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Diagnostic ultrasonography of equine lens and posterior segment abnormalities
Author(s) -
Scotty N. C.,
Cutler T. J.,
Brooks D. E.,
Ferrell E.
Publication year - 2004
Publication title -
veterinary ophthalmology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.594
H-Index - 50
eISSN - 1463-5224
pISSN - 1463-5216
DOI - 10.1111/j.1463-5224.2004.04009.x
Subject(s) - medicine , cataracts , posterior segment of eyeball , ultrasonography , ophthalmology , lens (geology) , abnormality , retinal detachment , phthisis bulbi , microphthalmos , surgery , visual acuity , retinal , psychiatry , petroleum engineering , engineering
Purpose To define the indications for equine ocular ultrasonography and to provide representative ultrasonographic images of lens and posterior segment diseases. Methods Retrospective study. Equine medical records dating from January 1983 to March 2001 were reviewed. All cases that: (1) had a lens and/or posterior segment abnormality; and (2) received a complete ophthalmic examination and ocular ultrasonography were included. Results Forty‐three cases ( n = 64 eyes) out of 112 total cases of equine lens and/or posterior segment abnormalities qualified. The following conditions were identified ultrasonographically in order of decreasing frequency: cataracts, vitreal opacities, retinal detachment, lens luxation, endophthalmitis, microphthalmos, choroiditis, lens rupture, lenticonus, buphthalmos and phthisis bulbi . Ultrasonography often enabled diagnoses to be made in the presence of anterior opacities in both surgical (pre and/or postoperatively) and nonsurgical cases. Additional ocular conditions were identified in adults with cataracts more frequently than in foals with cataracts. Conclusions Cataracts were the most common lens abnormality identified in horses that received ocular ultrasound examination. Cataracts were commonly found in association with other ocular abnormalities. Ultrasonography was a practical and effective method of evaluating the lens and posterior segment, particularly in cases with anterior opacities. Ultrasonography also provided critical information with regard to the potential for surgical removal of cataracts and was a valuable component of postsurgical follow‐up.