LEWIS HOUGHTON / SCIENCE PHOTO LIBRARY LEWIS HOUGHTON / SCIENCE PHOTO LIBRARY
Eyesight test lenses. These are used by an optician or ophthalmologist to find a set of lenses best suited to treating a patient's visual defects. These include conditions such as myopia (short-sightedness) and hypermetropia (long- sightedness). Photographed at the Princess Alexandra Eye Pavilion, Edinburgh, Scotland.
Model release not required. Property release not required.