PURPOSE: To evaluate the clinical outcomes of intrastromal corneal ring segment (ICRS) implantation to correct @entity4122 in eyes with prior refractive surgery. METHODS: Forty-one eyes of 25 @entity1 (13 @entity1 , 12 @entity1 ; mean age, 28.66 years) with @entity4122 after refractive surgery [photorefractive keratectomy (PRK) or laser in situ keratomileusis (LASIK)] were included in a nonrandomized, retrospective, observational case series. Corneal tunnels were created by mechanical dissection in all eyes. Main outcome measures included uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BCVA), refraction, keratometry, and computerized analysis of corneal topography. @entity1 were divided into two groups by the type of refractive surgery (Group A: PRK, Group B: LASIK). RESULTS: The mean preoperative manifest @entity940 decreased from -1.88 to -0.84 D in Group A (p=0.096) and -3.18 to -1.77 D in Group B (p=0.000). The mean keratometric @entity940 decreased from -2.58 to -1.66 D in Group A (p=0.010) and -4.80 to -2.78 D in Group B (p=0.000). The mean spherical equivalent decreased from -2.97 to -2.05 D in Group A (p=0.065) and -3.31 to -2.42 D in Group B (p=0.014). No significant between-group differences were noted on the comparison of preoperative and postoperative results. No @entity260 were observed. CONCLUSION: ICRS implantation is a useful treatment option for @entity4122 following refractive surgery, and it has significantly reduced the refractive cylinder and increased best spectacle-corrected visual acuity.

Intrastromal corneal ring segment implantation for XXXX after refractive surgery.

@entity1 :: ('9606', 'Species') :: ['women', 'Patients', 'patients', 'men'] @entity4122 :: ('MESH:D004108', 'Disease') :: ['ectasia'] @entity940 :: ('MESH:D001251', 'Disease') :: ['astigmatism'] @entity260 :: ('MESH:D011183', 'Disease') :: ['intraoperative or postoperative complications']
@entity4122 :: (MESH:D004108,Disease) :: ['ectasia']
