UNASSIGNED: Uncorrected refractive errors (REs) and amblyopia can lead to visual impairment with deleterious effects on quality of life and academic performance. Early detection and treatment by community vision care programs, such as the UCI EyeMobile for Children, can aid in addressing preventable vision loss.
UNASSIGNED: A total of 5074 children between the ages of 3 and 10 years were screened at 153 locations, including preschools, head start programs, and elementary schools within Orange County (OC), California (CA). Subsequently, 1024 children presented for comprehensive eye examinations. A retrospective analysis of all examined children was conducted, determining the frequency and severity of REs and amblyopia and the spectacle prescription rate by age. Propensity score matching analysis evaluated the effect of median household income on RE and amblyopia frequency.
UNASSIGNED: Among those who failed initial screening and were subsequently examined, significant rates of REs and amblyopia were detected: myopia (24.4%), hyperopia (35.4%), astigmatism (71.8%), anisometropia (8.9%), amblyopia (7.0%), and amblyopia risk (14.4%). A majority (65.0%) of those examined received prescription spectacles from UCI EyeMobile, with around a third requiring a new or updated prescription. The frequency of REs and amblyopia and the spectacle prescription rate were uniform across OC congressional districts. Myopia and amblyopia risk was positively and negatively associated with household income, respectively.
UNASSIGNED: The UCI EyeMobile for Children serves as a vital vision care program, providing free vision screening, comprehensive eye examinations, and spectacles. A significant number of children required examination, and a high frequency of REs and amblyopia were detected in examined children, with subsequent provision of prescription spectacles to most children.

UNASSIGNED: To evaluate the impact on the lag of accommodation (LOA) in emmetropic children after short-term wear of full-field Diffusion Optics TechnologyTM (DOT) spectacle lenses, designed to modulate retinal contrast to control myopia progression.
UNASSIGNED: This was a single-visit, prospective, randomized, subject-masked study of emmetropes (ametropes ±1.00D or less in each meridian) with no history of myopia control treatment. Unaided logMAR visual acuity was measured, and ocular dominance was determined using the sighting method. In a randomized order, participants wore plano full-field contrast management (DOT) spectacles (no clear central aperture) or control spectacles (standard single vision spectacle lenses). Each participant was given 5 minutes for adaptation to the respective lenses before open field autorefraction measurements were taken at 6 meters and 40 cm. Ten measurements were taken for each eye. Data were evaluated from the right eye and the dominant eye separately.
UNASSIGNED: A total of 30 participants (20 females and 10 males) with a mean age of 10.4 ± 2.8 (7 to 17) years completed the study. There was no significant difference in right eye mean LOA with contrast management spectacles 0.57 ± 0.39D versus control spectacles 0.62 ± 0.34D; Wilcoxon test, p = 0.37. For dominant eyes, LOA values were 0.60 ± 0.40D and 0.68 ± 0.33D with contrast management spectacles and control spectacles, respectively (p = 0.14). Additionally, no significant difference was observed in mean LOA between males and females or between age groups (7-11 years vs 12-17 years) for either right or dominant eyes with contrast management or control spectacles (all p > 0.05).
UNASSIGNED: Full-field contrast management spectacle lenses had no significant effect on LOA compared to standard single vision spectacle lenses, indicating no differential impact on accommodative response over the short period of lens wear tested.

Despite high discontinuation rates for myopia optical interventions, limited attention has been given to the potential rebound effects post-discontinuation. This systematic review aims to assess the extent of the rebound effects following the cessation of common clinical optical myopia-control interventions in children. A comprehensive search of PubMed, Embase, Cochrane CENTRAL, and ClinicalTrials.gov was conducted from inception to October 2023. The rebound effects, defined as changes in the axial length or spherical equivalent during and after treatment cessation, were categorized into four levels. These studies encompassed 703 participants and spanned from 2019 to 2023, with durations of treatment and cessation ranging from 6 months to 3.5 years and from 2 weeks to 5 years, respectively. This review, encompassing 14 studies, revealed a predominant strong rebound effect in orthokeratology (8 studies), a weak rebound effect in multifocal soft contact lenses (4 studies), and a variable rebound effect in peripheral-plus spectacle lenses (2 studies). Notably, with the increasing cessation duration, the rebound effects diminished, potentially linked to the reversal of choroidal thickening and the disappearance of peripheral myopic defocus. In conclusion, a temporal trend of rebound effects exists in all three myopia optical interventions, possibly contributing to their myopia control mechanisms.

