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Purpose: To evaluate the repeatability and reproducibility of the swept‐source optical coherence tomographer Zeiss IOLMaster 700 and compare its outputs with those obtained using partial coherence interferometry (Zeiss IOLMaster v3) in a healthy, paediatric population. Methods: This is a cross‐sectional, observational study. Examiner 1 took two sets of biometric measurements (axial length [AL], mean corneal radius of curvature [Kmean], anterior chamber depth [ACD] and lens thickness [LT]) using the IOLMaster 700, and one set of measurements (AL, Kmean and ACD) using the IOLMaster v3. Examiner 2 took one full set of measurements using the IOLMaster 700. Mean differences and 95% limits of agreement (LOA) were calculated, and Bland and Altman plots used to explore repeatability and reproducibility of the IOLMaster 700 alongside establishing its agreement with the IOLMaster v3. Results: Mean participant age was 7.52 ± 0.58 years. Repeatability analyses demonstrated small mean differences and narrow 95% LOA for AL (0.001, −0.013 to 0.015 mm), Kmean (0.002, −0.020 to 0.024 mm), ACD (−0.003, −0.031 to 0.024 mm) and LT (0.001, −0.024 to 0.026 mm), respectively. Similarly, small mean differences and narrow 95% LOA established excellent reproducibility (AL 0.001, −0.016 to 0.018 mm; Kmean −0.001, −0.027 to 0.025 mm; ACD −0.010, −0.041 to 0.021 mm; LT 0.002, −0.016 to 0.020 mm). The IOLMaster 700 and IOLMaster v3 demonstrated good agreement with small mean differences and narrow 95% LOA (AL 0.009, −0.034 to 0.052 mm; Kmean 0.016, −0.013 to 0.044 mm; ACD 0.134, 0.055 to 0.212 mm). Conclusions: When used within a paediatric population, these data demonstrate the IOLMaster 700 to be highly repeatable and reproducible for measures of AL, Kmean, ACD and LT. There is excellent inter‐instrument agreement between the IOLMaster 700 and IOLMaster v3 for measures of AL and Kmean. ACD measurements show weaker agreement. These data will be useful when considering reports from population‐based studies of refractive error and clinical myopia research. [ABSTRACT FROM AUTHOR]

Vision impairment is common among older adults and affects dementia screening assessments, which include visually presented items. We developed and validated a version of the Montreal Cognitive Assessment (MoCA) for people with vision impairment that includes all the cognitive domains included in the standard MoCA. Visual components of the MoCA were adapted by developing alternative spoken forms. We used both individual item analysis and item substitution to identify the optimal set of alternative items for inclusion in the Montreal Cognitive Assessment for People With Vision Impairment (MoCA-VI) in place of the original items to maximize sensitivity and specificity for dementia. We evaluated the performance and reliability of the final tool, including adjustments for demographic factors. One hundred twenty-eight participants with vision impairment (presenting distance visual acuity worse than 6/12), 79 cognitively healthy and 49 with dementia, completed the adapted MoCA. An additional 86 participants with normal vision completed the standard MoCA and alternative items to assess score equivalence and independence from vision impairment. Twenty-six participants were retested 2–4 weeks after initial testing. With the optimal item set, the final MoCA-VI had an area under the curve of 0.96 (95% CI [0.93, 0.99]). At a cut point of 24 points or less, sensitivity was 95.9%, with a specificity of 92.4%. The intraclass correlation for test–retest reliability was 0.84 (95% CI [0.81, 0.96]). The MoCA-VI is a specific and reliable test for possible dementia among adults with vision impairment. Public Significance Statement: Vision impairment is common among older people. Vision impairment affects screening tests used to identify possible dementia that include visually presented tasks. This article describes the development of a reliable screening test for possible dementia that was developed with people with vision impairment. [ABSTRACT FROM AUTHOR]