The two-dimensional real-time ultrasonography was used to evaluate 20 normal eyes of 10 dogs and 55 eyes o f 30 dogs with ocular opacity. A 7.5MHz mechanical sector fluid offset transducer was utilized, and the corneal contact method was performed. The exams were carried out with the animal awake, the córnea received a topical ophtalmic anesthetic, and the eyelids were held open manually. The eyes were examined with the transducer in vertical and horizontal positions. The ultraso- nographic characteristics found in the normal eye structures were compatible with the experiences related by several dijferent authors. Several changes were found in the structures and chambers of the eye which presented opacities of the media, such as cataracts, lens luxation and sub-luxation, vitreous degeneration, hemorrhage and inflammation in the vitreal chamber, besides retinal detachments. On the basis of the studies carried out and the obtained results, it was possible to conclude that the two-dimensional real-time ultrasonography, with the use of a 7.5MHz mechanical sector fluid offset transducer shows a satisfactory adaptability to the evaluation of the intra-ocular structures. It is indicated specially in Veterinary Medicine in which resources are scanty to sophisticated procedures or specific eye ultrasound equipment.
ultrasonography; eyes; dogs
