PRK retreatments after regressed myopic LASIK

Yavitz, Edward Q

doi:10.1016/s0161-6420(02)01215-0

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among these problems are under-or overcorrections, decentered ablations, and small optical zone ablations that may result in "ghosting" symptoms and night vision problems. [2][3][4][5][6][7][8][9][10][11] In these cases, the refractive surgeon is left with the diffi cult task of improving these visual complaints and the possibility of offering an enhancement procedure. Modern wavefront capture systems and the possibility of wavefront-guided systems have enhanced the refractive surgeon's armamentarium in this regard.…”

Section: Discussionmentioning

confidence: 99%

Wavefront-guided Enhancements Using the WaveLight Excimer Laser in Symptomatic Eyes Previously Treated With LASIK

Kanellopoulos¹,

Lawrence²

2006

J Refract Surg

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Wavefront-guided Enhancements Using the WaveLight Excimer Laser in Symptomatic Eyes Previously Treated With LASIK

Kanellopoulos¹,

Lawrence²

2006

J Refract Surg

View full text Add to dashboard Cite

show abstract

Visual outcomes of topography-guided excimer laser surgery for treatment of patients with irregular astigmatism

Ghoreishi

Beni

2013

Lasers Med Sci

View full text Add to dashboard Cite

The aim of this study was to evaluate the efficacy, safety, and predictability of topography-guided treatments to enhance refractive status following other corneal surgical procedures. In a prospective case series study, 28 consecutive eyes of 26 patients with irregular astigmatism after radial keratotomy, corneal transplant, small hyperopic and myopic excimer laser optical zones, and corneal scars were operated. Laser-assisted in situ keratomileusis (LASIK) (n = 8) and photorefractive keratectomy (PRK) (n = 20) were performed using the ALLEGRETTO WAVE excimer laser and topography-guided customized ablation treatment software. Preoperative and postoperative uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), manifest and cycloplegic refraction, and corneal topography with asphericity were analyzed in 12 months follow-up. Uncorrected visual acuity (UCVA) changed from 0.2 ± 0.2 or (20/100 ± 20/100) to 0.51 ± 0.31 or (20/40 ± 20/60) in the LASIK group (P = 0.01) and from 0.34 ± 0.16 or (20/60 ± 20/120) to 0.5 ± 0.23 or (20/40 ± 20/80) in the PRK group (P = 0.01). Refractive cylinder decreased from -3.2 ± 0.84 diopters (D) to -2.06 ± 0.42 D in the LASIK group (P = 0.07) and from -2.25 ± 0.39 D to -1.5 ± 0.23 D in the PRK group (P = 0.008). Best corrected visual acuity did not change significantly in either group. Topography-guided treatment is effective in correcting the irregular astigmatism after refractive surgery. Topography-guided PRK can significantly reduce irregular astigmatism and increase the UCVA and BCVA.

show abstract

Topography-guided Custom Retreatments in 27 Symptomatic Eyes

Kanellopoulos

2005

J Refract Surg

View full text Add to dashboard Cite

PURPOSE: To evaluate the use of topography-guided ablations for refractive irregularities induced by previous surgery. METHODS: This prospective, non-comparative trial comprised 27 symptomatic eyes with a history of LASIK for myopia that underwent topography-guided treatment with the ALLEGRETTO WAVE system. Pre- and postoperative refraction, uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), corneal asphericity (Q value), low contrast sensitivity, and patient's subjective assessment of improvement were measured. RESULTS: Preoperative data were sphere -0.84±1.37 diopters (D), cylinder -1.55±0.78 D, UCVA 20/49±0.22, BSCVA 20/32±0.15, and Q value 1.46±0.79. Postoperative data at mean 6-month follow-up were: sphere -0.61±0.81 D, cylinder -0.53±0.58 D, UCVA 20/25±0.21 (P<.01), BSCVA 20/21±0.14 (P<.001), and Q value 1.07±0.89. Contrast sensitivity scores improved by 70%. No loss of BSCVA occurred in any patient. CONCLUSIONS: Topography-guided treatments may be effective in correcting the quality of vision. It should be viewed as a possible two-step procedure due to spherical adjustment that may change refraction unpredictably. [J Refract Surg. 2005;21:S513-S518.]

show abstract

PRK retreatments after regressed myopic LASIK

Cited by 3 publications

References 0 publications

Wavefront-guided Enhancements Using the WaveLight Excimer Laser in Symptomatic Eyes Previously Treated With LASIK

Wavefront-guided Enhancements Using the WaveLight Excimer Laser in Symptomatic Eyes Previously Treated With LASIK

Visual outcomes of topography-guided excimer laser surgery for treatment of patients with irregular astigmatism

Topography-guided Custom Retreatments in 27 Symptomatic Eyes

Contact Info

Product

Resources

About