Simultaneous Bilateral Cataract Extraction: ECCE versus ICCE

In a retrospective study, 24 patients who had undergone simultaneous bilateral trabeculectomy over a 6-year period were reviewed. The duration of disease was at least 2 years, indicating that surgery was not performed as a primary procedure. No patients suffered complications leading to bilateral blindness, although 6 (25%) patients had reduced vision in both eyes at the first postoperative visit, with 3 (13%) worse than 6/36 binocularly. There was no evidence of an asymmetric response in the fall in intraocular pressure following trabeculectomy, after a mean follow-up of over 3 years. Compared with a matched group of patients undergoing unilateral trabeculectomy, the simultaneous bilateral group had a similar period of hospital stay. However, this was no shorter than that found in a group having staged bilateral surgery during the same admission, over the same study period. When separate admissions were required for bilateral drainage operations, though, there was a significant increase in the total length of inpatient stay. No convincing advantage was found for simultaneous bilateral trabeculectomy.

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Black Shank Resistance and Agronomic Performance of Flue‐Cured Tobacco Lines and Hybrids Carrying the Introgressed Nicotiana rustica Region, Wz

Drake

Moore

Bertrand

et al. 2015

Crop Science

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Black shank, caused by Phytophthora nicotianae, is one of the most important diseases affecting tobacco (Nicotiana tabacum L.) production in the United States. Genetic mechanisms are needed that provide resistance to current races and that can be combined into cultivars that provide high yields of cured leaf with acceptable quality. Previous research identified DNA markers associated with an introgressed N. rustica genomic region (designated as Wz) found to contribute to resistance to race 0 and race 1 isolates. Objectives of the current research were to use DNA markers to transfer Wz into the elite genetic background of flue‐cured tobacco cultivar K 326 and to develop nearly isogenic lines and hybrids with and without the race 0 immunity gene Php. These materials were evaluated in multiple environments for black shank resistance, yield, and quality characteristics. Wz was observed to positively affect resistance in the seven diverse disease environments tested. Genotypes in which Wz was combined with Php exhibited the greatest levels of resistance. No evidence of a negative relationship between Wz and yield and/or quality was observed. Data suggest commercial value for Wz in flue‐cured tobacco‐breeding programs with the goal of developing high‐yielding tobacco cultivars with resistance to race 0 and race 1. Further studies are necessary to determine the durability of Wz‐mediated resistance, however.

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Simultaneous Bilateral Cataract Extraction: ECCE versus ICCE

Cited by 3 publications

References 7 publications

Simultaneous surgery for bilateral congenital glaucoma

Simultaneous surgery for bilateral congenital glaucoma

Simultaneous bilateral trabeculectomy

Black Shank Resistance and Agronomic Performance of Flue‐Cured Tobacco Lines and Hybrids Carrying the Introgressed Nicotiana rustica Region, Wz

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