1 The flap was repositioned with a partial epithelial keratectomy and balance salt saline irrigation of the interface.

2 Conclusion Trepanation and lamellar keratectomy is an effective and dependable method to creat total LSCD model.

3 Photorefractive keratectomy (PRK). PRK is sometimes used if you have a low to moderate degree of nearsightedness or farsightedness, or if you have nearsightedness with astigmatism.

4 ObjectiveTo investigate the effect of excimer laser phototherapeutic keratectomy (PTK) for superficial corneal dystrophy (SCD).

5 ObjectiveTo study the role of mitomycin C(MMC) and hyaluronic acid (HA) on the proliferations of normal and photorefractive keratectomy(PRK) rabbit corneal fibroblasts.

6 Objective: To investigate the cause, pathogenesis, prophylaxis and therapy for corneal fungal ulcers following excimer laser photorefrative keratectomy (PRK).

7 Objective To compare the recovery of corneal sensitivity after laser in situ keratomileusis (LASIK) and laser-assisted subepithelial keratectomy (LASEK).

8 Objective:To evaluate the predictability, stability and safety of excimer laser photorefractive keratectomy (PRK) for correcting the residual myopia and astigmatism after keratotomy (RK).

9 Objective To observe the effect of full thickness lamellar keratoplasty combined with PTK ( photo therapeutic keratectomy ) .

10 Objective: To investigate the feasibility of lamellar keratoplasty combined with photorefractive keratectomy(PRK) and phototherapeutic keratectomy(PTK)and provide theoretical basis for clinical study.

11 Objective To investigate the effect of amniotic membrane transplantation on initial corneal wound healing after photorefractive keratectomy(PRK).

12 ObjectiveTo investigate the correlation between absence of Bowman's membrane and reduction in IOP readings after photorefractive keratectomy(PRK).

13 Objective To observe and evaluate the effect of therapeutic soft contact lenses following photorefractive keratectomy (PRK).

14 ObjectiveTo explore the effectiveness and safety of excimer laser photorefractive keratectomy(PRK) for correction of residual myopia after radial keratotomy(RK).

15 ObjectiveTo investigate the change in corneal surface shapes and refractive powers after photorefractive keratectomy(PRK).

16 Determination of contrast sensitivity function (CSF)and interference visual acuity(IVA) were performed before and after photorefractive keratectomy(PRK)and laser in situ keratomileusis(LASIK).

17 Objective To investigate the influences of intraocular pressure examination with excimer laser photorefractive keratectomy(PRK).

18 Objective:To investigate the treatment of corneal superficial diseases with photo therapeutic keratectomy(PTK).

19 Objective:To evaluate the refractive results of excimer laser photorefractive keratectomy(PRK) performed on low and moderate myopia eyes.

20 ObjectiveTo investigate the safety, efficacy, stability and predictability of laser-assisted subepithelial keratectomy(LASEK)for myopia with thin cornea.