dioptre


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  • noun

Synonyms for dioptre

a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters

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References in periodicals archive ?
39 prism dioptres reduction was observed at 1 week after injection.
The increase sees, for example, glasses with single vision lenses of a spherical power of not more than 6 dioptres with a cylindrical power of not more than two dioptres increase from 37.
20[pounds sterling] spherical power of not more than 6 dioptres with a cylindrical power of not more than 2 dioptres B.
The operation is recommended for short-sighted people with a prescription of -7 dioptres or worse, and for long-sighted prescriptions of more than +4 dioptres.
It said the criteria used to select patients for the study included those with prescriptions between the powers of 0 to 6 dioptres of myopia and between 0 and 1 dioptres of astigmatism, and that 80% of all patients Optical Express treated with laser eye surgery fell within each of these categories respectively.
In patients with keratometry readings less than 53 dioptres, there was an average increase of three lines of BCVA whereas those with keratometry readings greater than 55 dioptres lost on average one line of BCVA.