dioptre

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dioptre

(US), diopter
a unit for measuring the refractive power of a lens: the reciprocal of the focal length of the lens expressed in metres
References in periodicals archive ?
This suggests that a UK university graduate with 17 years in education would, on average, be one dioptre more myopic than an individual who left school at 16 with 12 years of education.
To put this into context, a university graduate from the UK with 17 years of education would, on average, be at least 1 dioptre more myopic than someone who left school at 16 (with 12 years of education).
Relation between Duration of Presentation and Effect of Botulinum Toxin: Of 21 patients presenting within 1 month of duration, mean deviation before treatment was 30.10 prism dioptres. After treatment at 1 week, mean deviation was 2.58 prism Diopters i.e., 27.52 prism diopters reduction was observed at 1 week after injection.
Findings suggest that a UK university graduate with 17 years in education would, on average, be one dioptre more myopic than someone who left school at 16 with 12 years of education, researchers explained.
The power or strength of what items are measured in dioptres?
The sad reality is that 35% of people we see have a functional vision impairment without glasses, and we have seen power ranges from +17 to -20 dioptres. There is so much that we can do to help people get their life back on track."
The company has achieved a world record for manufacturing Special Lenses with the power of -108.00 dioptres and a 6.00 cylinder.
The P'8801 reading tool is available in four strengths (+1.00, +1.50, +2.00 and +2.50 dioptres) and is sold in packs of eight.