RT Journal Article T1 Plasma Rich in Growth Factors (PRGF) in Transepithelial Photorefractive Keratectomy (TPRK). A1 Sánchez-González, José-María A1 Alonso-Aliste, Federico A1 Borroni, Davide A1 Amián-Cordero, Jonatan A1 De-Hita-Cantalejo, Concepción A1 Capote-Puente, Raúl A1 Bautista-Llamas, María-José A1 Sánchez-González, María Carmen A1 Rodríguez-Calvo-de-Mora, Marina A1 Rocha-de-Lossada, Carlos K1 photorefractive keratectomy K1 plasma rich in growth factor K1 refractive outcomes K1 transepithelial photorefractive keratectomy K1 visual outcomes AB To evaluate the usage of plasma rich in growth factor (PRGF) in transepithelial photorefractive keratectomy (TPRK) in low and moderate myopia, patients who underwent myopic and astigmatism TPRK with PRGF were involved in this retrospective, observational study. Subjects underwent a surgical procedure between February 2019 and June 2019. A three-month follow-up was recorded. Pain score was assessed with a visual analogue scale (0-10) and re-epithelialization time recorded. A total of 48 eyes from 24 patients were recruited. Mean uncorrected distance visual acuity (UDVA) was 20/20.31 (0.00 ± 0.02 LogMAR). A total of 98% of eyes did not change corrected distance visual acuity (CDVA) lines. Two percent of eyes lost one line of CDVA. Preoperative spherical equivalent was -2.67 ± 1.37 D and after three months changed to -0.21 ± 0.34 D, and 2% of eyes changed 0.50 D or more between one and three months. Pain score was 3.29 ± 0.61 (3 to 6) score points at day one and 0.08 ± 0.27 score points at day seven. Finally, re-epithelialization time was 2.50 ± 1.20 days. PRGF addition to conventional refractive treatment such as TPRK seems to alleviate immediate postoperative pain and positively contribute to corneal re-epithelization time. SN 2077-0383 YR 2021 FD 2021-04-30 LK http://hdl.handle.net/10668/17745 UL http://hdl.handle.net/10668/17745 LA en DS RISalud RD Apr 18, 2025