BACKGROUND: Cataract is the leading cause of avoidable blindness globally. This study aims to measure the changes in Vision function-related quality of life (VFQoL) before and after cataract surgery and identify the predictors of an improvement in these outcomes.
METHODS: A multicenter, longitudinal cohort study was conducted. Patients with first eye cataracts were interviewed before and 6 months after cataract surgery. Multiple classification analysis (MCA) was performed to assess variation in the intensities of mean change scores for general function, psychosocial impact, and visual function with select factors.
RESULTS: A total of 747 participated in the baseline assessment. The 6-month follow-up rate was 86.5%. The mean general function, psychosocial impact, and visual function scores were 35.3 (±8.6), 12.5 (±3.4), and 8.3 (±3) in the baseline and 17 (±5.3), 6 (±2.2) and 3.8 (±1.3) in the follow-up assessments, respectively. In MCA, patients using spectacles postsurgery (β 0.111) and those having a very good postoperative visual acuity (β 0.098) had the most impact on general function. Patients reporting no ocular complaints postsurgery had a relatively higher effect on the psychosocial impact, (β 0.168) and similarly, patients using spectacles postsurgery and those aged 70 and older had the most impact on the visual function scores (β 0.146 and 0.126), respectively.
CONCLUSIONS: Cataract surgery is associated with meaningful improvements in vision and VFQoL in general. The determinants of better VFQoL include the usage of spectacles postsurgery. Strategies to further improve patient participation in postoperative review visits are needed for spectacle provision and patient education regarding spectacle use and compliance is imparted during such visits.

OBJECTIVE: This study analyses strategies and attitudes on myopia management reported by eye care practitioners (ECP) from Spain in 2022.
METHODS: A questionnaire was distributed to ECPs worldwide via the internet through professional associations. The questionnaire was distributed by email to all registered Spanish optician-optometrists. Questions examined awareness of increasing myopia prevalence; perceived efficacy; uptake of available approaches; and reasons preventing further uptake of specific approaches.
RESULTS: Of 3,107 practitioners who participated in the study, 380 were Spanish ECPs. Using a 10-point scale, Spanish practitioners reported less concern about increasing pediatric myopia (8.3 ± 1.6) compared to ECP\'s worldwide (8.5 ± 1.9) (p < 0.001), but similar level of clinical activity in myopia control (7.8 ± 2.3 vs. 7.5 ± 2.5, respectively) (p > 0.05); however, around half of all prescribed treatments were single-vision distance spectacles/contact lenses both in Spain and in most regions, with Spanish practitioners prescribing less single-vision spectacles than African and Asian (p < 0.001), but more than Australasian practitioners (p = 0.04). No significant differences were found between Spain and the other regions in the perceived efficacy of combined therapy, orthokeratology, and outdoor time (p > 0.05), with the former being perceived as the most effective myopia control method followed by orthokeratology. No significant differences were found between Spain and the world\'s average in factors preventing the prescription of myopia control approaches (p > 0.05). Spanish practitioners reported that embracing myopia management has a positive, but lower impact on customer loyalty, practice revenue and job satisfaction compared with the other regions (all p < 0.001).
CONCLUSIONS: Myopia control is increasing, although around half of practitioners still prescribe single-vision distance spectacles/contact lenses to young/progressive myopes. Combined therapy followed by orthokeratology were perceived as the most effective treatments. Embracing myopia management improved patient loyalty and job satisfaction.

Understanding caretakers\' willingness to pay (WTP) for their children\'s spectacles is essential to improving the sustainability of refractive error services and spectacle provision. Therefore, we investigated the willingness of caretakers to pay for their children\'s spectacles in a multi-centre study to develop a spectacle cross-subsidisation scheme in the Cross River State (CRS), Nigeria.
We administered the questionnaire to all caretakers whose children were referred from school vision screenings to four eye centres for full refraction assessment and dispensing of corrective spectacles from 9 August to 31 October 2019. We collected information on socio-demography, children\'s refractive error types, and spectacle prescription and then asked the caretakers about their WTP for the spectacles using a structured questionnaire and bidding format (in the local currency, Naira, ₦).
A total of 137 respondents (response rate = 100%) from four centres were interviewed: with greater proportion of women (n = 92, 67.1%), aged between 41 and 50 years (n = 59, 43.1%), government employees (n = 64, 46.7%) and had acquired college or university education (n = 77, 56.2%). Of the 137 spectacles dispensed to their children, 74 (54.0%) had myopia or myopic astigmatism (equal to or greater than 0.50D). The mean stated WTP for the sample population was ₦3,560 (US$ 8.9) (SD ± ₦1,913.4). Men (p = 0.039), those with higher education (p < 0.001), higher monthly incomes (p = 0.042), and government employees (p = 0.001) were more willing to pay ₦3,600 (US$9.0) or more.
Combining our previous findings from marketing analysis, these findings provided a basis to plan for a children\'s spectacles cross-subsidisation scheme in CRS. Further research will be needed to determine the acceptability of the scheme and the actual WTP.

