Phacofragmentation for morgagnian cataract in a horse.
Abstract: A 3-year-old Paint gelding was presented for sudden onset of cataract affecting the right eye. Ophthalmic examination revealed subtle to mild microphthalmia and a mature cataract affecting the right globe. The right eye was treated with an antibiotic-corticosteroid ophthalmic ointment and phacofragmentation was recommended. On re-examination 5 months later, resorption of the cortex of the right lens and a morgagnian cataract were evident. The nucleus was positioned ventronasally in the lens capsule. The right eye had light perception, and a menace response was present. Examination of the right fundus via binocular indirect ophthalmoscopy was not possible. Ophthalmic ultrasonography revealed that the right globe was 4 mm shorter in axial length when compared with the left globe. There was a marked reduction in the size of the right lens vs. the left lens, and the presence of a moderate amount of hyperechoic debris was identified within the vitreal compartment of the right globe. Phacofragmentation, irrigation and aspiration of the morgagnian cataract and an anterior vitrectomy were performed. On postoperative examination, the eye was comfortable and a menace response was present. The horse regained useful vision and continues to have a comfortable, visual eye 7 months postoperatively.
Publication Date: 2001-11-28 PubMed ID: 11722788DOI: 10.1046/j.1463-5216.2001.00149.xGoogle Scholar: Lookup
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Summary
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This study details a case of a 3-year-old horse suffering from a sudden Morgagnian cataract in its right eye. The equine was treated using phacofragmentation, irrigation, and aspiration methods resulting in the recovery of useful vision for the horse.
Introduction to the Case
- The research presents a clinical case of a 3-year-old Paint gelding. The horse had a sudden onset of cataract in its right eye.
- During the ophthalmic examination, indications of mild microphthalmia (underdeveloped or smaller eyes) were found coupled with a mature cataract in the right eye.
- An antibiotic-corticosteroid ophthalmic ointment was administered to the right eye, and phacofragmentation was recommended as a treatment approach.
Follow-up and Re-examination Observations
- Five months after the initial examination, the horse was re-examined. It was observed that resorption of the cortex of the right lens had occurred, and a Morgagnian cataract had developed.
- For its right eye, light perception and autonomous defensive reflexes were observed to be intact.
- However, due to the condition, an examination of the right fundus (the interior surface of the eye, opposite the lens) using binocular indirect ophthalmoscopy was unachievable.
Clinical Examination
- Ultrasonographic examination of the eye indicated that the right eye globe was 4mm shorter in axial length compared to the healthy left one.
- Significant reduction in the size of the affected right lens versus the left one was noted, and a moderate amount of hypereflective debris was spotted within the vitreal compartment of the diseased right globe.
Treatment and Postoperative Outcome
- A surgical procedure involving phacofragmentation, irrigation, and aspiration was carried out to treat the Morgagnian cataract. Additionally, an anterior vitrectomy (surgical removal of the vitreous – gel-like substance that fills the eyeball) was performed.
- Postoperative examinations indicated successful treatment. The horse’s right eye was comfortable and continued to show a protective reflex. The horse was able to regain useful vision.
- Seven months post-surgery, the horse continues to have a comfortable, functional eye.
Cite This Article
APA
Hardman C, McIlnay TR, Dugan SJ.
(2001).
Phacofragmentation for morgagnian cataract in a horse.
Vet Ophthalmol, 4(3), 221-225.
https://doi.org/10.1046/j.1463-5216.2001.00149.x Publication
Researcher Affiliations
- Animal Eye Care, 181 Darling Road, East Malvern, 3145 Australia. chloeh@medeserv.com.au
MeSH Terms
- Animals
- Cataract / diagnostic imaging
- Cataract / therapy
- Cataract / veterinary
- Horse Diseases / diagnostic imaging
- Horse Diseases / surgery
- Horses
- Lens, Crystalline / pathology
- Male
- Phacoemulsification / methods
- Phacoemulsification / veterinary
- Treatment Outcome
- Ultrasonography
Citations
This article has been cited 2 times.- Kalinovskiy A, Leser S, Ehrle A, Reese S, Jones S, Gerhards H. Phacoemulsification Combined with Pars Plana Vitrectomy: Outcome in Horses with Acquired Cataracts Associated with Uveitis. Animals (Basel) 2024 Apr 16;14(8).
- Hua X, Dong Y, Wang L, Li Z, Du J, Chi W, Yuan X. Intraocular lens implantation performed first to protect the posterior capsule in Morgagnian cataracts during phacoemulsification. Int J Ophthalmol 2019;12(7):1215-1218.
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