"Item Id","Item URI","Dublin Core:Alternative Title","Dublin Core:Abstract","Dublin Core:Table Of Contents","Dublin Core:Date Available","Dublin Core:Date Created","Dublin Core:Date Accepted","Dublin Core:Date Copyrighted","Dublin Core:Date Submitted","Dublin Core:Date Issued","Dublin Core:Date Modified","Dublin Core:Date Valid","Dublin Core:Access Rights","Dublin Core:License","Dublin Core:Conforms To","Dublin Core:Has Format","Dublin Core:Has Part","Dublin Core:Has Version","Dublin Core:Is Format Of","Dublin Core:Is Part Of","Dublin Core:Is Referenced By","Dublin Core:Is Replaced By","Dublin Core:Is Required By","Dublin Core:Is Version Of","Dublin Core:References","Dublin Core:Replaces","Dublin Core:Requires","Dublin Core:Extent","Dublin Core:Medium","Dublin Core:Bibliographic Citation","Dublin Core:Spatial Coverage","Dublin Core:Temporal Coverage","Dublin Core:Accrual Method","Dublin Core:Accrual Periodicity","Dublin Core:Accrual Policy","Dublin Core:Audience","Dublin Core:Audience Education Level","Dublin Core:Mediator","Dublin Core:Instructional Method","Dublin Core:Provenance","Dublin Core:Rights Holder","Dublin Core:Title","Dublin Core:Description","Dublin Core:Creator","Dublin Core:Date","Dublin Core:Identifier","Dublin Core:Publisher","Dublin Core:Coverage","Dublin Core:Contributor","Dublin Core:Rights","Dublin Core:Relation","Dublin Core:Language","Dublin Core:Source","Dublin Core:Format","Dublin Core:Type","Dublin Core:Subject","Item Type Metadata:Text","Item Type Metadata:Interviewer","Item Type Metadata:Interviewee","Item Type Metadata:Location","Item Type Metadata:Transcription","Item Type Metadata:Local URL","Item Type Metadata:Original Format","Item Type Metadata:Physical Dimensions","Item Type Metadata:Duration","Item Type Metadata:Compression","Item Type Metadata:Producer","Item Type Metadata:Director","Item Type Metadata:Bit Rate/Frequency","Item Type Metadata:Time Summary","Item Type Metadata:Email Body","Item Type Metadata:Subject Line","Item Type Metadata:From","Item Type Metadata:To","Item Type Metadata:CC","Item Type Metadata:BCC","Item Type Metadata:Number of Attachments","Item Type Metadata:Standards","Item Type Metadata:Objectives","Item Type Metadata:Materials","Item Type Metadata:Lesson Plan Text","Item Type Metadata:URL","Item Type Metadata:Event Type","Item Type Metadata:Participants","Item Type Metadata:Birth Date","Item Type Metadata:Birthplace","Item Type Metadata:Death Date","Item Type Metadata:Occupation","Item Type Metadata:Biographical Text","Item Type Metadata:Bibliography","Item Type Metadata:Image","Item Type Metadata:Dates active","Item Type Metadata:VIAF ID","Item Type Metadata:CERL Thesaurus ID","Item Type Metadata:Related place","Item Type Metadata:Name prefix/title","Item Type Metadata:Surname","Item Type Metadata:Forename(s)","Item Type Metadata:Other sources","Item Type Metadata:Corporate Name",tags,file,itemType,collection,public,featured 60,https://heritage.rcpsg.ac.uk/items/show/60,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Skiascope,"This skiascope was manufactured by John Trotter of Glasgow. John Trotter set up business in Gordon Street in the 1880s with a branch opening in Edinburgh in the 1920s. Trotter was a pioneer in many branches of optical science and he also advised hospitals on the instillation of X-ray apparatus. Ophthalmic surgeon Hugh Wright Thomson worked with Trotter to develop the skiascope which he used initially for eye examinations in school children although he subsequently also found it helpful for adults in hospital refraction work. A long stem was attached to its centre and the circular frame was fitted with twenty of the lenses most commonly used in retinoscopy (technique to objectively determine the refractive error of the eye – farsighted, nearsighted, astigmatism – and the need for glasses).","John Trotter Ltd.; 1867-2014; Optician and instrument maker","c. 1905",2003/77.56,,,,,,,,,,,,,,,,,"Medical Instrument","Diameter: 25.6 cm ",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Instrument,Ophthalmology","https://heritage.rcpsg.ac.uk/files/original/bfdac639e4a86af897e95ad45ebabc67.jpg,https://heritage.rcpsg.ac.uk/files/original/a9e3934065a25d996a934851b1d21ff5.jpg,https://heritage.rcpsg.ac.uk/files/original/1755377b44907daf8c7986b694f8cd3f.jpg,https://heritage.rcpsg.ac.uk/files/original/9b3f84d2de20727ed60398bcb5acf856.jpg,https://heritage.rcpsg.ac.uk/files/original/ce0326ec497ff50b8db18c23718a1ca9.jpg,https://heritage.rcpsg.ac.uk/files/original/7711a91eab6d53c58b5a749a41fe72df.jpg","Physical Object","Museum and Artwork",1,0