Document Detail

Phototherapeutic keratectomy for decentration and central islands after photorefractive keratectomy.
MedLine Citation:
PMID:  11237909     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To determine visual outcomes after treatment of decentration and central islands occurring after photorefractive keratectomy (PRK). DESIGN: Retrospective, noncomparative case series. PARTICIPANTS: Patients (n = 14) who exhibited decentration or central islands after PRK and photoastigmatic keratectomy (PARK). METHODS: Fourteen eyes with post-PRK decentration (group I) or central islands (group II) were treated by transepithelial phototherapeutic keratectomy guided by epithelial fluorescence without modulating agents, and subsequently were treated with PRK or PARK. Mean follow-up time was 9 months (range, 45 days-21 months). MAIN OUTCOME MEASURES: We analyzed pre- and postoperative keratometry, refractive errors, uncorrected visual acuity (UCVA), best-corrected visual acuity, and haze. In group I, we also measured pre- and postoperative decentration; in group II, we compared pre- and postoperative central island power. RESULTS: Group I showed improvement in centration (P = 0.003). Group II showed decreased central island power (P = 0.18). -LogMAR UCVA improved from 0.59 (20/80(+1)) to 0.17 (20/30) (P = 0.03) and from 0.74 (20/100(-1)) to 0.21 (20/30(-1)) (P = 0.01) after retreatment of groups I and II, respectively. CONCLUSIONS: Retreatment of patients having decentration and central islands after PRK results in improved visual outcomes.
M D Rachid; S H Yoo; D T Azar
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Ophthalmology     Volume:  108     ISSN:  0161-6420     ISO Abbreviation:  Ophthalmology     Publication Date:  2001 Mar 
Date Detail:
Created Date:  2001-03-12     Completed Date:  2001-03-22     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7802443     Medline TA:  Ophthalmology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  545-52     Citation Subset:  IM    
Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts 02114, USA.
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MeSH Terms
Cornea / pathology,  surgery*
Corneal Topography
Epithelium, Corneal / surgery
Follow-Up Studies
Lasers, Excimer
Photorefractive Keratectomy* / adverse effects
Postoperative Complications / pathology,  surgery*
Refractive Errors / pathology
Refractive Surgical Procedures*
Retrospective Studies
Time Factors
Visual Acuity
Wound Healing
Grant Support
Comment In:
Ophthalmology. 2001 Nov;108(11):1935-6   [PMID:  11713052 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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