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Biomedical subjects

H C Joondeph

Publications and source records attributed to H C Joondeph.

10 recordsLinked to original sources
PubMed1992

Comparison of three permanent intraocular magnets.

A comparison was performed of three small-gauge, permanent, rare-earth, intraocular magnets to assist the posterior segment surgeon with the decision as to which magnet to purchase or to use in different clinical situations. The magnetic force was measured at varying distances from the instrument tip using a 1/8-inch steel ball as the test object. There were small differences in magnetic strength between the three instruments that may have clinical significance in certain situations. Two of the instruments had a retractable magnet within an outer sleeve, allowing for controlled attraction and release of a magnetic foreign body by the surgeon.

Eye Foreign Bodies↗
PubMed1990

Macroaneurysm.

Explore the source record for details and available documents.

Aneurysm↗
PubMed1989

A new culture method for infectious endophthalmitis.

We studied the use of blood culture bottles for culturing vitreous specimens obtained during vitrectomy for infectious endophthalmitis. In a retrospective review of 83 cases, blood culture bottles yielded a 91% incidence of positive cultures. A laboratory comparison of direct media inoculation, a membrane filter system, and three blood culture systems was undertaken using inocula of nine organisms in three different concentrations. The blood culture bottle systems became positive at the same time as, or within 24 hours of, the membrane filter system for nearly every organism tested. A prospective clinical comparison was also performed in 14 cases of endophthalmitis, confirming our laboratory findings. The direct inoculation of blood culture bottles may be an acceptable adjunct or alternative to more sophisticated laboratory techniques for vitreous cultures in infectious endophthalmitis.

Adolescent↗
PubMed1989

Retinal macroaneurysms treated with the yellow dye laser.

Retinal macroaneurysms, and their sequelae of retinal hemorrhage, exudate, edema, and serous detachment of the macula, may lead to decreased central visual acuity. We studied twelve patients with retinal macroaneurysms and decreased or threatened central vision who underwent laser photocoagulation of the macroaneurysm using the yellow (577 nm) wavelength of an ophthalmic tunable dye laser. In all cases, the macroaneurysm was "obliterated", with resolution of hemorrhage, exudate, edema, or serous macular detachment; in eight of the twelve cases, the visual acuity improved following treatment. There were no complications due to the photocoagulation.

Aged↗
PubMed1988

Posterior tractional retinal breaks complicating branch retinal vein occlusion.

A total of 358 patients with branch retinal vein occlusion (BRVO) were reviewed to examine the relationship between branch retinal vein occlusion with neovascularization elsewhere (NVE), vitreous hemorrhage, and posterior tractional retinal breaks. Twenty-eight of 358 (7.8%) BRVO patients had vitreous hemorrhage. In this group of 28 patients, 24 of the 28 (85.7%) had NVE. Of the 24 BRVO patients with vitreous hemorrhage and NVE, six (21.4%) were found to have posterior tractional retinal breaks adjacent to avulsed neovascular tissue. These data indicate a strong association between BRVO patients with vitreous hemorrhage and posterior tractional retinal breaks due to avulsion of neovascular tissue.

Aged↗
PubMed1987

Foveal neovascularization in diabetic retinopathy.

Retinal neovascularization in diabetes mellitus almost always occurs at the optic disc and/or near the major nasal and temporal vascular arcades, sparing the foveal area. We examined seven eyes of seven patients with long-standing insulin-dependent diabetes mellitus who had unilateral foveal retinal neovascularization. The neovascularization originated from the perifoveal capillaries and demonstrated typical leakage on fluorescein angiography.

Adult↗
PubMed1986

Purulent anterior segment endophthalmitis following paracentesis.

A 67-year-old man developed a central retinal artery occlusion and was treated with an oral carbonic anhydrase inhibitor, oral glycerin, carbachol rebreathing, and anterior chamber paracentesis. He subsequently developed an anterior segment endophthalmitis. Vigorous medical and surgical management cured the endophthalmitis, but his visual acuity remained at light perception. To the best of our knowledge, this patient represents the first reported case of a culture-positive, anterior segment endophthalmitis following anterior chamber paracentesis.

Aged↗
PubMed1976

Mooren's ulcer: two cases occurring after cataract extraction and treated with hydrophilic lens.

Two patients developed Mooren's ulcer following cataract extraction. The first case was complicated by ocular trauma 8 years prior to surgery and by vitreous loss at the time of surgery. The second patient underwent cataract extraction without complication. Surgical trauma may have been the inciting factor in the development of these ulcers. Both patients experienced dramatic relief of ocular pain following the application of hydrophilic lenses. There was no apparent alteration in the course of the disease in either case. The use of hydrophilic soft lenses is suggested for symptomatic relief of the severe ocular pain experienced by patients with Mooren's ulcer.

Adult↗
PubMed1975

Rhegmatogenous retinal detachment after tributary retinal vein occlusion.

Two patients had rhegmatogenous retinal detachment after tributary retinal vein occlusion. Neovascularization adherent to the posterior hyaloid was avulsed, along with a plug of retinal tissue, as the vitreous body collapsed. Localized retinal detachments resulted. Photocoagulation successfully obliterated the retinal holes and prevented extension of the retinal detachments in both cases.

Female↗