Standardised approach to the reporting and presentation of refractive data: electronic patient record

Kaye, Stephen B.; Rubin, Alan M.; Evans, Tanya; Aristodemou, Petros; Khawaja, Anthony P; Sparrow, J M

doi:10.1136/bmjophth-2022-001015

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…When assessing the presence of astigmatism in the non-progressing group of patients, there was a significant relationship between the presence of astigmatism and progression in SER (χ 2 =9.79, p=0.0018; 81% vs 41% of patients were astigmatic in the progressing vs non-progressing groups, respectively). The same pattern was found when analysing CFB 12m refractive data transformed into Long’s matrix of (f11 f12 f22)78–80 using an analogous model (online supplemental table 1; main effect of astigmatism: F (1,54) =4.45, p=0.039; mean change –0.37/–0.22×79 vs −0.23/−0.04×142 for patients with and without astigmatism, respectively). Interestingly, the change in the f12 component, which is computed from the DCYL and its respective axis, showed virtually no difference between these patient groups (online supplemental figure 1).…”

Section: Resultssupporting

confidence: 60%

Astigmatism and maternal myopia as important factors affecting success rate of DIMS lens treatment

Domsa,

Bankó,

Körtvélyes

et al. 2024

BMJ Open Ophth

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ObjectiveTo assess the efficacy of myopia control spectacle lenses (defocus incorporated multiple segments/DIMS) in slowing myopia progression among a diverse Central European paediatric population and investigate the contribution of baseline parameters on treatment outcomes.Methods and analysisThis retrospective observational study included 62 individuals aged 4–17 years (mean±SD: 10.21±2.70) with progressing myopia but without ocular pathology with a range of −0.88 to −8.25 D spherical equivalent refraction (SER) (−3.73±1.56), coupled with astigmatism up to −3.25 D cylindrical. All participants were prescribed DIMS (Hoya MiyoSmart) spectacles. Key outcome variables were cycloplegic SER, measured for all participants and axial length (AL), assessed in a subset of patients, recorded at baseline, 6 months and 12 months. Quality of life assessments were conducted at baseline, at 2 weeks, and 3, 6, 9 and 12 months. Additionally, parental myopic dioptre was recorded when applicable.ResultsAt the 12-month mark, myopia progression in patients (mean±SE: −0.40±0.05) mirrored findings from prior European DIMS studies, but with 50% of patients showing no progression. A multivariate analysis of covariance model revealed that baseline astigmatism and younger age adversely affected therapy outcomes in both SER and AL, while severe maternal myopia led to greater SER progression. In contrast, only young age but not astigmatism was associated with AL increase in a comparable group of children with myopia, part of the LIFE Child Study, wearing single-vision spectacles. Patients reported consistent satisfaction with treatment, with minimal side effects, which diminished over the year.ConclusionIn the European population, astigmatism, young age and severe maternal myopia are risk factors for suboptimal outcomes following DIMS therapy. Further research is necessary to elucidate the impact of astigmatism on myopic defocus therapy.

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Section: Resultssupporting

confidence: 60%

Astigmatism and maternal myopia as important factors affecting success rate of DIMS lens treatment

Domsa,

Bankó,

Körtvélyes

et al. 2024

BMJ Open Ophth

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“…Between the late 70s and 80s, a combination of efforts from Long,8 Keating9–11 and Harris7 led to the formalisation of a mathematically meaningful representation of dioptric power via the concept of a symmetric, square 2×2 matrix. The matrix representation of dioptric power has enabled scientific methods of analysis to be conducted on critical optometric and ophthalmologic data for over three decades12–17 that allows dioptric power to be analysed in its entirety. The use and application of these methods to analyse dioptric data is discussed in detail elsewhere 17…”

Section: Introductionmentioning

confidence: 99%

Multivariate analysis of refractive state in eyes with keratoconus

Chetty

2023

BMJ Open Ophth

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ObjectiveTo demonstrate a multivariate method of analysis of the short-term variation of refractive state in keratoconus (KC) patients.Methods and analysisIn this observational study, 19 eyes with KC and 19 healthy control eyes were measured. The study included both male and female participants and the mean age was 23.6 years (range 18–34 years) and 23.2 years (range 22–26 years) for KC and control participants, respectively. Forty consecutive autorefractor measurements were taken for each participant and the short-term variation thereof was analysed using multivariate methods of analysis.Results and conclusionShort-term variation of refractive state is greater in eyes with KC than in healthy control eyes and variation increases with severity of disease. A novel finding was that there was much more ortho-astigmatic and oblique-astigmatic variation seen in KC eyes than in control eyes which had predominately stigmatic variation. Refractive state is described by three components, namely, sphere, cylinder and axis. Although it is multivariate in nature, it is often analysed using univariate statistical methods. In diseases such as KC, where early diagnosis is crucial for a good prognosis, it is necessary that researchers endeavour to investigate the disease from different perspectives to fully understand the nature of the disease. This paper comprehensively demonstrates the multivariate statistical methods of analysis of refractive data. The implementation of this analysis provides insight into the short-term variation of refractive data in healthy and keratoconic eyes, and these findings have not been demonstrated before using univariate statistics.

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Standardised approach to the reporting and presentation of refractive data: electronic patient record

Cited by 2 publications

References 25 publications

Astigmatism and maternal myopia as important factors affecting success rate of DIMS lens treatment

Astigmatism and maternal myopia as important factors affecting success rate of DIMS lens treatment

Multivariate analysis of refractive state in eyes with keratoconus

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