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Abstract
LASIK has become an accepted and popular method to treat refractive\
errors, as it is safe, effective, stable and predictable procedure for
correction of low to moderate myopia and myopic astigmatism.
The aim of this study to detect correlation between refractive changes
and changes in keratometric value after myopic LASIK.
One hundred eyes were included in this study and subjected to LASIK.
preoperative examination and investigation. Post operative follow up was done at first day, one month and six months.
Preoperative examination included Slit lamp, Complete dialeted
fumdus, Goldman applanation tomometry manifest refraction, corneal
topography and pachymetry.
Preoperative collected date included preoperative spherical equivalent
of refraction (SEQ) which ranged from-l to -19D with the mean (-7.0 ±
4.02D) and average keratometric value (Sim-K) which ranged from 40.5 to
48 D with the mean (44.5 ± 1.46 D)
Post operative examination included Slit lamp examination, manifest
refraction and corneal topography.
Postoperative data were collected 6 month after LASIK and were
included postoperative (SEQ) which ranged from + 1.25 to - 6.5D with the
mean (0.5 ± I.13D) and postoperative (Sim K) ranged 31D to 45D with the
mean (39 ± 2.41D) refractive changes (i1 SEQ) which ranged from -17.25
to +O.5D with the mean (-6.5 ± 3.83D) and changes in keratometric (i1
Sim-K) which ranged from 1.51 to 9.79D with the mean (4.55 ±2.13D).