Optometry and Vision Science

No abstract available

SIGNIFICANCE

New refractive technologies are consistently emerging in the optometry market, necessitating validation against current clinical standards.

PURPOSE

This study aimed to compare the refractive measurements between standard digital phoropter refraction and the Chronos binocular refraction system.

METHODS

Standardized subjective refraction was conducted on 70 adult participants using two separate refraction systems. The final subjective values from both devices were compared for M, J0, and J45. The time taken to complete refraction and patient’s comfort were also evaluated.

RESULTS

Good agreement was found between the standard and Chronos refraction, with narrow mean differences (including 95% confidence intervals) and no significant bias for M (0.03 D, −0.05 to 0.11 D), J0 (−0.02 D, −0.05 to −0.01 D), and J45 (−0.01 D, −0.03 to 0.01 D). The bounds of the limits of agreement of M were −0.62 (lower bound; −0.76 to −0.49) and 0.68 (upper bound; 0.54 to 0.81), those of J0 were −0.24 (lower bound; −0.29 to −0.19) and 0.19 (upper bound; 0.15 to 0.24), and those of J45 were −0.18 (lower bound; −0.21 to −0.14) and 0.16 (upper bound; 0.12 to 0.19). No significant differences were noted between the two techniques for any of the refraction components (M standard = −3.03 ± 2.42 D, M novel = −3.06 ± 2.37 D, z = 0.07, P = .47; J0 standard = 0.12 ± 0.40 D, J0 novel = 0.15 ± 0.41 D, z = 1.32, P = .09; J45 standard = −0.04 ± 0.19 D, J45 novel = −0.03 ± 0.19 D, z = 0.50, P = .31). The Chronos was significantly faster than the standard technique, with an average difference of 19 seconds (standard, 190 ± 44 seconds; novel, 171 ± 38 seconds; z = 4.91; P

SIGNIFICANCE

When worn for myopia control in children, soft multifocal contact lenses with a +2.50 D add reduced the accommodative response over a 3-year period, but wearing them for more than 4 years did not affect accommodative amplitudes, lag, o…

SIGNIFICANCE

Low-dose atropine is one of the leading treatments of myopia progression in children. However, the effect of low-dose atropine on binocular vision measurements has not been thoroughly studied.

PURPOSE

This study aimed to determine the effect of 0.01, 0.03, and 0.05% atropine on visual acuity, pupil size, binocular vision, and accommodation in children aged 6 to 17 years.

METHODS

Forty-six children (28 girls and 18 boys) were randomized into four groups: placebo (n = 10) and 0.01% (n = 13), 0.03% (n = 11), and 0.05% (n = 12) atropine. One drop of atropine or placebo was administered into each eye once. The following measurements were collected before applying the eye drops and 30 minutes, 60 minutes, and 24 hours after application of eye drops: habitual visual acuity at distance and near, pupil size, dissociated phoria at distance and near, negative and positive fusional vergence, near point convergence, near point convergence stamina and fragility, accommodative lag, and amplitude of accommodation. Repeated-measures analysis of variance was used, and P

SIGNIFICANCE

Leber’s hereditary optic neuropathy (LHON) is often associated with onset in the young, adult male demographic. This case report serves as a reminder that it can affect both sexes with onset into middle age.

PURPOSE

Leber’s here…

SIGNIFICANCE

Plasmablastic lymphoma (PBL) involving the ocular adnexa, although reported in the literature, is a rare clinical entity, especially when found in an immunocompetent patient. Understanding the clinical presentation can aid eye care pra…

SIGNIFICANCE

Patient-based research plays a key role in probing basic visual mechanisms. Less-well recognized is the role of patient-based retinal imaging and visual function studies in elucidating disease mechanisms, which are accelerated by advan…

SIGNIFICANCE

This survey provides information about Chinese children’s myopia correction status and parents’ attitudes toward myopia correction.

PURPOSE

Under the background of a guideline of appropriate techniques for the prevention and con…

SIGNIFICANCE

Unilateral gaze-evoked nystagmus is a rare neurologic finding that is largely diagnosed in connection with ischemic stroke. Gazed-evoked nystagmus is also a rare initial presentation of multiple sclerosis.

PURPOSE

This study aim…

SIGNIFICANCE

This study investigated the dynamic visual acuity (DVA) in young adults who play action video games regularly compared with nonaction video game players and those without regular experience in video game play. The results indicate better performance in some measurements of DVA in action video game players.

PURPOSE

This study aimed to provide new insights into performance on DVA assessments in young adults who play action video games regularly.

METHODS

A cross-sectional study was conducted between action video game and nonaction video game players with 47 participants ranging in age from 20 to 30 years. Dynamic visual acuity with two different angular velocities, 57 and 28.5°/s, and three different contrasts, 100, 50, and 10%, were evaluated. A second analysis with 33 participants compared DVA between action video game players and nonexperienced video game players or those spending less than 1 h/wk in gaming.

RESULTS

Dynamic visual acuity in the first analysis revealed a nonstatistical significance between groups in all the experimental conditions with 57 and 28.5°/s in three different contrasts. The second analysis with 33 participants revealed a statistical significance in DVA at 57 and 28.5°/s with contrast at 100% (P = .003 and P