Clinical efficacy of TPRK assisted by smart pulse technology

Abstract

AIM: To observe the early clinical effects of smart pulse technology(SPT)-assisted transepithelial photorefractive keratectomy(TPRK).METHODS: This was a retrospective non-randomized research. There were 260 patients(508 eyes)who were underwent SPT-assisted TPRK surgery. The best corrected visual acuity(BCVA)was recorded at 1 to 2wk before surgery. The uncorrected visual acuity(UCVA)was recorded at 1mo and 3mo after surgery. Corneal epithelial growth status and haze grade were recorded after surgery. Record the degree of pain within 3d after surgery and satisfaction surveys in all patients.RESULTS: After 1mo and 3mo, UCVA(-0.080±0.0798, -0.108±0.089)achieved or even better than preoperative BCVA(-0.050±0.0561). Corneal epithelial wounds were completely repaired in all patients during 5d after operation. In the follow-up of 1mo and 3mo after operation, the corneas of most patients are clear except for 3 cases who had haze in 0-1 grade. Very satisfied patients accounted for 93.0%.CONCLUSION: SPT-TPRK surgery is safe. The average postoperative UCVA can reach or even exceed the preoperative average BCVA.

Keywords

• myopia
• refractive surgery
• smart pulse technology
• transepithelial photorefractive keratectomy
• laser <i>in situ</i> keratomileusis