eye disorders
Tests for Eye Disorders
Pachymetry
Pachymetry (measuring the thickness of the cornea) is very important in refractive eye surgery, such as laser in situ keratomileusis ( Laser In Situ Keratomileusis (LASIK) ). Pachymetry is usually done by using ultrasonography. For ultrasound pachymetry, the eye is numbed with drops, and an ultrasound probe is placed gently onto the surface of the cornea. Optical pachymetry does not require numbing eye drops because the instruments do not touch the eye. 