PRK
PRK (short for photo refractive keratectomy) is the second
most popular refractive surgery after LASIK. In fact, PRK
preceded LASIK and is performed in much the same manner, using similar
techniques.
Although PRK is performed less widely now than at the height of its
popularity some years ago, PRK remains the method of choice for vision
correction in certain populations. Doctors recommend PRK for patients
who have thin corneas or larger pupils. There are certain disadvantages
to PRK in comparison to LASIK, specifically that the healing time is
longer, and patients electing for PRK usually report more pain or discomfort
than LASIK patients. This is due in part to PRK’s method of tissue
reduction: whereas LASIK slices a thin flap in the cornea, PRK requires
the doctor to remove surface tissue, increasing the time required for
healing. Candidates for PRK include both nearsighted and farsighted
persons, although the methods of PRK surgery vary slightly depending
upon the type of vision correction required. The entire PRK procedure
usually takes under an hour, with the actual exposure of the eye to
the PRK laser lasting less than one minute per eye. Classified as an “ambulatory
surgery,” PRK is conducted on an outpatient basis, with individuals
usually coming into the facility, having their PRK surgery performed,
and returning home shortly thereafter. (The convenience factor is one
of the major attractions to PRK for individuals looking at vision correction
options.)
If you would like to learn more facts about PRK,
select
a state below for a consultation.