Accuracy of pinhole visual acuity at an urban Indian hospital

Kumar, Rajesh S.; Rackenchath, Mahalakshmi V.; Sathidevi, A; Nagaraj, Sriharsha; Moe, Caitlin A.; Stamper, Robert L.; Keenan, Jeremy D.

doi:10.1038/s41433-018-0237-6

Cited by 10 publications

(11 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A recent study demonstrated good agreement between pinhole acuity and BCVA and recommended it as a test for visual impairment not correctable with spectacles. This surrogacy ought to be considered when comparing results with studies where subjectively measured BCVA is reported 50. Furthermore, clarification is needed on whether reported amblyopia prevalence findings include figures for those previously treated for amblyopia 29.…”

Section: Discussionmentioning

confidence: 99%

Comparison of amblyopia in schoolchildren in Ireland and Northern Ireland: a population-based observational cross-sectional analysis of a treatable childhood visual deficit

et al. 2019

View full text Add to dashboard Cite

ObjectivesThis study reports the prevalence of persistent amblyopia (post-traditional treatment age) in schoolchildren in the Republic of Ireland (henceforth Ireland) and Northern Ireland (NI), UK; populations with broadly similar refractive and genetic profiles but different eye-care systems.DesignThis is a population-based observational study of amblyopia and refractive error.SettingRecruitment and testing in primary and post-primary schools in Ireland and NI.ParticipantsTwo groups identified through random cluster sampling to represent the underlying population; Ireland 898 participants (12–13 years old) and NI 723 participants (295 aged 9–10 years old, 428 aged 15–16 years old).Main outcome measuresMonocular logMAR visual acuity (presenting and pinhole), refractive error (cycloplegic autorefraction), ocular alignment (cover test) and history of previous eye care. These metrics were used to determine prevalence and type of amblyopia and treatment histories.ResultsChildren examined in NI between 2009 and 2011 had a significantly lower amblyopia prevalence than children examined in Ireland between 2016 and 2018 (two-sample test of proportions, p<0.001). Using a criteria of pinhole acuity 0.2logMAR (6/9.5 Snellen) plus an amblyogenic factor, 4 of 295 participants aged 9–10 years old (1.3%, 95% CIs 0.4 to 3.6) and 3 of 428 participants aged 15–16 years old (0.7%, 95%CIs 0.2 to 2.2) were identified in NI. The corresponding numbers in Ireland were 40 of 898 participants aged 12–13 years old (4.5%, 95% CI 3.2 to 6.1). In NI strabismic amblyopia was the most prevalent type of persistent amblyopia, whereas anisometropic was predominant in Ireland. In Ireland, amblyopia was associated with socioeconomic disadvantage (OR=2.2, 95%CIs 1.4 to 3.6, p=0.002) and poor spectacle compliance (OR 2.5, 95% CIs 2.0 to 3.2, p<0.001).ConclusionsAmblyopia prevalence persisting beyond traditional treatment ages was significantly lower among NI children compared with Ireland. Uncorrected anisometropia, compliance with spectacle wear and socioeconomic disadvantage were contributing factors in Ireland. Children without obvious visible eye defects were less likely to access eye care in Ireland, resulting in missed opportunities for intervention where necessary.

show abstract

Section: Discussionmentioning

confidence: 99%

Comparison of amblyopia in schoolchildren in Ireland and Northern Ireland: a population-based observational cross-sectional analysis of a treatable childhood visual deficit

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Surveys wishing to report eREC must routinely measure (1) uncorrected VA (UCVA) , (2) corrected VA (CVA) for those wearing correction and (3) when either UCVA or CVA <6/12 pinhole VA (PinVA) or best‐corrected VA (BCVA) when refraction is done. Pinhole VA tends to be more commonly reported as conducting refraction in surveys has extensive resource implications, while pinhole screening has been shown to be effective at identifying refractive error in general populations . These VA measurements will enable estimates of no need, met need, under‐met need and unmet need ( Figure ).…”

Section: Measurementmentioning

confidence: 99%

Effective refractive error coverage: an eye health indicator to measure progress towards universal health coverage

McCormick

Mactaggart

Bastawrous

et al. 2019

Ophthalmic Physiologic Optic

View full text Add to dashboard Cite

“…As in the clinical practice, pinhole acts as the time-saver and method of choice over the standard refraction, which is frequently time-consuming. A recent study in urban Indian hospital found a similar visual acuity obtained from both pinhole and best-corrected visual acuity (BCVA) among adults above 50 years old (Kumar et al, 2019). Currently, there is no other mobile app which utilizes the pinhole test for vision screening within their algorithm beside ours.…”

Section: The Validity Of Vis-screen Appmentioning

confidence: 75%

A Pilot Study on the Validation of Vis-Screen Mobile Application for Vision Test

Rahman

Mutalib

Baig

et al. 2020

jABs

View full text Add to dashboard Cite

Visual impairment and blindness is a global concern. Poor awareness and late detection are the significant factors contributing to the large number of visually impaired people worldwide. The ubiquitous use of smartphone devices will enable the public to access various eye care services provided. We are developing this application based on the need for early detection to avoid further vision loss. The simple algorithm and user-friendly features will promote any layperson to use it with minimal training. This pilot study revealed the application is highly potential to be a valid and reliable tool for vision screening in the community.Keywords: mobile application; vision screening; visual impairment; blindnesseISSN: 2514-7528 © 2020 The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.DOI: https://doi.org/10.21834/jabs.v5i15.340

show abstract

Accuracy of pinhole visual acuity at an urban Indian hospital

Cited by 10 publications

References 3 publications

Comparison of amblyopia in schoolchildren in Ireland and Northern Ireland: a population-based observational cross-sectional analysis of a treatable childhood visual deficit

Comparison of amblyopia in schoolchildren in Ireland and Northern Ireland: a population-based observational cross-sectional analysis of a treatable childhood visual deficit

Effective refractive error coverage: an eye health indicator to measure progress towards universal health coverage

A Pilot Study on the Validation of Vis-Screen Mobile Application for Vision Test

Contact Info

Product

Resources

About