Abstract
BACKGROUND: The efficacy of a new ablation algorithm for the correction of hyperopic astigmatism with the Nidek EC-5000 excimer laser was evaluated. METHODS: Twenty-five eyes with mean preoperative hyperopia of +3.76 ± 1.70 D and a mean hyperopic cylinder of 2.20 ± 0.80 D underwent photorefractive keratectomy (PRK) using a new algorithm with the Nidek EC-5000 excimer laser (software version 3.0). The new algorithm differed from previous algorithms in that less tissue was removed for the same amount of diopters, and there was less of a dioptric gradient between the optical zone and the transition zone. Mean preoperative spectacle-corrected visual acuity was 0.8 ± 0.09. Minimum follow-up was 6 months. RESULTS: Mean postoperative spectacle corrected visual acuity (geometric mean) increased significantly to 0.89 ± 0.1. The mean sphere decreased by 3.08 D and the mean cylinder by 1.60 D. CONCLUSION: Hyperopic PRK using the Nidek EC-5000 excimer laser with this new algorithm for hyperopic astigmatism appears to be safe and effective.
| Original language | English |
|---|---|
| Journal | Journal of Refractive Surgery |
| Volume | 15 |
| Issue number | 2 SUPPL. |
| Publication status | Published - 1999 |
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ASJC Scopus subject areas
- Ophthalmology
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Algorithm to correct hyperopic astigmatism with the Nidek EC-5000 excimer laser. / Vinciguerra, P.; Epstein, D.; Azzolini, M.; Radice, P.; Sborgia, M.
In: Journal of Refractive Surgery, Vol. 15, No. 2 SUPPL., 1999.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Algorithm to correct hyperopic astigmatism with the Nidek EC-5000 excimer laser
AU - Vinciguerra, P.
AU - Epstein, D.
AU - Azzolini, M.
AU - Radice, P.
AU - Sborgia, M.
PY - 1999
Y1 - 1999
N2 - BACKGROUND: The efficacy of a new ablation algorithm for the correction of hyperopic astigmatism with the Nidek EC-5000 excimer laser was evaluated. METHODS: Twenty-five eyes with mean preoperative hyperopia of +3.76 ± 1.70 D and a mean hyperopic cylinder of 2.20 ± 0.80 D underwent photorefractive keratectomy (PRK) using a new algorithm with the Nidek EC-5000 excimer laser (software version 3.0). The new algorithm differed from previous algorithms in that less tissue was removed for the same amount of diopters, and there was less of a dioptric gradient between the optical zone and the transition zone. Mean preoperative spectacle-corrected visual acuity was 0.8 ± 0.09. Minimum follow-up was 6 months. RESULTS: Mean postoperative spectacle corrected visual acuity (geometric mean) increased significantly to 0.89 ± 0.1. The mean sphere decreased by 3.08 D and the mean cylinder by 1.60 D. CONCLUSION: Hyperopic PRK using the Nidek EC-5000 excimer laser with this new algorithm for hyperopic astigmatism appears to be safe and effective.
AB - BACKGROUND: The efficacy of a new ablation algorithm for the correction of hyperopic astigmatism with the Nidek EC-5000 excimer laser was evaluated. METHODS: Twenty-five eyes with mean preoperative hyperopia of +3.76 ± 1.70 D and a mean hyperopic cylinder of 2.20 ± 0.80 D underwent photorefractive keratectomy (PRK) using a new algorithm with the Nidek EC-5000 excimer laser (software version 3.0). The new algorithm differed from previous algorithms in that less tissue was removed for the same amount of diopters, and there was less of a dioptric gradient between the optical zone and the transition zone. Mean preoperative spectacle-corrected visual acuity was 0.8 ± 0.09. Minimum follow-up was 6 months. RESULTS: Mean postoperative spectacle corrected visual acuity (geometric mean) increased significantly to 0.89 ± 0.1. The mean sphere decreased by 3.08 D and the mean cylinder by 1.60 D. CONCLUSION: Hyperopic PRK using the Nidek EC-5000 excimer laser with this new algorithm for hyperopic astigmatism appears to be safe and effective.
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M3 - Article
VL - 15
JO - Journal of Refractive Surgery
JF - Journal of Refractive Surgery
SN - 1081-597X
IS - 2 SUPPL.
ER -