UNASSIGNED: Spectacle lenses with arrays of lenslets have gained popularity in myopia control due to their high efficacy, low impact on visual performance, and non-invasiveness. One of the questions regarding their impact on visual performance that still remain is that: do the lenslets impact visual field sensitivity? The current study aims to investigate the impact of wearing spectacle lenses with highly aspherical lenslets (HAL) on the visual field sensitivity.
UNASSIGNED: An automated static perimetry test (Goldman perimeter target III) was employed to measure the detection sensitivity in the visual field. Targets were white light dots of various luminance levels and size 0.43°, randomly appearing at 76 locations within 30° eccentricity. Twenty-one adult subjects (age 23-61, spherical equivalent refractive error (SER) -8.75 D to +0.88 D) participated in the study. Sensitivities through two lenses, HAL and a single vision lens (SVL) as the control condition, were measured in random order.
UNASSIGNED: The mean sensitivity differences between HAL and SVL across the 76 tested locations ranged between -1.14 decibels (dB) and 1.28 dB. Only one location at 30° in the temporal visual field reached statistical significance (p < 0.00065) whereby the sensitivity increased by 1.1 dB with HAL. No significant correlation was found between the difference in sensitivity and age or SER. Such a difference is unlikely to be clinically relevant.
UNASSIGNED: Compared to the SVL, the HAL did not change detection sensitivity to static targets in the whole visual field within 30° eccentricity.

UNASSIGNED: This study aimed to assess parents\' awareness of and perspectives on childhood refractive errors in Saudi Arabia.
UNASSIGNED: This cross-sectional study was conducted between October and November 2020 in public schools across different regions of Saudi Arabia. Data were collected using an online questionnaire that assessed parents\' knowledge and perceptions of childhood refractive errors and spectacle wear.
UNASSIGNED: A total of 358 parents from different regions of Saudi Arabia completed the questionnaire and were obtained in this study (response rate: 85%). Approximately one third (38.3%) of the parents reported that they had never heard of refractive errors and one-third (33.8%) mentioned that uncorrected refractive errors did not lead to visual impairment. The majority (74.0%) cited using eyeglasses as an effective way to manage childhood refractive errors. Two-thirds (63.7%) stated that they did not receive any information about paediatric eye care. Better knowledge was associated with a higher educational level, female gender and older age (P <0.001, P = 0.008 and P = 0.024, respectively). Regarding parents\' perspective on spectacle wear, 13.7% felt that using eyeglasses affected their children\'s chances of learning. However, 82.7% supposed that eyeglasses did not affect their children\'s employment opportunities. Almost a quarter of the sample (22.1%) thought that using eyeglasses would decrease the eye\'s power, resulting in childhood visual impairment.
UNASSIGNED: The level of awareness and perceptions regarding childhood refractive errors and spectacle wear was low among parents. Therefore, a policy is needed to improve the awareness and perception of the key stakeholders in this issue, including parents and teachers.

UNASSIGNED: The aim of the study was to assess the pattern of ametropia, presbyopia, and the barriers to the uptake of spectacles among adult patients attending Hajiya Gambo Sawaba General Hospital (HGSGH), Zaria, Nigeria.
UNASSIGNED: This study was a descriptive hospital-based study. The study population was selected by systematic sampling over a 3-month period (July-September, 2016). A questionnaire was administered for sociodemographic data, patients\' history, and refraction. Patients with visual acuity less than 6/12 or who required at least +1.00DS to read N8 were given spectacle prescriptions and assessed after 2 months to confirm if they purchased the spectacles.
UNASSIGNED: Two hundred and nine patients were assessed: 124 (59.3%) females and 85 (40.7%) males. The age ranged from 18 to 75 years with a mean of 45.5. One hundred and seventy-five (83.7%) had ametropia, 100 (47.8%) had presbyopia, and patients having both were 66 (31.6%). Astigmatism was the most common ametropia, 118 (67.4%), followed by hypermetropic astigmatism 33 (18.9%) and myopia 24 (13.7%). Only 97 (46.6%) patients purchased their spectacles, and 92 of them were using their spectacles. One hundred and twelve (52.2%) patients did not buy their spectacles, with cost being most common barrier to the uptake of spectacles.
UNASSIGNED: There is a high burden of ametropia and presbyopia among patients attending HGSGH, Zaria. Cost of spectacles and \'no felt need\' were found to affect spectacle uptake. Health information and availability of low-cost spectacles are important strategies in reducing the burden of uncorrected ametropia and presbyopia in Kaduna State.

Introduction To compare myopia progression in school-aged children of Caucasian origin wearing part-time vs. full-time full correction with single-vision spectacles. Methods This prospective, randomized controlled trial included 30 children with bilateral myopia, who received either full-time or part-time treatment with single-vision spectacle lenses. Myopia progression was assessed as the mean change in cycloplegic spherical equivalent refraction (SE), mean change in axial length (AL), and mean change in sub-foveal choroidal thickness (SChT), over a 12-month follow-up period. Results A total of 32 eyes were treated with part-time single-vision spectacles (intervention group) and 28 eyes with full-time single-vision spectacles (control group), respectively. The part-time treated group reported no spectacle use during near-work activities for a mean of 6.2 hours/day. At the 12-month assessment, there was no significant difference between part-time and full-time correction groups in mean SE change (MD: -0.05 D, 95% CI: -0.50 - 0.39 D; P 0.81), in mean AL change (MD: -0.07 mm; 95% CI: -0.20 - 0.06 mm; P 0.30), and in mean SChT change (MD: -11.45 μm; 95% CI -22.60 - 14.16 μm; P 0.67). Conclusion Myopia progression in Caucasian children treated with part-time, single-vision spectacle use was not different compared to full-time, single-vision spectacle use, over a 12-month follow-up period.