Related Experiment Video
Updated: Jul 3, 2026
05:46
Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
Published on: September 20, 2024
Wavefront-guided laser in situ keratomileusis retreatment for consecutive hyperopia and compound hyperopic
Simon R Bababeygy1, Christopher I Zoumalan, Fred Y Chien
1Department of Ophthalmology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Journal of Cataract and Refractive Surgery
|July 29, 2008
Summary
Wavefront-guided LASIK effectively treated hyperopia after prior surgery. This safe and predictable procedure improved vision and refractive outcomes for patients needing retreatment.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Optometry
Background:
- Laser in situ keratomileusis (LASIK) is a common refractive surgery.
- Consecutive hyperopia and compound hyperopic astigmatism can occur after initial LASIK.
- Retreatment of refractive errors after LASIK presents unique challenges.
Purpose of the Study:
- To evaluate the efficacy, predictability, and safety of wavefront-guided LASIK for correcting consecutive hyperopia and compound hyperopic astigmatism.
- To assess visual acuity and refractive outcomes following retreatment with wavefront-guided LASIK.
- To analyze changes in higher-order aberrations (HOAs) after the procedure.
Main Methods:
- Retrospective analysis of 19 eyes from 16 patients who underwent wavefront-guided LASIK for post-LASIK hyperopic errors.
- Evaluation of uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), and spherical equivalence at 1 and 3 months postoperatively.
- Analysis of higher-order aberrations (HOAs) and refractive outcomes, including manifest refractive spherical equivalent (MRSE).
Main Results:
- At 3 months, 66.7% of eyes achieved a UCVA of 20/20 or better, and 88.9% were within +/-1.00 D of emmetropia.
- The mean postoperative MRSE was -0.04 D, indicating effective correction of hyperopia.
- No eyes lost 2 or more lines of BSCVA, demonstrating safety and preservation of visual quality.
Conclusions:
- Wavefront-guided LASIK is an effective and predictable retreatment option for consecutive hyperopia and compound hyperopic astigmatism after prior LASIK.
- The procedure demonstrates a favorable safety profile, with no significant loss of best-corrected visual acuity.
- This technique offers a viable solution for patients seeking to correct residual or recurrent hyperopic refractive errors.
Related Concept Videos
01:28Angle Closure Glaucoma: Treatment
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
01:27Open Angle Glaucoma: Treatment
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...