Page 82 - The Book Pi in eye
P. 82

Rajesh Khanna, MD












                                              12 RISKS AND COMPLICATIONS



                            The below mentioned side effects are common to  cataract surgery.
                            We  know  that  cataract  surgery  is  one  of  the  safest  procedures.
                            Patients  undergoing  Prelex  are  younger  and  healthier  than  those
                            undergoing cataract surgery so the complications are less common.


                               Corneal Edema or hazy cornea
                               The  fluid  used  in  the  surgery  may  enter  into  the  clear  cornea
                            making it milky causing blurry vision. The inner lining of the cornea is
                            a pump that actively removes water out of the cornea to keep it clear.
                            Use of excessive energy or ultrasound in the eye can cause reversible
                            shock  to  these  cells. Touching  the  inner  surface  of the  cornea  can
                            permanently damage the cells.
                               Pre-existing   problems   with   this   function   of   the   pump   can
                            predispose to this condition. Cornea edema resolves, with time aided
                            by the use of hypertonic saline.

                               Inflammation or Uveitis
                               Whenever any part of the body is violated it mounts a defense. So
                            does the eye, which considers the surgery an attack. White blood cells
                            are  liberated  into  the  anterior  chamber.  Pigment  released  from the
                            colored  iris,  and  blood cells  add  to  this  mixture.  Effects  include;
                            blurred vision, redness and pain. Nonsteroidal anti-inflammatory and
                            steroid drops aid in resolution. People with a deeply  pigmented iris
                            may take longer to resolve.

                               Zonular Dialysis/Implant shift
                               When the support of the lens bag is weak the lens can move from
                            its  well-centered  position.  Effects  could  vary  from  minor  glare  to


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