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WEBMIDO launches 'Refocusing on Humans' Mido partners with renowned photography artist in a communication campaign, launching an eyewear-inspired photography series as exhibition registrations open for February 8-10, 2025
CPD - Optician Online
WEBInherited retinal diseases 1. Optometrist Sarah Arnold presents thought-provoking case studies on the topic of inherited retinal disease, taking into consideration both the clinical signs of significance and need to communicate in a sensitive and thoughtful manner. Closing date: 19 June Optometrists.
Optician Online - CPD Archive
WEBThe Frame PD. The box centre distance (BCD) is also commonly known as the frame PD and it can be seen from the diagram in figure 1 that: BCD, c = a/2 + d + a/2 = a + d. Alternatively: Frame PD = Eye Size + DBL. The frame PD is an important concept when advising patients on their frame selection.
News - Optician Online
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Optical properties of lens materials - Optician Online
WEBJun 9, 2005 · Crown glass provides poor protection against UVA as its cut-off is only 300nm. Higher-index glasses are better, with cut-off values of 330-350nm. Plastic materials have better UV protection than glass. For an uncoated CR39 lens, the cut off is 350nm, and for higher index lenses the cut off can be around 380nm.
Optician Online - CPD Archive
WEBThis might lead to the conclusion that the corridor length is 22mm, however corridor length is defined in BS EN ISO 13666:2012 as the distance between y10 and y90, the points on the lens where 10% and 90% of the reading addition are realised respectively. In this fictitious lens, the corridor length, L, shown in figure 5 is approximately 14mm.
Optician Online - CPD Archive
WEBMar 5, 2019 · It is worth mentioning at this stage that BVD calculations must also be considered in the presence of an astigmatic refraction result. Figure 1: Calculation of contact lens power from spectacle prescription. A prescription of -3.75DS/-1.50DC x 180 may not at first glance look like it necessitates a BVD adjustment, however, it …
Optician Online - CPD Archive
WEBFundamentals of ophthalmic dispensing – Part 3: Face, frame and centration measurements relating to custom eyewear. The tendency to take minimal measurements when dispensing is in many ways counterproductive if opticians are to differentiate themselves from their online competitors. It is common to …
Tried and tested: Specsavers hearing test - Optician Online
WEBFeb 24, 2017 · It fair to say less is known about a hearing consultation so Optician went along to Specsavers in Bromley to try it out. The first surprise is the ease with which a hearing test can be booked. A simple call where details are taken and then a slot, on the day or within hours is offered. Once in the consulting room my audiologist, Gina Rologan ...
Pavingstone degeneration - Optician Online
WEBJan 18, 2008 · Pavingstone degeneration is a common degeneration of the peripheral retina that does not predispose to retinal detachment. The choriocapillaris degenerates, with subsequent loss of retinal pigment epithelium. There is adherence between the remaining thinned retina and choroidal connective tissue.