ABSTRACT
The paper provides a brief account and technical data of an AP-94-type device (a refractometer) for examination of ocular refraction, which operates in the infrared spectrum and allows a correct diagnosis to be promptly and qualitatively established and corrective means to be chosen for the patient. The results of clinical tests of the device are given.
Subject(s)
Ophthalmology/instrumentation , Optometry/instrumentation , Refraction, Ocular , Refractive Errors/diagnosis , Humans , Visual AcuitySubject(s)
Ileal Diseases/surgery , Intestinal Obstruction/surgery , Intestine, Small/surgery , Adult , Aged , Female , Gastrostomy , Humans , Ileal Diseases/prevention & control , Intestinal Obstruction/prevention & control , Intubation, Gastrointestinal , Male , Recurrence , Tissue Adhesions/prevention & control , Tissue Adhesions/surgerySubject(s)
Duodenal Ulcer/diagnosis , Duodenitis/diagnosis , Duodenoscopy/methods , Methylene Blue , Adolescent , Adult , Aged , Female , Fiber Optic Technology , Humans , Male , Middle AgedSubject(s)
Endoscopy/methods , Esophageal Diseases/diagnosis , Gastrointestinal Diseases/diagnosis , Adult , Aged , Congo Red , Humans , Methylene Blue , Middle Aged , Neutral RedABSTRACT
The selective character of staining the intact mucosa with Lugol's solution is dependent on the glycogen content in the superficial epithelial layer of the oesophagus. The inflammatory or carcinomatous epithelium being not stained is accounted for by changes in the glycogen content in the oesophageal epithelium which makes the staining method useful for diagnozing carcinomatous and inflammatory diseases of the oesophagus.