Comparison of the Two Methods, LASIK and ICL in Mild and High Hyperopia
Correction – Part One
Horáčková M., Vlková E., Loukotová V., Hlinomazová Z.
Oftalmologická klinika LF MU a FN, Brno pracoviště Bohunice, přednosta prof. MUDr. Eva Vlková, CSc. |
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Summary:
The problems of hyperopia surgical correction are complicated. The most used
methods are corneal laser treatments (PRK and LASIK), phakic intraocular lenses
or clear lens extraction (CLE). The aim of the study was to evaluate and to
compare long-term postoperative results of two types of refractive procedures
in mild and high hyperopia correction: LASIK and ICL (phakic intraocular posterior
chamber contact lens) implantation. The authors evaluated a group of
37 eyes of 20 patients; the average age was 36.3 years ± 11.8 (SD) and the followup
period 28.1 months ± 10.2 (SD) after LASIK procedure, and group of 21 eyes
of 13 patients; the average age was 28.6 years ± 6.1 (SD) and the follow-up period
30.4 months ± 20.9 (SD) after the ICL implantation. The final uncorrected
(UCVA) and best-corrected visual acuity (BCVA) and postoperative refractive
error (for far and near) and their development in time were compared. They
found statistically significant improvement of the UCVA postoperatively comparing
to the preoperative values in both methods (LASIK and ICL) (p < 0.05).
Better UCVA was achieved by means of ICL implantation (p < 0.05). The BCVA
improved after the ICL implantation only (p > 0.05). In hyperopic LASIK, the final
BCVA worsened comparing to this before treatment (p > 0.05). The BCVA
changes were not statistically significant. The authors also proved better final
spherical refraction for far (p < 0.05 in the first and second year) and for the
near as well (p < 0.05 in the first and second year) in the ICL method comparing
to the hyperopic LASIK. The stableness of the postoperative refraction was better
after the ICL implantation during the whole follow up period. In the laser
treatment, the continuous regression of the postoperative refraction was evident.
The final cylindrical refraction value was also lower in the ICL group
(p > 0.05). The stableness of the postoperative cylindrical refraction was also
higher in the ICL method during the whole follow up period. Conclusion: Comparing
the intraocular procedure (ICL) to the laser method (LASIK), the ICL implantation
demonstrates better final BCVA and UCVA and the postoperative
refraction is more stable.
Key words:
hyperopia, LASIK, ICL
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