All:
From Sept. issue of "Journal of Cataract & Refractive Surgery."
Only a matter of time till we see substantial movement, imo.
Best....Skane
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Noncontact thermokeratoplasty to correct hyperopia induced by laser in situ
keratomileusis
Mahmoud M. Ismail, MD, PhD, Jorge L. Ali¢, MD, PhD, Juan J. P‚rez-Santonja, MD
Purpose:
To evaluate the efficacy and safety of noncontact holmium:YAG (Ho:YAG) laser
thermokeratoplasty (LTK) for treating hyperopia induced by laser in situ keratomileusis
(LASIK).
Setting:
Department of Ophthalmology, University of Alicante, Instituto Oftalmol¢gico de Alicante,
Alicante, Spain, and the University of Al-Azhar, Cairo, Egypt.
Methods:
Noncontact LTK was applied to 13 eyes (11 patients) with significant hyperopia after
LASIK using a Ho:YAG laser (model gLase 210, Sunrise Technologies). Mean spherical
equivalent before LTK was +4.60 diopters (D) +- 1.40 (SD) (range +2.50 to +7.25 D).
The results were evaluated 18 months after the LTK surgery.
Results:
A significant myopic shift developed in all eyes that gradually receded to emmetropia 6 to
8 weeks after LTK. After 12 months, refraction was relatively stable. At 18 months, there
was a statistically significant difference between the mean uncorrected visual acuity
(UCVA) before LTK (0.19 +- 0.09) and mean postoperative UCVA (0.61 +- 0.22) (P
<.005). At the end of the study, there was a mean increase of 4.10 +- 1.12 D in central
keratometric power. Total regression did not occur in any eye.
Conclusion:
Noncontact Ho:YAG LTK was safe and effective in correcting LASIK-induced hyperopia.
The cutting of Bowman's layer and a thinner corneal center may contribute to the stability
of LTK in such cases. J Cataract Refract Surg 1998; 24:1191-1194
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