Reflective Road Line Car Park Marking Paint (2.5 Litre, White)

Product Information

If you're looking for a resource to help you teach about lines of symmetry, then why not try this Investigating Lines of Symmetry Worksheet KS2? When do children begin to learn symmetry? Govetto A, Su D, Farajzadeh M, Megerdichian A, Platner E, Ducournau Y, et al. Microcystoid macular changes in association with idiopathic epiretinal membranes in eyes with and without glaucoma: clinical insights. Am J Ophthalmol. 2017;181:156–65. Shapes and patterns can have many different lines of symmetry. This all depends on how many times the shape can be folded in half, yet still remain the same on both sides. A circle, for example, has an infinite number of lines of symmetry because there are more ways of folding it in half than there are of counting. Other shapes, like a love heart, can only be folded in half one way. Continuous EIFL was defined on OCT as the presence of a continuous hypo- or hyper-reflective band, extending from the inner nuclear layer and inner plexiform layer across the foveal region, as described before by Govetto et al. [ 22]. Disruption of the inner segment ellipsoid zone was defined as a discontinuous ellipsoid band in the foveal region, and the presence of the cotton ball sign was defined as a round or diffuse hyper-reflective area between the ellipsoid zone and the cone outer segment tip line at the central fovea, as described by Tsunoda et al. [ 23]. The microcystoid retinal changes were described as the presence of multiple, small hypo-reflective roundish-elliptical cystoid spaces in retinal layers. Okamoto F, Sugiura Y, Okamoto Y, Hiraoka T, Oshika T. Time course of changes in aniseikonia and foveal microstructure after vitrectomy for epiretinal membrane. Ophthalmology. 2014;121:2255–60.

Govetto A, Lalane RA 3rd, Sarraf D, Figueroa MS, Hubschman JP. Insights into epiretinal membranes: presence of ectopic inner foveal layers and a new optical coherence tomography staging scheme. Am J Ophthalmol. 2017;175:99–113.When children enter Year 4 and Year 5, they will begin to identify multiple lines of symmetry in 2D shapes. Pupils will understand that some shapes have more than one line of symmetry. Pupils in Year 4 will also be asked to draw these patterns.

Cho KH, Park SJ, Cho JH, Woo SJ, Park KH. Inner-retinal irregularity index predicts postoperative visual prognosis in idiopathic epiretinal membrane. Am J Ophthalmol. 2016;168:139–49.

What is a reflective essay?

Ng CH, Cheung N, Wang JJ, Islam AF, Kawasaki R, Meuer SM, et al. Prevalence and risk factors for epiretinal membranes in a multi - ethnic United States population. Ophthalmology. 2011;118:694–9. Yoon YH, Joe SG, Hwang JU, Yang HS. Insights into epiretinal membranes: presence of ectopic inner foveal layers and a new optical coherence tomography staging scheme. Am J Ophthalmol. 2017;177:226–7. Reflective studs are a common sight on motorways and are designed to help drivers stay in the correct lane and improve visibility in poor weather or darkness. Understanding the line of symmetry can leave children needing a little extra support. Using things like this Line of Symmetry PowerPoint alongside sheets like this Investigating Lines of Symmetry are great examples of ways you can support your children's learning.

In summary, by the end of key stage two, it's expected that children are able to understand and do the following things, in line with the National Curriculum guidance: These are the most common reflective studs you will see on UK motorways. These simply show where each of the three lanes are in challenging driving conditions. A total of 242 eyes of 121 patients with unilateral idiopathic ERM were prospectively evaluated. ERM stages were defined based on the SD-OCT staging system as stage 1: negligible morphological or anatomical disruption, retinal layers, and foveal pit are identified; stage 2: characteristic stretching of the outer nuclear layer, absence of foveal depression, retinal layers are identified; stage 3: continuous EIFL crossing the central foveal area, absence of foveal depression, retinal layers are identified; and stage 4: anatomical disruption of the fovea, continuous EIFL crossing the entire foveal area, retinal layers are distorted. Results Both preparing for and writing job applications contain elements of reflective writing. You need to think about the experiencethat makes you suitable for a role and this means reflection on the skills you have developed and how they might relate to the specification. When writing your application you need to expand on what you have done and explain what you have learnt and why this matters - key elements of reflective writing. 2. Appraisals Kauffmann Y, Ramel JC, Lefebvre A, Isaico R, De Lazzer A, Bonnabel A, et al. Preoperative prognostic factors and predictive score in patients operated on for combined cataract and idiopathic epiretinal membrane. Am J Ophthalmol. 2015;160:185–92.

