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Roshini Claire Anthony, 5 days ago

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Battle of microperimeters: CenterVue MAIA vs Nidek MP-3

10 Jan 2018

Values generated by the CenterVue Macular Integrity Assessment (MAIA) vs the Nidek Microperimetry-3 (MP-3) microperimeter are higher for retinal sensitivity but lower for luminance and contrast sensitivity, suggests a recent study.

However, the relationships appear fairly consistent, and application of a standard correction factor allows data to be inter-related, at least for normal eyes, according to the investigators.

The mean retinal sensitivity measures were significantly lower (p<0.0001) with the MP-3 (25.02±1.06 dB; range, 20.90–26.70) compared with the MAIA (30.68±0.74 dB; range, 28–31.84). The luminosity levels measured by the MP-3 (7.75±1.31 asb; range, 6.44–9.06) were significantly higher (p<0.0001) vs those of the MAIA (0.92±0.14 asb; range, 0.78–1.06). The MP-3 (0.94±0.33 log units; range, 0.61–1.27) also measured significantly higher contrast sensitivity compared with the MAIA (0.23±0.03 log units; range, 0.20–0.26).

The intraclass coefficient between the two instruments, despite the absolute differences, was 0.85 (95 percent CI, 0.70‒0.92) after applying a standard correction factor to each data point (MAIA sensitivity=MP-3 sensitivity+5.65), with a mean difference of 0.01 between MP-3 and MAIA.

The investigators conducted a prospective comparative study on 31 eyes of 23 healthy participants who underwent complete ophthalmological examination including retinal sensitivity assessments using two microperimeters: the MP-3 by Nidek Technologies and the MAIA by CenterVue. They analysed the mean retinal sensitivity as well as its corresponding luminance and contrast between the two devices. Interdevice reproducibility and level of agreement between the sensitivity values of the devices were also evaluated.

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Most Read Articles
Roshini Claire Anthony, 5 days ago

Patients with mild hypertension who are at low risk for cardiovascular disease (CVD) do not appear to derive mortality or CVD benefit from antihypertensive treatments, raising questions on the need for treatment in this population, according to a recent study from England.

Pearl Toh, 09 Nov 2018
A personalized computerized neurofeedback intervention for training attention and memory shows potential in cognitive training for healthy elderly men, who improved in cognitive performance after the training, although no significant improvements were seen in the overall study population.
3 days ago
Type 1 diabetes impairs cognitive functioning in children, and this effect is exacerbated by extreme glycaemic levels, according to a recent meta-analysis.
Pearl Toh, 08 Nov 2018
The pneumonia-causing bacteria, Streptococcus pneumoniae (pneumococcus), can be spread through nose picking and rubbing after exposure of the hands to the bacteria — in addition to the conventionally known route of inhalation of airborne droplets, a study reveals.