PRK, or laser photorefractive keratectomy, has the advantage of a wide range of clinical applications and the disadvantage of more postoperative complications. PRK has a wide range of clinical applications and is suitable for all kinds of refractive errors including corneal astigmatism; it achieves the effect of myopia correction by decreasing the refractive power of the anterior surface of the cornea. Clinically, for myopic corneal astigmatism greater than 3D, PRK is well tolerated and effective, and patients’ postoperative corneal astigmatism can be reduced to less than 1D; for patients with mixed corneal astigmatism that is greater than 3D preoperatively, patients can achieve postoperative residual astigmatism of less than 1D. The disadvantage of PRK is that there are more postoperative complications because of the loss of the anterior elastic layer of the cornea, the postoperative physiological healing time of the corneal epithelium is long, the patient’s ocular discomfort is obvious, and the need for long-term medication is very easy to regress. At the same time, PRK is prone to postoperative complications, such as corneal subepithelial haze, refractive regression, postoperative eye pain, etc., postoperative visual acuity recovery is slower, and refractive status is unstable; at present, it has been gradually replaced by stromal cutting surgery in the clinic. It is recommended that patients go to regular hospitals for treatment in time according to their own symptoms, so as not to delay the condition and cause serious consequences.