Get to know us

Engineers use reflection lines to judge a surface's quality. Reflection lines reveal surface flaws, particularly discontinuities in normals indicating that the surface is not C 2 {\displaystyle C Hwang JU, Sohn J, Moon BG, Joe SG, Lee JY, Kim JG, et al. Assessment of macular function for idiopathic epiretinal membranes classified by spectral-domain optical coherence tomography. Invest Ophthalmol Vis Sci. 2012;53:3562–9. Uji A, Murakami T, Unoki N, Ogino K, Nishijima K, Yoshitake S, et al. Parallelism as a novel marker for structural integrity of retinal layers in optical coherence tomographic images in eyes with epiretinal membrane. Am J Ophthalmol. 2014;157:227–36. These show that there have been changes to the road ahead, or that roadworks are currently taking place. You will also see these across many other types of roads to show the boundaries of driving lanes. Fluorescent Green and Yellow Studs

Miguel AI, Legris A. Prognostic factors of epiretinal membranes: a systematic review. J Fr Ophtalmol. 2017;40:61–79. This is especially important in areas with a high speed limit, as drivers may not have time to react to sudden changes in the road if they don’t spot them in time. The reflective studs help drivers to spot these changes in the road ahead and adjust their speed accordingly. In addition to EIFL, frequency of cystoid macular changes, ellipsoid disruption, and the cotton ball sign significantly increased from stage 1 through stage 4 in the study by Govetto et al. [ 22]. Similarly, in our study, the rate of cystoid changes, cotton ball sign, and disruption of the ellipsoid zone increased with increasing stage of ERM. However, whereas neither the presence of cystoid changes nor the cotton ball sign had a significant effect on BCVA, disruption of the ellipsoid zone was associated with significantly higher BCVA values in logMAR. On the other hand, none of these SD-OCT findings were found to be an independent predictor of visual acuity in a multivariate linear regression model. In eyes with ERM, disruption of the ellipsoid zone has been reported to be negatively correlated with visual outcomes in multiple studies [ 14, 31]. However, in our study, we did not find a correlation between disruption of the ellipsoid zone and visual acuity, probably due to the small number of patients with ellipsoid zone disruption.

Looking for something different

Fraser-Bell S, Guzowski M, Rochtchina E, Wang JJ, Mitchell P. Five-year cumulative incidence and progression of epiretinal membranes: the Blue Mountains Eye Study. Ophthalmology. 2003;110:34–40. Mori K, Gehlbach PL, Sano A, Deguchi T, Yoneya S. Comparison of epiretinal membranes of differing pathogenesis using optical coherence tomography. Retina. 2004;24:57–62. Use these differentiated worksheets to help your children develop their understanding of how to draw a shape reflected in a horizontal or vertical mirror line. Fraser-Bell S, Ying-Lai M, Klein R, Varma R. The Los Angeles Latino Eye Study Group. Prevalence and associations of epiretinal membranes in Latinos: the Los Angeles Latino Eye Study. Invest Ophthalmol Vis Sci. 2004;45:1732–6. Watanabe K, Tsunoda K, Mizuno Y, Akiyama K, Noda T. Outer retinal morphology and visual function in patients with idiopathic epiretinal membrane. JAMA Ophthalmol. 2013;131:172–7.