Eye disorders: Using ultrasound in ophthalmologiç diagnosis.

Ultrasonography (echography) is a valuable diagnostic modality in ophthalmology. Its use in the detection and differentiation of intraocular and orbital diseases is expanding. B-scan provides cross-sectional display of diseased tissues and is valuable in detecting unsuspected disease. Quantitative A-scan is capable of demonstrating the internal texture of lesions, and this capacity coupled with the physician's familiarity with the histologic appearance of certain intraocular lesions often can lead to an accurate tissue diagnosis or can identify a group of possible diagnoses.