Introduction of a digital near-vision reading test for normal and low vision adults: development and validation

Labiris, Georgios; Panagiotopoulou, Eirini-Kanella; Chatzimichael, Eleftherios; Tzinava, Maria; Mataftsi, Asimina; Delibasis, Konstantinos K.

doi:10.1186/s40662-020-00216-0

Cited by 14 publications

(19 citation statements)

References 24 publications

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“…In the last decade, a series of cross-sectional or prospective studies in refractive errors have been performed worldwide, such as in Asia [ 18 – 31 ], Europe [ 2 , 32 – 40 ], America [ 41 – 45 ], Oceania [ 46 – 49 ], and Africa [ 50 – 54 ]. These studies provided essential information on the epidemiology of major ocular disorders and visual impairment among various countries and ethnic groups.…”

Section: Introductionmentioning

confidence: 99%

Design, methodology, and baseline of whole city-million scale children and adolescents myopia survey (CAMS) in Wenzhou, China

Zhuang

Zhang

et al. 2021

Eye and Vis

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Background Myopia is the most common visual impairment in children and adolescents worldwide. This study described an economical and effective population-based screening pipeline and performed the project of a million scale children and adolescents myopia survey (CAMS), which will shed light on the further study of myopia from the level of epidemiology and precision medicine. Methods We developed a novel population-based screening pattern, an intelligent screening process and internet-based information transmission and analysis system to carry out the survey consisting of school children in Wenzhou, China. The examination items include unaided distance visual acuity, presenting distance visual acuity, and non-cycloplegic autorefraction. Myopia and high myopia were defined as spherical equivalent (SE) ≤ − 1.00 diopters (D) and SE ≤ − 6.00 D, respectively. Next, the reports of the vision checking were automatically sent to parents and the related departments. The CAMS project will be done two to four times annually with the support of the government. An online eyesight status information management system (OESIMS) was developed to construct comprehensive and efficient electronic vision health records (EVHRs) for myopia information inquiry, risk pre-warning, and further study. Results The CAMS completed the first-round of screening within 30 days for 99.41% of Wenzhou students from districts and counties, in June 2019. A total of 1,060,925 participants were eligible for CAMS and 1,054,251 (99.37% participation rate) were selected through data quality control, which comprised 1305 schools, and 580,609, 251,050 and 170,967 elementary, middle, and high school students. The mean age of participants was 12.21 ± 3.32 years (6–20 years), the female-to-male ratio was 0.82. The prevalence of myopia in elementary, middle, and high school students was 38.16%, 77.52%, and 84.00%, respectively, and the high myopia incidence was 0.95%, 6.90%, and 12.98%. Conclusions The CAMS standardized myopia screening model involves automating large-scale information collection, data transmission, data analysis and early warning, thereby supporting myopia prevention and control. The entire survey reduced 90% of staff, cost, and time consumption compared with previous surveys. This will provide new insights for decision support for public health intervention.

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Section: Introductionmentioning

confidence: 99%

Design, methodology, and baseline of whole city-million scale children and adolescents myopia survey (CAMS) in Wenzhou, China

Zhuang

Zhang

et al. 2021

Eye and Vis

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“…8 On the other hand, the advanced reading tests like the RADNER, the MNREAD and the DDART reflect accurately the near vision, and their printed and digital versions have been used both in clinical and research settings. 6 , 12 , 16 , 21 , 22…”

Section: Discussionmentioning

confidence: 99%

“…wDDART introduces an automatic calculation of reading times using a digital signal processing algorithm to measure the duration of the talk and post-talk delays, formerly described by our group, 6 similarly to the approach of Radner et al 16 In detail, the patient’s voice is recorded by a standard microphone with sampling frequency f s , set in the operating system’s settings (default value 44.1 kHz). Thus, a digital, signed voltage signal x(n) is generated.…”

Section: Methodsmentioning

confidence: 99%

“…The Democritus Digital Reading Acuity Test (DDART) is a digital reading test that was developed and validated recently by our group, which calculates all prevalent reading parameters that evaluate the reading capacity of the patient. 6 , 7 However, since DDART is a Microsoft (MS) Windows ® -based executable program, it requires installation of MS Windows, which increases the overall cost of the test and excludes its installation in computers with other operating systems. Moreover, potential software upgrades of the underlying executable program cannot be universally applied to all computers that host the DDART.…”

Section: Introductionmentioning

confidence: 99%

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Development and Validation of a Web-Based Reading Test for Normal and Low Vision Patients

