No abstract

The 24-month results demonstrate that GATT is relatively safe and effective in treating various forms of open-angle glaucoma. The long-term results for GATT are relatively equivalent to those previously reported for GATT and ab externo trabeculotomy studies.

The preliminary results and safety for GATT, a minimally invasive conjunctival sparing circumferential trabeculotomy, are promising and at least equivalent to previous results for ab externo trabeculotomy for the treatment of PCG and JOAG. All eyes in the study were considered a clinical success.

When a secondary IOL cannot be placed within the capsular bag, sulcus with optic capture is the best alternative, followed by sulcus without optic capture. There was no difference in visual acuity outcomes between transscleral-sutured IOLs, iris-fixated IOLs, and AC IOLs. Anterior chamber IOLs resulted in fewer early complications.

Drs. Koch, Weikert, and Wang received research support from Ziemer USA, Inc. No other author has a financial or proprietary interest in any material or method mentioned.

In eyes with normal ALs, taking preoperative ACD values into consideration might improve refractive outcomes.

Multifocal IOL exchange can be performed safely with good visual outcomes using different types of IOLs. A lower refractive prediction error and a higher likelihood of 20/40 or better vision can be achieved with the implantation of the second IOL compared with the original multifocal IOL, regardless of the final IOL position.

Purpose: To evaluate the repeatability and between-machine/operator reproducibility of optical coherence tomography (RTVue-XR) for mapping corneal epithelial thickness (ET) and corneal thickness (CT) over a 9-mm zone. Methods: In 5 groups of eyes (normal, contact lens, dry eye, post-LASIK/PRK, and keratoconus), corneal ET and CT were evaluated in 25 areas in the following 4 regions: 1) 1 central zone within 0 to 2.0 mm diameter, 2) 8 paracentral zones from 2.0 to 5.0 mm diameter, 3) 8 midperipheral zones from 5.0 to 7.0 mm diameter, and 4) 8 peripheral zones from 7.0 to 9.0 mm diameter. Three devices with designated operators were used to obtain 3 scans per device for each eye. The repeatability, reproducibility, and coefficient of variation were calculated. Results: For all areas up to 9 mm diameter, in normal eyes, contact lens eyes, dry eyes, post- LASIK/PRK eyes, and keratoconic eyes, repeatability and reproducibility ranged from 0.7 to 1.5, 1.0 to 2.6, 0.9 to 2.0, 0.7 to 2.5, and 1.1 to 2.3 μm for ET and 1.5 to 8.3, 2.3 to 12.1, 1.7 to 14.2, 1.4 to 13.7, and 6.9 to 18.9 μm for CT, respectively. The ranges of coefficient of variation values were 1.2% to 3.0%, 1.9% to 5.5%, 1.8% to 4.3%, 1.3% to 5.2%, and 2.2% to 4.5% for ET and 0.3% to 1.2%, 0.4% to 1.8%, 0.4% to 2.1%, 0.3% to 2.0%, and 1.2% to 3.0% for CT, respectively. Conclusions: Optical coherence tomography produced excellent repeatability and reproducibility for corneal ET and CT measurements up to a 9-mm zone in normal eyes and eyes with different corneal conditions. The CT measurements in keratoconic eyes were more variable than those in eyes with other corneal conditions.