Abstract
Laser in situ keratomileusis (LASIK) has been described as a means to correct hyperopia . Excimer laser correction of hyperopic refractive errors involves the para central removal of a negative meniscus of stromal tissue to indirectly produce central steepening of the anterior corneal surface.
Highlights
Laser in situ keratomileusis (LASIK) has been described as a means to correct hyperopia [1]
The mean Uncorrected Visual Acuity (UCVA) improved from 0.4 ± 0.23 to 0.90 ± 0.21 in Group (A) and from 0.5 ± 0.3 to 0.8 ± 0.2 in Group (B) (P value = 0.023), and the mean Best Corrected Visual Acuity (BCVA), from 0.8 ± 0.2 to 0.97 ± 0.1 and from 0.8 ± 0.2 to 0.8 ± 0.2, respectively (P value = 0.01)
The rapid recovery of Uncorrected Visual Acuity (UCVA) was attributed to the good centration provided by the active tracking system of the laser
Summary
Laser in situ keratomileusis (LASIK) has been described as a means to correct hyperopia [1]. Excimer laser correction of hyperopic refractive errors involves the para central removal of a negative meniscus of stromal tissue to indirectly produce central steepening of the anterior corneal surface [2]. Many parameters, such as corneal curvature, optical zone size, and centration, must be taken into account even in correction of low grade hyperopia [3]. The rapid recovery of Uncorrected Visual Acuity (UCVA) was attributed to the good centration provided by the active tracking system of the laser This was important because long treatment time in hyperopic corrections can produce severe rotational malpositions that can produce varying results [6]. The use of planned off-center ablation to correct hyperopia may help in achieving better visual acuity than centered ablation [7]
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