Biomedical subjects
Publications and source records attributed to J A Katowitz.
A case of dacryocystitis due to Mycobacterium fortuitum is reported with secondary chronic granulomatous abscess of the eyelid. Mycobacterium fortuitum is an atypical Mycobacterium rarely encountered in ophthalmic practice. The clinical course of the abscess caused by Mycobacterium is reviewed and the successful management of this problem by cryotherapy discussed.
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Interdisciplinary management of cranio-orbital problems has allowed improved surgical results in the diagnosis and management of motility and adnexal deformities. Careful evaluation of visual function preoperatively, combined with proper timing of repair, can greatly assist the development and maintenance of optimum visual function.
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Dacryoscintigraphy was performed in 34 pediatric patients aged between 13 months and 20 years. Twenty-six were 12 years of age or younger. The study is easy to perform and provides useful information regarding the function of the nasolacrimal system. The radiation dose to the lens of the eye, estimated to be 4-14m rads/100 uCi of technetium pertechnetate, is considerably less than that of a skull x-ray or dacryocystography. Of the 74 nasolacrimal systems studied, the findings were in agreement with the clinical observations and other methods of testing in 63. In nine instances, the findings altered the clinical management while the results were inconclusive or misleading in the remaining two. Dacryoscintigraphy was found to be a useful physiological test in the evaluation of children with epiphora.
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We undertook a retrospective study of 160 patients to ascertain if craniofacial reconstruction affected ocular alignment. In most patientspre-existing alignment and binocularity were unaffected by craniofacial surgery; thus, correction of any strabismus can be performed on a child without concern for disruption of muscle tissue by later craniofacial surgery.
Five of 12 patients with craniofacial dysostosis who needed strabismus surgery had anomalies of extraocular muscle structure and number. Two cul-de-sac incisions per eye are sufficient to investigate all muscles for anomalies and add little time or risk to the planned strabismus procedure. The origin of these anomalies and their frequency in craniofacial stenosis are unknown.
Fifty-five frontalis sling procedures were performed with use of 4--0 polyfilament, cable-type ophthalmic suture (Supramid Extra) as the material for suspension. Recurrences numbered 16, recorded through a follow-up period of one to ten years. Trauma accounted for five recurrences. A pattern of gradual droop of the lid operated on became most obvious between six and ten years postoperatively and accounted for six of seven recurrences during this period. These findings suggest that this suture material is a poor alternative to fascia lata for permanent frontalis suspension in patients with congenital ptosis and should be used only in unusual circumstances, or when a temporary procedure is indicated.
A case of fibrous histiocytoma required 4 surgical excisions over an 11-year period. The technique of frequent observation and early excision of recurrences is probably the best approach to established histiocytomas. Complete primary excision seems to offer the best chance of definitive cure.
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The clinical, histochemical, light and electron microscopic evaluation of a case of lattice corneal dystrophy, appears clinically as an atypical granular dystrophy. There is structural and histochemical differentiation of the two dystrophies. Electron microscopy is often an invaluable aid in establishing a definitive diagnosis. The possible sources of the filamentous material found in lattice corneal dystrophy are discussed. It seems that not only keratocytes, but also corneal epithelial cells, occasionally may have the ability to elaborate the abnormal material that is considered to be amyloid in nature.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.