamy would select for larger and potentially more complex brains.
A prose stylist of quite outstanding talent with a gift for psychological acuity and an ability to encapsulate the human condition, she still lacks, or possibly deliberately avoids, the final element that would place her among the great British writers of today.
She is large, and dresses in a uniform of loose, monochromatic linen — grainy-mustard yellow, indigo, green, or tomato red — Ted Muehling drop earrings, and a pair of cherry-Jolly-Rancher-red glasses that draw attention to the faculties for which she is known: visual acuity and an ability to spot undiscovered talent.
