Scheimpflug imaging

Adopting a multidiagnostic method for characterising the anterior segmentA multidiagnostic device is able to provide consistent measurements of refraction and ocular aberrations in healthy eyes. The consistency of refractive measurements is not dependent on the magnitude of the refractive error, with the same precision ability for moderate to high myopia and for hyperopia.
How to manage vision changes over time post-LASIK
How to manage vision changes over time post-LASIKHow often have you heard a post-LASIK patient say his surgery “isn’t working anymore” or it has “expired?” While the corneal tissue that was ablated is gone forever, eyes can change over time, and laser vision correction does not stop time.
Why single-instrument screening for keratoconus remains a dreamThe promise of simple, objective, single instrument-based screening for highly asymmetric keratoconus in patients considering LASIK is still more of an idea than reality. Multiple metrics can identify early keratoconus in a minority of affected eyes, but none of the metrics consistently identify early corneal abnormalities and none of the metrics identify the same eyes as being at elevated risk for ectatic disease.
Which devices produce more repeatable astigmatism data?