Transcorneal Intraocular Ultrasonographic Evaluation of Eye in Goats

Knowledge of the normal appearance and ocular dimensions of goat eyes facilitates the use of ultrasonography in the evaluation of ocular diseases. B-mode ultrasonography was performed in 20 nondescript goats of different age groups and sexes. Ocular sonography and echobiometry were performed after instillation of 0.5% proparacaine topical anaesthetic solution. A linear probe (4-15MHz) was placed in a transverse position for optimal B-scan images. Ocular measurements between right and left eyes, and male and female goats were not significant (P>0.05). Mean ocular structures for male and female goats were 2.46±0.07 and 2.33±0.06 mm for anterior chamber depth, 6.60±0.12 and 7.65±0.08 mm for lens thickness, 11.34±0.11 and 11.39±0.11 mm for vitreous chamber depth and 21.43±0.18 and 21.39±0.17 mm for axial globe length respectively. The normal value of echobiometry of inner ocular structure of healthy eyes can be useful for ultrasonographic evaluation of different ocular affections in goats.