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OP-1 Tallinn Healthcare College HARMFUL EFFECTS ON THE EYE CAUSED BY SMART DEVICES 2016 Eye Eye is an organ in both humans and other animals which allows to see. Blue light causes damage Smart devices radiate blue light Blue light has damaging effect on the eye because it refracts in front of the retina This forces the eye to focus constantly so the eye gets tired quickly. „Dry eye syndrome“ Dry eye syndrome is a collection of symptoms which are caused by a lack of or low quality of the tear fluid Lack of eye blinking Macular Degeneration Disease Macula can not be damaged at all to have a correct visual acuity Blue light damages the light-sensitive cells in retina Macular degeneration disease can lead to permanent loss of eyesight. Protecting your eyes
Tallinna Tervishoiu Kõrgkool optomeetria õppetool OP1 NUTISEADMETE KAHJULIK MÕJU SILMADELE Referaat eesti keeles Juhendaja: Siret Piirsalu Tallinn 2016 SISUKORD SISUKORD........................................................................................................ 2 SISSEJUHATUS................................................................................................. 3 1.SILM JA NÄGEMINE........................................................................................ 4 1.1.Silma ehitus........................................................................................... 4 1.2.Nägemine............................................................................................... 5 2.NUTISEADMETE MÕJU SILMADELE................................................................6 3.VÕIMALIKUD KAHJUSTUSED SILMALE SINISE VAL
NUTISEADMETE KAHJULIK MÕJU SILMADELE OP-1 Tallinna Tervishoiu Kõrgkool 2016 Sisukord 1. Silm 2. Nägemine 3. Sinine valgus 4. Kuiva silma sündroom 5. Maakula ealine degeneratsioon 6. Silmade kaitsmine Silm Paariline meeleelund, mis võimaldab nägemist Nägemine Võime tajuda valgust, värvust, esemete kuju, mõõtmeid ja asukohta ruumis Valguskiired langevad läbi pupilli võrkkestale Võrkkestale tekib kujutis Sinine valgus Lühike lainepikkus Kõrge energia Kiirgub ekraanidest Kahjustab võrkkesta Kuiva silma sündroom “Sümptomite kogum, mis on tingitud vähesest pisaravedelikust või selle madalast kvaliteedist” Vähene pilgutamine Maakula degeneratsioon Võrkkestas asub kollatähn ehk maakula Maakula degeneratsioon ehk kollatähni kärbumine Sinine valgus kahjustab võrkkestas valgustundlikke ra
http://www.nytimes.com/2009/09/27/health/re search/27eye.html? pagewanted=1&_r=1&ref=technology A Burst of Technology, Helping the Blind to See Blindness first began creeping up on Barbara Campbell when she was a teenager, and by her late 30s, her eye disease had stolen what was left of her sight. Reliant on a talking computer for reading and a cane for navigating New York City, where she lives and works, Ms. Campbell, now 56, would have been thrilled to see something. Anything. Now, as part of a striking experiment, she can. So far, she can detect burners on her stove when making a grilled cheese, her mirror frame, and whether her computer monitor is on.
DENOTATIVE AND CONNOTATIVE MEANINGS IN MOTION GRAPHICS TEXT For Multimedia Semiotics To begin with, what is motion graphics? Motion Graphics is a piece of video which is created digitally in a computer and as the name refers bases on moving graphical elements. These elements can be images, text, graphical designs or a multidimensional imagery. But this term should not be confused with another term ,,animation". Line between these two is a bit blurred. Animation often is only giving life to the characters and scenery. Also, it can be done in real world with physically created sets. Motion graphics on the other hand can be only created in digital world and could include animation
AMBER AND RUSSET - LATE COLOUR CHANGE GENES Copyright 2014, Sarah Hartwell The ancestors of the domestic cat were nondescript black/brown striped tabbies. Over the centuries, mutation produced a wide array of colours based on 2 different pigments. Eumelanin gives the blacks, browns and blues while phaeomelanin gives the reds, fawns and creams. A few other genes give further variations on those colours such silvers, colourpoints and solids/selfs. Mutations continue to occur and unexpected colours also turn up due to inbreeding where recessive genes, hidden for generations, start showing up. AMBER AND LIGHT AMBER During the 1990s, some purebred Norwegian Forest Cats in Sweden produced chocolate/lilac and cinnamon/fawn offspring. However, those colours are not found in the purebred Norwegian Forest Cat gene pool
radiation lighting (magnetic fields) PHYSICAL HAZARDS Risk of fire and Noise in the working environment: electrical shock Physical Part I – Inconvenient indoor hazards Risk from climate sharp objects Vibration
Infectious bovine keratoconjunctivitis Kristjan Rannaäär Veterinary medicine, 2. year, 2. group Abstract Infectious bovine keratoconjunctivitis (IBK) is a highly contagious ocular disease and big problem in cattle farms worldwide. It is the most common ocular disease of cattle caused by bacteria Moraxella bovis. This study focuses on IBK despite having low mortality rate and complete recovery, it causes significant loss of productivity in the herds affected due to the costs of treatment and considerable impact on afflicted animals, including blindness. This research is focused on the details, such as risk factors, pathogenesis, etiology, clinical signs prevention, transmission, and treatment, which animal handlers should be aware of to minimize the harm caused by IBK. Vaccination does not ensure lifelong immunity and not prevent a primary and reinfection of the cattle. Therefore, it is necessary to keep the cattle in a
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