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BMC Ophthalmol 2022 Aug 13;22(1):343. Epub 2022 Aug 13.

Ophthalmology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt.

Background: We aimed to assess the efficacy of the injections of platelet rich plasma (PRP) for the treatment of severe dry eye disease (DED).

Results: In this retrospecitve interventional clinincal study, we included 28 eyes of 14 patients with severe DED who were diagnosed with Sjogren syndrome. Each patient received unilateral lacrimal gland injection of PRP at days 0, 30, 60 and 90 days while the other eye served as control group who received preservative free eye drops. Read More

Cont Lens Anterior Eye 2022 Aug 10:101744. Epub 2022 Aug 10.

Optometry and Vision Sciences, Aston University, Birmingham, UK.

Purpose: To evaluate the benefits on the eyes of taking breaks based on the 20-20-20 rule.

Methods: Bespoke computer software using the laptop webcam to assess user breaks, eye gaze and blinking, and emitting personalized reminders of breaks based on the 20-20-20 rule, was downloaded onto the laptops of 29 symptomatic computer users. Digital eye strain (DES), binocular vision and dry eye were assessed before and after two weeks of using the reminders and one week after the discontinuation of the strategy. Read More

Osteoarthritis Cartilage 2022 Aug 10. Epub 2022 Aug 10.

Leeds Institute of Rheumatic and Musculoskeletal Medicine,University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK. Electronic address:

Objective: We conducted a systematic review in order to understand the relationship between imaging-visualised meniscus pathologies, hyaline cartilage, joint replacement and pain in knee osteoarthritis (OA).

Design: A search of the Medline, EMBASE and Cochrane library databases was performed for original articles reporting association between imaging-detected meniscal pathology (extrusion or tear/damage) and longitudinal and cross-sectional assessments of hyaline articular cartilage loss (assessed on MRI), incident joint replacement and pain (longitudinal and cross-sectional) in knee OA. Each association was qualitatively characterised by a synthesis of data from each analysis, based upon study design and quality scoring (including risk of bias assessment and adequacy of covariate adjustment using Cochrane recommended methodology). Read More

Langmuir 2022 Aug 12. Epub 2022 Aug 12.

School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.

So far, the presence of nanobubbles on lubricant-infused surfaces (LIS) has been overlooked, because of the difficulty in detecting them in such a complex system. We recently showed that anomalously large interfacial slip measured on LIS is explained by the presence of nanobubbles [Vega-Sánchez, Peppou-Chapman, Zhu and Neto, , , 351]. Crucial to drawing this conclusion was the use of atomic force microscopy (AFM) force-distance spectroscopy (meniscus force measurements) to directly image nanobubbles on LIS. Read More

Sensors (Basel) 2022 Jul 28;22(15). Epub 2022 Jul 28.

Changzhou Vocationnal Institute of Industry Technology, Changzhou 213018, China.

Since climbing robots mainly rely on adhesion actuators to achieve adhesion, robust adhesion actuators have always been the challenge of climbing robot design. A novel under-actuated soft adhesion actuator (USAA) proposed in this paper for climbing robots can generate adhesion through robot's load applied to the actuator. The actuator is composed of a soft film/substrate structure with an annular groove on the substrate and a cavity on the soft film. Read More