Ophthalmic Surgeries in Production Animals

Ultrasound biomicroscopic imaging parameters associated with outcome in equine infectious ulcerative keratitis and stromal abscesses

“…1,4 However, because of disease-related corneal opacity, it may be difficult to accurately determine the depth of the lesion and the severity of inflammation in the cornea and inside of the eye, both of which may be important parameters to determine the extent and progression of the disease and if surgical intervention is indicated. 6,7 Advanced imaging of the cornea and anterior segment of the eye in horses may provide additional information to assist in treatment decisions, beyond what is provided by ocular examination alone. [6][7][8][9] Anterior segment optical coherence tomography (OCT) imaging was recently described in horses with corneal disease.…”

“…6,7 Advanced imaging of the cornea and anterior segment of the eye in horses may provide additional information to assist in treatment decisions, beyond what is provided by ocular examination alone. [6][7][8][9] Anterior segment optical coherence tomography (OCT) imaging was recently described in horses with corneal disease. 9 In this study, light penetration was OBJECTIVE To determine the predictive value of corneal ultrasound biomicroscopy (UBM) findings for the outcome of equine corneal disease.…”

“…High-frequency ultrasound is a practical advanced imaging technique that can be used to evaluate the cornea as well as the presence of cells, hyphema, fibrin, or exudate in the anterior segment of the eye. 7 High-frequency ultrasound tissue penetration is 5 to 10 mm making this tool ideal for anterior segment examination of the eye. 7,[10][11][12][13] Specifically, high-frequency ultrasound biomicroscopy (UBM) allows for noninvasive visualization of tissue at resolutions of 20 to 80 μm, similar to a low-power histologic view.…”

“…7 High-frequency ultrasound tissue penetration is 5 to 10 mm making this tool ideal for anterior segment examination of the eye. 7,[10][11][12][13] Specifically, high-frequency ultrasound biomicroscopy (UBM) allows for noninvasive visualization of tissue at resolutions of 20 to 80 μm, similar to a low-power histologic view. [6][7][8]10,14 Unlike slit lamp biomicroscopy and OCT, UBM can be useful when ocular structures are obscured by opacities in the cornea or anterior segment of the eye.…”

“…7,[10][11][12][13] Specifically, high-frequency ultrasound biomicroscopy (UBM) allows for noninvasive visualization of tissue at resolutions of 20 to 80 μm, similar to a low-power histologic view. [6][7][8]10,14 Unlike slit lamp biomicroscopy and OCT, UBM can be useful when ocular structures are obscured by opacities in the cornea or anterior segment of the eye. 6,10 Ultrasound biomicroscopy of corneal disease may be important for determining treatment options, surgical planning, and prognosis.…”