Results of phototherapeutic keratectomy in the management of flap striae after LASIK before and after developing a standardized protocol: long-term follow-up of an expanded patient population.

Abstract:

OBJECTIVE:To evaluate the efficacy and safety of phototherapeutic keratectomy (PTK) for treatment of striae in LASIK flaps. DESIGN:Retrospective consecutive series. PARTICIPANTS:Forty-seven eyes of 44 patients with flap striae after LASIK with reduced best-corrected visual acuity (VA) or visual symptoms with at least 3 months' follow-up (consecutive cases from January 2001 to May 2004). INTERVENTION:Transepithelial PTK. MAIN OUTCOME MEASURES:Uncorrected VA (UCVA), best spectacle-corrected VA (BSCVA), resolution or reduction of preoperative symptoms, and corneal haze. RESULTS:Mean UCVA and BSCVA improved from 20/43 and 20/29 to 20/33 and 20/23, respectively. Five eyes (10%) developed 1+ haze and 14 eyes (30%) developed trace haze, generally peaking at 1 to 2 months postoperatively. No visual symptoms or loss of acuity were attributable to haze. A mean hyperopic shift of +0.80 diopters (D) occurred after PTK treatment. Development of a standardized protocol significantly reduced the variability of the refractive shift after PTK (P = 0.003). Results were stable in up to 2 years of follow-up. CONCLUSIONS:Phototherapeutic keratectomy treatment of LASIK flaps is well tolerated, with stable outcomes and minimal complications. A standardized treatment protocol reduced postoperative refractive variability.

journal_name

Ophthalmology

journal_title

Ophthalmology

authors

Ashrafzadeh A,Steinert RF

doi

10.1016/j.ophtha.2006.09.023

subject

Has Abstract

pub_date

2007-06-01 00:00:00

pages

1118-23

issue

6

eissn

0161-6420

issn

1549-4713

pii

S0161-6420(06)01325-X

journal_volume

114

pub_type

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