Refractive Surgery

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Surgeons look to PRK to enhance previous LASIK

William B. Trattler, MD, provides an overview of LASIK enhancements and explains why he frequently uses PRK for this purpose.

LATEST ARTICLES

Surgeons look to PRK to enhance previous LASIK

William B. Trattler, MD, provides an overview of LASIK enhancements and explains why he frequently uses PRK for this purpose.

When screening patiens for keratectasia risk, corneal biomechanical measurements are helpful

Researchers are looking into corneal biomechanics as a means to screen patients for keratectasia. An expert reviews signal interpretation from a non-contact applanation tonometer as it relates to corneal biomechanical indices such as corneal hysteresis and also discusses improved signal patterns that may result in more meaningful corneal biomechanical analysis than previously proposed metrics.

Risk of visual symptoms postLASIK is not predicted by large preoperative pupil size

A prospective study including 51 patients who underwent bilateral wavefront-guided LASIK for low to moderate myopia assessed visual symptoms at follow-up visits through 12 months after surgery. There was no evidence that large preoperative pupil size correlated with increased risk of unwanted postLASIK symptoms.

Post-LASIK healing rate may be increased by hypromellose gel

Hypromellose 0.3% gel (GenTeal Gel, Novartis Ophthalmics) may increase the rate of re-epithelialization of the gutter around LASIK flaps during the first postoperative week.

PostLASIK dry eye treatment using sodium hyaluronate-based artificial tear found beneficial

The benefits of two artificial tear products were compared in a head-to-head, randomized, contralateral eye-controlled study enrolling 40 patients undergoing bilateral LASIK. Wavefront analysis was used for the primary outcome assessment of quality of vision and favored use of a sodium hyaluronate-based product (Blink Tears, Abbott Medical Optics).