Effects of prk surgery|Side effects of prk surgery

Other possible complications include haze, ghosting.

Scarring, induced astigmatism, and too much or too little healing response. 

Most complications are treatable with medications or further surgery.

During the healing process, most people can expect to experience at least some of the following side effects:

• Since small amounts of the removed tissue regenerate.
• The laser is programmed to take this into account and to remove enough tissue for the eye to stabilize at the desired correction,
• Therefore, the initial effect may seem to be overcorrection,

• Increased sensitivity to light,

• Halo effect from bright lights at night,

• Decreased visual clarity in dim light, and

• Slightly drier eyes in effects of prk surgery.

In performing LASIK surgery, the surgeon first uses a special oscillating blade to make a partial cut

Through ¼ to 1/3 of the front surface of the cornea, creating a flap of clear tissue on the central part of the eye. 

The patient is then positioned under the excimer laser

Which is programmed to vaporize away some of the internal corneal tissue under the flap in Side effects of prk surgery.

Central tissue is removed to reduce curvature and correct nearsightedness. 

Peripheral tissue is removed to increase curvature and correct farsightedness. 

Astigmatism can be corrected by removing selected tissue to even out the irregular curvature of the cornea. 

After the laser has removed the selected tissue, the flap is closed over the eye. 

The cornea has extraordinary natural bonding qualities that allow effective healing without the use of stitches. 

The entire procedure takes about 15 minutes, but a comprehensive examination and consultation are necessary before surgery.

  Patients remain awake with only the designated eye anesthetized with drops. 

Good vision is often possible on the day following the surgery.  Eye drops and night protection are necessary for a period of time in Side effects of prk surgery.

Continue...