October 2016

 

ASCRS • ASOA UPDATE

 

In the Journal of Cataract & Refractive Surgery October 2016


 
   

Influence of blurred vision, accommodation, and target laser settings on eye movements during LASIK

Anna Christina Sasse, MD, Mehdi Shajari, MD, Thomas Kohnen, MD

In this prospective randomized study, investigators considered how eye movements during LASIK would be affected by blurred vision, accommodation, and target laser settings. Included here were 11 eyes of 11 patients that underwent simulated LASIK treatment. Although the treatment laser was blocked, each patient was told to focus on the fixation light. A soft contact lens that had undergone a 5 D myopic laser treatment placed on the patient’s eye was used to simulate blurred vision. A second lens that equaled the patient’s spherical equivalent plus an additional 3 D was used to diminish accommodation. Patients were then tested wearing the blurred lens with the target light on and with it turned off and then again wearing the 3 D with the target laser on and off. Investigators determined that only in one variable on the y-axis was there any significant difference in the F80 criterion. They concluded that when it came to eye movements during LASIK, blurred vision, accommodation, and target light had little effect.

Surgical treatment of presbyopia with centered presbyopic laser in situ keratomileusis: One-year results

Gaëlle Ho Wang Yin, MD, Colm McAlinden, MB BCh, Emmanuelle Pieri, OD, Claire Giulardi, OD, Guillaume Holweck, MD, Louis Hoffart, MD

Investigators considered how those treated with centered presbyopic LASIK fared in terms of effectiveness, refractive outcomes, and quality of vision. Included in this prospective study were 138 eyes of 69 hyperopic patients who underwent this treatment between February 2013 and January 2015. At 1 year postoperatively investigators found that patients treated with this technique had a mean binocular uncorrected distance visual acuity of 20/20, binocular near visual acuity of Jaeger 2, and binocular uncorrected intermediate visual acuity of 20/20. At the 3-month postoperative mark more than 95% said they were satisfied with the surgery, and at 6 months all would recommend this to others. Investigators concluded that for this group of patients, centered presbyopic LASIK with corneal asphericity modulation was a safe and effective presbyopia treatment.

Objective evaluation of lens clarity following the intravitreal injection of sustained-release dexamethasone implant: Lens densitometry study

Mustafa Alpaslan Anayol, MD, Mehmet Ali Sekeroglu, MD, Hakan Tirhis, MD, Bayram Gulpamuk, MD, Sibel Doguizi, MD, Pelin Yilmazbas, MD

The aim of this prospective case series was to determine how treatment with an intravitreal sustained-release dexamethasone implant affected eyes with macular edema occurring after a retinal vein occlusion compared to healthy controls. Included here were 37 patients with either branch or central retinal vein occlusion. At the 3-month mark investigators found that there was a significant increase in mean lens densitometry value at Pentacam (Oculus, Wetzlar, Germany) densitometry zone 1 in study eyes, when compared to baseline values. However, average and maximum lens densitometry values and lens thickness for zones 2 and 3 were similar at baseline and the 3-month post-injection mark, as was the densitometry for control eyes. Investigators concluded that at the 3-month mark after injection of the dexamethasone implant for macular edema treatment, there was a significant increase in the study eyes in mean lens densitometry value at zone 1.

In the Journal of Cataract & Refractive Surgery October 2016 In the Journal of Cataract & Refractive Surgery October 2016
Ophthalmology News - EyeWorld Magazine
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2016-10-10T11:42:15Z
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