Testing the Sagnac effect with a two-axis cold atom gyroscope

International audienc

Test of the Sagnac effect with dual axis cold atom gyroscope

National audienc

Gender variation in central serous chorioretinopathy

Ophthalmic researc

Gender variation in central serous chorioretinopathy

Background: Comparison of presentation and outcomes of central serous chorioretinopathy (CSC) between male and female subjects in different ethnic populations. Methods: Retrospective comparison between male and female subjects with CSC was completed. Demographic details, clinical presentations, imaging features and treatment outcomes were compared at baseline and at last follow-up. Results: This study included 155 male and 155 female subjects with a mean (CSD) age of 43.8 ± 10.3 and 57.0 ± 12.1 years, respectively, and a mean duration of follow-up of 8.49 ± 12.6 months. At presentation, there was no difference in visual acuity; however, visual acuity was significantly higher for female subjects at last follow-up (p = 0.02). Optical coherence tomography (OCT) analysis showed that subretinal deposits (p < 0.001), hyperreflective foci (p = 0.001), retinal pigment epithelial detachment (p = 0.01) and retinal pigment epithelium (RPE) irregularities (p = 0.03) were higher in male subjects at presentation. Angiographic analysis showed that diffuse leakage and RPE tracts were common in males (p = 0.01 and p = 0.02). No significant differences in choroidal dilatation or diffuse choroidal leakages were noted. Conclusions: Female subjects with CSC appear to have better outcomes, with less chances of diffuse RPE damage and other OCT features compared to males

Femtosecond laser cataract surgery.

Femtosecond laser (FSL) cataract surgery is in its infancy but is rapidly gaining popularity due to the improved consistency and predictability for corneal incisions and anterior capsulorhexis. It enables subsequently less phacoemulsification energy and time to be employed, which has gains in terms of reduced corneal oedema. In addition, the FSL allows better circularity of the anterior capsulotomy, capsule overlap, intraocular lens (IOL) placement and centration of the IOL. These advantages have resulted in improved visual and refractive outcomes in the short term. Complication rates are low which reduce with surgeon experience. This review article focuses on the Alcon LenSx system