A Multicenter Retrospective Survey of Refractive Surgery in 78,248 Eyes
LASIK and phakic intraocular lens (IOL) implantation have received worldwide recognition as popular surgical approaches for the correction of refractive errors. To date, there have been several nationwide surveys of refractive surgery from Japan,1 –4 New Zealand,5–8 the United States,9,10 and Korea,11 and longitudinal data from the United States. After an outbreak of infectious keratitis occurred in a single center,12 and after attention arousing information was provided by the consumer agency of Japan, the number of refractive surgery pr ocedures performed in Japan was estimated to decrease (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - September 7, 2017 Category: Opthalmology Authors: Kazutaka Kamiya, MD, PhD Source Type: research
Ciliary Muscle Electrostimulation to Restore Accommodation in Patients With Early Presbyopia: Preliminary Results
Presbyopia, from the Greek words presbys meaning “old man” and ops meaning to “see like,” is the inability to comfortably focus on close objects due to aging. This is the most common physiologic alteration of eye-sight, affecting more than 1.2 billion individuals worldwide, and leads to a major impact on productivity among healthy adults.1 Presbyopia also significantly affects quality of life in both developed and developing countries.2 Unlike ametropic defects or refractive errors (myopia, hyperopia, and astigmatism), caused by genetic and environmental conditions that affect the shape of (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - September 7, 2017 Category: Opthalmology Authors: Luca Gualdi, MD Source Type: research
Femtosecond Laser –Assisted Intraocular Lens Fragmentation: Low Energy Transection
We describe a novel technique for in vivo hydrophobic IOL transection with low energy (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - September 7, 2017 Category: Opthalmology Authors: Natalia S. Anisimova, MD Source Type: research
Topography-Guided Photorefractive Keratectomy in the Treatment of Corneal Scarring
Corneal scarring can substantially impair visual acuity, either directly, via opacification of the visual axis, by altering corneal optics through stromal remodeling or by induction of significant irregularity of the corneal surface, which may manifest as regular and irregular astigmatism.1 Management of corneal scars and the induced corneal irregularity can be challenging. Treatment options may include: rigid gas-permeable or scleral contact lenses, superficial keratectomy, phototherapeutic keratectomy (PTK), photorefractive keratectomy (PRK), or keratoplasty (either lamellar or (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - September 7, 2017 Category: Opthalmology Authors: Nir Sorkin, MD Source Type: research
Comparison of Corneal Deformation Parameters in Keratoconic and Normal Eyes Using a Non-contact Tonometer With a Dynamic Ultra-High-Speed Scheimpflug Camera
Historically, keratoconus evaluation has been based on clinical examination and diagnostic information such as corneal topography, tomography, and corneal thickness distribution. It has been suggested that the inability to directly measure biomechanical parameters of the cornea has been a limitation for in vivo evaluation of the cornea.1 The fact remains that biomechanical properties are involved in maintaining corneal geometrical and optical properties.2,3 In 2005, the Ocular Response Analyzer (ORA; Reichert Ophthalmic Instruments, Depew, NY) was introduced as a non-contact tonometer that (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - September 7, 2017 Category: Opthalmology Authors: Ryan N. Mercer, MD Source Type: research
Outcomes of Toric Iris-Claw Phakic Intraocular Lens Implantation After Deep Anterior Lamellar Keratoplasty for Keratoconus
CONCLUSIONS:</span><p>The implantation of a toric iris-claw phakic IOL has shown high efficacy and safety in this series and may be considered as a reasonable option for the management of refractive errors after DALK.</p><p><b>[<i>J Refract Surg.</i> 2017;33(8):538 –544.]</b></p></div> (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - August 9, 2017 Category: Opthalmology Source Type: research
Corneal Biomechanics After Accelerated Cross-linking: Comparison Between 18 and 9 mW/cm2 Protocols