Labiris¹,

Panagiotopoulou²,

Duzha³

et al. 2021

OPTH

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Purpose To develop and validate a web-based reading test for normal and low vision patients. Methods This is a prospective, comparative trial. The web-based Democritus Digital Acuity Reading Test (wDDART) was developed. wDDART introduces a series of advanced characteristics (advanced text calibration, computer-vision-based estimation of patient’s distance, and automatic calculation of patient’s reading times) that facilitate the overall examination procedure. wDDART’s reading parameters [reading acuity (RA), maximum reading speed (MRS), critical print size (CPS) and reading accessibility index (ACC)] were compared to the corresponding ones of its conventional Windows-based reading test (DDART) in a sample of normal and low vision participants. wDDART’s test–retest reliability for all reading parameters was evaluated in a 15-day time-window. Results One hundred patients (normal vision group-NVG: 70; low vision group-LVG: 30 patients) responded to DDART and wDDART. Non-significant differences between the two reading tests were found for all parameters in NVG and LVG. Intraclass correlation coefficients (ICCs) between the two tests demonstrated good or excellent correlation for RA, MRS, ACC and moderate correlation for CPS. Test–retest reliability was excellent for RA and ACC, while ICCs were 0.715–0.895 for MRS and CPS. Conclusion The wDDART demonstrated sufficient validity and repeatability making it suitable for clinical and research settings. Clinicaltrials.gov Identifier NCT04618224.

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“… 22 After the UDVA evaluation, all near and, then, intermediate vision parameters were obtained for all patients using the Democritus Digital Acuity Reading Test (DDART), which is based on the Greek version of MNREAD. 23 Contrast sensitivity was evaluated with the Pelli–Robson test at 85 cd/m 2 background light.…”

Section: Methodsmentioning

confidence: 99%

Premium Monovision versus Bilateral Myopic Monovision, Hybrid Monovision and Bilateral Trifocal Implantation: A Comparative Study

Labiris¹,

Panagiotopoulou²,

Perente³

et al. 2022

OPTH

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Purpose Contemporary monovision techniques use premium intraocular lenses (IOLs), either in both eyes or at least in the non-dominant one. Primary objective of this study was to compare the efficacy of premium monovision (implantation of the trifocal diffractive Panoptix IOL in the non-dominant eye and the bifocal hybrid refractive-diffractive Restor IOL in the dominant eye), against bilateral myopic monovision (implantation of the monofocal SN60WF IOL targeting −0.50 D in the dominant eye and −1.25 D myopia in the non-dominant one), hybrid monovision (implantation of Panoptix in the non-dominant eye and SN60WF in the dominant eye) and bilateral trifocal implantation (with bilateral Panoptix implantation). Methods This is a prospective, comparative, clinic-based trial. Cataract patients populated four study groups: Monovision Group (MoG), Multifocal Lens Group (MfG), Hybrid Monovision Group (HmG) and Premium Monovision Group (PmG). Binocular Uncorrected Distance Visual Acuity (UDVA), Uncorrected Reading Acuity and Critical Print Size at 60cm (UIRA, UICPS) and at 40cm (UNRA, UNCPS), contrast sensitivity, vision-related functional impairment, dysphotopsia symptoms and spectacle dependence were evaluated 6 months following the operation of the second eye. A mathematical model was constructed, which calculated the relative efficacy of each surgical intervention. Results A total of 120 participants were recruited and populated equally the study groups. Significant improvement of preoperative UDVA was observed in all study groups. No significant differences could be detected in postoperative UDVA and UIRA (p = 0.24) among study groups, while significant differences were noticed in UICPS (p = 0.04), UNRA (p = 0.02) and UNCPS (p = 0.01). Dysphotopic phenomena (glare and shadows) were significantly more in the MfG arm followed by the PmG group (p = 0.04 and p = 0.02, respectively), while perceived difficulty and spectacle independence rates were significantly better in PmG group. PmG presented the best overall relative efficacy. Conclusion All surgical techniques present satisfactory outcomes. Premium monovision seems to demonstrate the best outcomes. Trial Registration ClinicalTrials.gov, NCT04618380. Registered 05 November 2020, https://clinicaltrials.gov/ct2/show/NCT04618380 .

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Introduction of a digital near-vision reading test for normal and low vision adults: development and validation

Cited by 14 publications

References 24 publications

Design, methodology, and baseline of whole city-million scale children and adolescents myopia survey (CAMS) in Wenzhou, China

Design, methodology, and baseline of whole city-million scale children and adolescents myopia survey (CAMS) in Wenzhou, China

Development and Validation of a Web-Based Reading Test for Normal and Low Vision Patients

Premium Monovision versus Bilateral Myopic Monovision, Hybrid Monovision and Bilateral Trifocal Implantation: A Comparative Study

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