PMID- 10609240
OWN - NLM
STAT- MEDLINE
DCOM- 20000127
LR  - 20091111
IS  - 0023-2165 (Print)
IS  - 0023-2165 (Linking)
VI  - 215
IP  - 5
DP  - 1999 Nov
TI  - [Photoastigmatic refractive keratectomy for low, moderate, and high astigmatism 
      using a broad beam excimer laser: evaluataion according to new international 
      criteria].
PG  - 267-74
AB  - BACKGROUND: Photorefractive keratectomy (PRK) is an accepted procedure to correct 
      myopia in Germany. The purpose of this study was to evaluate photoastigmatic 
      refractive keratectomy (PARK) for myopic astigmatism. MATERIAL AND METHODS: PARK 
      using the VISX 20/20 excimer laser was performed in 50 eyes of 36 patients (25 
      female, 16 male) aged 22 to 68 years (mean 38 +/- 10 years) in the period of 1995 
      to 1996. Retrospective evaluation was done after dividing the patients into three 
      astigmatic groups between -0.5 diopters (D) and -1.5 D (group I, n = 28), between 
      -1.75 D and -3.0 D (group II, n = 16) und between -3.25 D and -5.5 D (group III, 
      n = 6). The correction of myopic astigmatism was assessed concerning the criteria 
      safety, efficacy, predictability and stability. Mean follow-up was 12 months 
      (8-15 months). RESULTS: Seventy-eight % of all eyes achieved an uncorrected 
      visual acuity of > 0.5. Sixty-eight % of the eyes were within +/- 1.0 D of the 
      desired correction. Loss of 2 or more lines of best corrected visual acuity 
      occurred in 6 eyes (12.0%). We observed in group I an astigmatic reduction of 
      36.0%, in group II of 66.5% and in group III of 68.0%. The surgically induced 
      astigmatism was calculated with 1.29 +/- 1.0 D. Mean axis rotation of the 
      refractive cylinder was 22.12 +/- 23.05 degrees. CONCLUSIONS: PARK using the VISX 
      20/20 excimer laser is an acceptable procedure to correct myopic astigmatism. 
      However, the study revealed that astigmatic reduction with a broad beam laser is 
      not yet perfect in terms of efficacy, predictability and safety.
FAU - Schnitzler, E M
AU  - Schnitzler EM
AD  - Johann Wolfgang Goethe-Universitat, Zentrum fur Augenheilkunde, Frankfurt am 
      Main.
FAU - Kohnen, T
AU  - Kohnen T
FAU - Steinkamp, G W
AU  - Steinkamp GW
FAU - Ohrloff, C
AU  - Ohrloff C
LA  - ger
PT  - Comparative Study
PT  - English Abstract
PT  - Journal Article
TT  - Photoastigmatische refraktive Keratektomie fur gering-, mittel- und hochgradig 
      myope Astigmatismen mit einem Broad Beam Excimer Laser: Auswertung 
      refraktiv-chirurgischer Daten nach internationalen Richtlinien.
PL  - Germany
TA  - Klin Monbl Augenheilkd
JT  - Klinische Monatsblatter fur Augenheilkunde
JID - 0014133
SB  - IM
MH  - Adult
MH  - Aged
MH  - Astigmatism/etiology/*surgery
MH  - Cornea/*pathology
MH  - Female
MH  - Humans
MH  - Lasers, Excimer
MH  - Male
MH  - Middle Aged
MH  - Myopia/*surgery
MH  - *Photorefractive Keratectomy/adverse effects/methods
MH  - Retrospective Studies
MH  - Severity of Illness Index
MH  - Treatment Outcome
MH  - Visual Acuity
EDAT- 1999/12/28 00:00
MHDA- 1999/12/28 00:01
CRDT- 1999/12/28 00:00
PHST- 1999/12/28 00:00 [pubmed]
PHST- 1999/12/28 00:01 [medline]
PHST- 1999/12/28 00:00 [entrez]
AID - 10.1055/s-2008-1034713 [doi]
PST - ppublish
SO  - Klin Monbl Augenheilkd. 1999 Nov;215(5):267-74. doi: 10.1055/s-2008-1034713.