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EXPERIMENTAL ULTRASONIC EXAMINATIONS OF INTRAOCULAR, INTRASCLERAL AND RETROBULBAR FOREIGN BODIES
Author(s) -
LARSEN JON S.,
GJERULDSEN SVEN T.
Publication year - 1973
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1973.tb06029.x
Subject(s) - foreign bodies , foreign body , ultrasonography , brass , medicine , eye foreign body , ophthalmology , ultrasonic sensor , materials science , surgery , radiology , copper , metallurgy
Normal human eyes removed at autopsy with the total orbital contents were used for ultrasonographic examinations of intravitreal, intrascleral, retroscleral and intraorbital foreign bodies. These were of various sizes and materials: iron, brass, aluminium, copper, glass, plastic (polystyrene), stone (slate), cement and wood (oak), and all could be demonstrated by ultrasonography. The smallest intravitreal foreign body (of iron) measured approximately 0.2 times 0.15 times 0.1 mm, the smallest intrascleral (of iron) 0.5 times 0.4 times 0.2 mm and the smallest retroscleral (of iron) 0.7 times 0.5 times 0.25 mm. Foreign bodies in the orbit were much more difficult to detect, and had to be larger to allow proper demonstration by ultrasonography.