Comparison of IOL powers by corrected method in eyes after PRK and LASIK
Korean Journal of Ophthalmology
;
: 26-31, 2002.
Article
Dans Coréen
| WPRIM
| ID: wpr-195369
ABSTRACT
The purpose of this study is to compare, by statistical analysis, intraocular lens (IOL) powers by SRK/T formula using autorefractokeratometer-measured keratometric (K) values (SRK/T-ARK-mK), by SRK/T formula using refraction-derived K values (SRK/T-R-dK), and by refraction corrected method (RCM), in eyes treated with photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) for myopia. Thirty-eight consecutive eyes of 23 patients with PRK for mild to moderate myopia and 35 consecutive eyes of 25 patients with LASIK for high myopia were followed up for more than 1 year. In the two groups, IOL powers by SRK/T-ARK-mK, by SRK/T-R-dK, and by RCM were compared by statistical analysis. In PRK group, the mean value of IOL powers by RCM was statistically higher than that obtained by the other two methods (p 0.05). However, in LASIK group, the mean values of IOL powers by RCM and by SRK/T-R-dK, which did not differ statistically (p > 0.05), were both statistically higher than that by SRK/T-ARK-mK (p < 0.05). In conclusion, there is a statistical difference in IOL powers by the methods used for IOL calculation, as there is according to the level of myopia in patients with PRK and LASIK treatment. We suggest that, in IOL power calculation in eyes with previous corneal refractive surgery, correction methods such as RCM and SRK/T-R-dK are more effective at higher levels of myopia.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Période postopératoire
/
Étude comparative
/
Études prospectives
/
Photokératectomie réfractive
/
Cornée
/
Kératomileusis in situ avec laser excimère
/
Optique et photonique
/
Lentilles intraoculaires
/
Myopie
Type d'étude:
Étude observationnelle
Limites du sujet:
Adulte
/
Femelle
/
Humains
/
Mâle
langue:
Coréen
Texte intégral:
Korean Journal of Ophthalmology
Année:
2002
Type:
Article
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