C.R.A.C.K. ERG
C.R.A.C.K. ERG Range is an easy to use software package, which can convert normal adult data from any laboratory into an expected range, based on the variables age, sex, axial length or degree of myopia.
C.R.A.C.K ERG is designed to derive normal ranges of ERG results based on age and axial length.
Simply by entering the numeric value associated with the specific variable in a given patient, normal ranges (µV for amplitudes; msec. for implicit times) will be displayed for all stimulus conditions recommended by the ISCEV Standard for Electroretinography (ISCEV). These ranges, derived from ERGs recorded from hundreds of subjects, contain 95% of control data specific to the age, axial length or refractive error.
C.R.A.C.K. ERG can be applied to data recorded individuals from 2 months to 70 years, for myopic refractive errors up to -15D, or for axial length measures up to 30 mm. All equations have been derived relative to a set of normal adult data, which allows any laboratory to use the software, regardless of electrode or Ganzfeld type.
For more information please contact: carol.westall@sickkids.ca