Refractive

ARMOR study update 2017Penny Asbell, MD, explains the latest research findings from the Antibiotic Resistance Monitoring in Ocular micRoorganisms (ARMOR) study.
Taking on surgery in HSV patients
Taking on surgery in HSV patientsCataract and refractive surgeons should use prophylaxis to avoid reactivation of the herpes simplex virus (HSV) in patients with a history of infection with this virus, according to Elizabeth Yeu, MD.
Scleral implant for presbyopia making accommodative gains
Scleral implant for presbyopia making accommodative gainsImplantation of an investigational device for presbyopia resulted in a minimal 2-line increase in distance-corrected near visual acuity and an actual reduction in the amount of near add needed over time, show findings from a single-center, subgroup analysis.
Deeper implantation depth for inlay may enhance visual performanceA comparative analysis suggests placement of a cornea inlay (Kamra, AcuFocus) has improved patient satisfaction, refractive stability, and visual results when placed at 250 μm or deeper in the cornea. Shallower implantation depths may be more prone to refractive instability and lower patient satisfaction.
PiXL appears promising for low myopiaThe use of epi-on photorefractive intrastromal cross linking reduced myopia by about 0.25 D in a small study; In a high-oxygen group, the effect averaged 1.25 D.
SMILE procedure brings potential advantages to hyperopic correctionHyperopic SMILE is being investigated in a prospective study. Early outcomes show good efficacy, safety, and predictability along with some interesting differences compared with hyperopic LASIK.
LASIK, PRK enhancements yield similar safety, efficacy, predictabilityWavefront-guided LASIK and wavefront-guided PRK following previous keratorefractive surgery demonstrate similar safety, efficacy, and predictability and result in comparable wavefront outcomes.
Vector planning delivers superior outcomes for myopic astigmatismExcimer laser treatments using vector planning resulted in less corneal astigmatism, less refractive cylinder, and better unaided visual acuity postoperatively than treatments using manifest refractive treatment parameters alone, according to Noel Alpins, MD.
Visual acuity, other tasks appear unaffected by inlay decentrationDecentration of less than 0.75 mm from a light-constricted pupil with a novel corneal inlay for the surgical correction of presbyopia does not affect visual acuity, task performance, or severity of halos and glare.
Tool provides standard for assessing LASIK patient-reported outcomesA new questionnaire can help assess candidates’ symptoms before LASIK surgery, monitor them for visual symptoms as well as satisfaction after LASIK surgery, and measure the impact any post-LASIK symptoms have on a patient’s ability to function.