• Standardized A-scan echography (ultrasonography) is rapidly assuming its appropriate role as a primary diagnostic tool in ophthalmology. Its ability to display "tissue texture" can be used by the experienced examiner to establish a reliable tissue diagnosis in a high percentage of lesions. The most important intraocular neoplasm is the choroidal malignant melanoma, and a diagnostic accuracy in excess of 95% has been reported by Ossoinig et al. This smaller series of proven choroidal malignant melanomas diagnosed preoperatively by standardized A-scan confirms the reliability of this noninvasive technique.
(Arch Ophthalmol 95:593-597, 1977)
Barton L. Hodes, Earl Choromokos. Standardized A-Scan Echographic Diagnosis of Choroidal Malignant Melanomas. Arch Ophthalmol. 1977;95(4):593–597. doi:10.1001/archopht.1977.04450040059006