CONCLUSIONS:</span><p>At 1 year after cross-linking in cases of mild and moderate keratoconus, corneal biomechanics appeared stable or stronger than baseline with both 5- and 10-minute protocols. However, mild cases who had the 5-minute protocol showed better improvement based on Corvis ST indices.</p><p><b>[<i>J Refract Surg.</i> 2017;33(8):558 –562.]</b></p></div> (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - August 9, 2017 Category: Opthalmology Source Type: research
Capsule-Fixated Intraocular Lens Implantation in Small Pupil Cases
CONCLUSIONS:</span><p>With the described technique, capsulefixated IOLs can be implanted in eyes with small pupil easily and safely. This type of IOL has great potential to improve the refractive outcome by better prediction of the postoperative IOL position and eliminating IOL rotation after cataract surgery.</p><p><b>[<i>J Refract Surg.</i> 2017;33(8):568 –570.]</b></p></div> (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - August 9, 2017 Category: Opthalmology Source Type: research
The Effect of the Crystalline Lens on Central Vault After Implantable Collamer Lens Implantation
CONCLUSIONS:</span><p>The crystalline lens could have an important influence on postoperative vault. Eyes with a shallower anterior chamber and a forward lens position will have lower vaults.</p><p><b>[<i>J Refract Surg.</i> 2017;33(8):519 –523.]</b></p></div> (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - August 9, 2017 Category: Opthalmology Source Type: research
Repeatability, Reproducibility, and Agreement of Two Scheimpflug-Placido Anterior Corneal Analyzers for Posterior Corneal Surface Measurement
CONCLUSIONS:</span><p>Both Scheimpflug-Placido systems show high repeatability and reproducibility for posterior corneal surface measurement. A high concordance between the two devices suggests interchangeable use in normal eyes.</p><p><b>[<i>J Refract Surg.</i> 2017;33(8):524 –530.]</b></p></div> (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - August 9, 2017 Category: Opthalmology Source Type: research
Results of Intraoperative Manual Cyclotorsion Compensation for Myopic Astigmatism in Patients Undergoing Small Incision Lenticule Extraction (SMILE)
CONCLUSIONS:</span><p>Manual compensation may be a safe, feasible, and effective approach to refine the results of astigmatism with SMILE, especially in higher degrees of cylinders.</p><p><b>[<i>J Refract Surg.</i> 2017;33(8):506 –512.]</b></p></div> (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - August 9, 2017 Category: Opthalmology Source Type: research
Lenticuloschisis: A “No Dissection” Technique for Lenticule Extraction in Small Incision Lenticule Extraction
CONCLUSIONS:</span><p>No dissection lenticule removal is a feasible and reproducible technique that may result in better immediate visual quality compared to the conventional SMILE technique.</p><p><b>[<i>J Refract Surg.</i> 2017;33(8):563 –566.]</b></p></div> (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - August 9, 2017 Category: Opthalmology Source Type: research
Planning for Coupling Effects in Bitoric Mixed Astigmatism Ablative Treatments
CONCLUSIONS:</span><p>Bitoric mixed astigmatism ablative treatments may display non-trivial coupling effects. Historical coupling adjustments should be taken into consideration when planning mixed astigmatism treatments to improve surgical outcomes.</p><p><b>[<i>J Refract Surg.</i> 2017;33(8):545 –551.]</b></p></div> (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - August 9, 2017 Category: Opthalmology Source Type: research
Tomography-Guided Customized CXL
<p>Click<a href="~/link.aspx?_id=910549D2C659420187CB207A46E70D65&_z=z">here</a> to read the article.</p> (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - August 9, 2017 Category: Opthalmology Source Type: research
Assessing Repeatability of Pupillometric Measurements in the Eyes of Refractive Surgery Candidates Using Infrared Pupillometer
CONCLUSIONS:</span><p>In all groups, the Topolyzer Vario showed excellent repeatability when measuring pupil dynamic parameters except when measuring pupil center shift and distance between the pupil center and the corneal vertex along the vertical axis.</p><p><b>[<i>J Refract Surg.</i> 2017;33(8):552 –557.]</b></p></div> (Source: Journal of Refractive Surgery)
Source: Journal of Refractive Surgery - August 9, 2017 Category: Opthalmology Source Type: research
