From all Lasik flap complication, LASIK flap buttonholes are the ones that lead most often to loss of
best-corrected visual acuity (BCVA). Why do they happen?
Thin, irregular and perforated flaps seem to result from a common
etiology; an inadequate coupling of the blade to the cornea. Steep
corneas have been compared to tennis balls that would buckle […]

There comes a time in every laser eye surgical procedure when leaving
the battlefield is the best of two (or more) evils. When is it best to
reposition the flap, abandon the procedure and possibly attempt the LASIK
procedure at a later time…?
Obtaining adequate suction to certain globes is occasionally an elusive
target. This includes small hyperopic eyes, flat […]

State of the art LASIK technology avoids the following problems during
quality laser eye surgery

The Sliding Suction Ring
Application of adequate suction is essential
for intraocular pressure
upsurge and dissection of good quality corneal
flaps. On occasion, the suction ring slides prior to the buildup of
adequate vacuum and the flap is decentered from the pupillary axis.
This is reported to happen […]

Flattening the Recalcitrant LASIK Flap Fold
Lasik flap folds can induce irregular astigmatism with optical
aberrations and loss of BCVA especially if they involve the visual
axis. ‘Macrofolds’ are easily seen by slitlamp exam and represent full
thickness flap tenting in a linear fashion. On the other hand,
‘microfolds’ within the flap itself may represent wrinkles in Bowman’s
layer or in […]