| Its unique composition allows for perfectly smoothe scanning of model surface areas, avoiding any harmful optical refractions. |
| Astigmatism and errors of refractions must be corrected to improve the development of a good bilateral sight function. |
| Moon is a lunar show of luminous refractions, a table centre or ornament which will always be the dynamic vortex in a room. |
| The walls around flicker with refractions from the gem-encrusted trove that is the Iranian Crown Jewels. |
| Optometrists and ophthalmologists will no longer be the only professionals entitled to perform refractions. |
| They undergo a multitude of very light refractions, which causes to curve their trajectory. |