| Eyes that are not optimized in this way are said to have refractive errors. |
| After randomisation, all children were tested for refractive error with cycloplegic drops to eliminate artefact due to accommodation. |
| If you are happy wearing contact lenses or glasses, you may not want to have refractive surgery. |
| The single advantage of refractive systems over their reflective counterparts is an absence of off-axis aberrations. |
| Concave lenses with minus or divergent power correct this refractive error and refocus the light rays on the correct point on the retina. |
| First, they are structural proteins that contribute to the refractive powers of the lens. |
