dioptral
/daɪˈɑptrəl/
adjective
- Relating to the measurement of refraction (bending) of light by lenses or the eye.
- The optician explained the dioptral power of the new eyeglass lenses.
- In physics class, we studied dioptral principles to understand how telescopes work.
- The dioptral adjustment on the microscope helped bring the specimen into clear focus.
Synonyms