Vitrectomy surgery for diabetic retinopathy.
Explore the source record for details and available documents.
Diabetic Retinopathy↗
Biomedical subjects
F L Myers
Publications and source records attributed to F L Myers.
A method for recording vitreoretinal relationships.
A method for recording vitreoretinal relationships is described. The system includes designations for the extent and height of posterior hyaloid detachment and for sites of abnormal vitreoretinal adhesions. The method may be used for preoperative evaluation of eyes prior to vitrectomy surgery or for the follow-up of patients with vitreoretinal disease.
Eye Diseases↗
Abnormal chloroidal circulation: association with arteriovenous fistula in the cavernous sinus area.
Abnormalities in the choroidal circulation developed in two patients with arteriovenous fistulae in the area of the cavernous sinus. Fluorescein angiography in both patients revealed delayed filling of their choroidal circulation. In the first patient, this was associated with a central serous detachment of the retina secondary to a retinal pigment epithelial defect. In the second patient, a large choroidal detachment and serous retinal detachment, which resolved spontaneously developed. High venous pressure, low mean arterial pressure, and subsequent tissue hypoxia are postulated to be the cause of the altered choroidal circulation. The possibility of occult dural arteriovenous fistulae should be considered in the differential diagnosis in patients with a choroidal detachment, proptosis, and a red eye.
Aged↗
Subretinal neovascularization associated with fundus flavimaculatus.
Hemorrhagic disciform degeneration centered in the fovea with serous detachment of the overlying neuroepithelium developed in two patients with fundus flavimaculatus. Fluorescein angiography disclosed the presence of subretinal neovascular membranes. There was no evidence of other diseases associated with subretinal neovascularization. Fundus flavimaculatus must be added to the growing list of diseases associated with subretinal neovascularization.
Adolescent↗
Unplanned extracapsular cataract extraction in postvitrectomy eyes.
A 70-year-old man, a 59-year-old woman, and a 57-year-old woman underwent pars plana vitrectomy. In all three cases, cataracts developed in the eyes that had been operated on. During cataract extraction, which included massage of the globe after retrobulbar anesthesia and a conventional ab externo incision, loss of lens material into the vitreous cavity occurred in all three postvitrectomy eyes.
Aged↗
Postvitrectomy keratopathy.
Twenty-six of 75 eyes undergoing pars plana vitrectomy developed significant corneal complications requiring treatment. Slow or nonhealing epithelial abrasions, recurrent corneal erosion, and microcystoid and striate keratitis were among the most frequent problems. Significant predisposing factors included diabetes, surgical trauma such as epithelial debridement and prolonged operative time, aphakia, and postoperative glaucoma or hyphema. Corneal complications may be minimized with careful preoperative and operative precautions.
Adult↗
Clinicopathologic correlations in diabetic retinopathy. II. Clinical and histologic appearances of retinal capillary microaneurysms.
One eye of a 21-year-old patient with proliferative diabetic retinopathy was available for clinicopathologic correlation. The fluorescent spots in a fluorescein angiogram were correlated with the changes in color fundus photographs and with the corresponding histologic findings in a trypsin digest preparation of the retina. A round, regular fluorescent spot was the most reliable diagnostic indicator of retinal capillary microaneurysms, although some microaneurysms appeared as irregular fluorescent spots, tiny fluorescent spots, or dark silhouettes with or without fluorescent halos. Very large fluorescent spots correlated with very large irregular pouches that may represent intraretinal neovascularization. Fluorescein angiography was considerably more sensitive than color fundus photography for the detection of retinal capillary microaneurysms.
Adult↗
Retinal ischemia in diabetic retinopathy.
Eight patients with proliferative diabetic retinopathy developed extensive retinal arteriolar and capillary obstruction. Ophthalmoscopy showed many white, thread-like retinal arterioles associated with capillary and venous dilatation. Widespread retinal arteriolar and capillary nonperfusion was demonstrated by fluorescein angiography. Ischemic maculopathy resulted in severe loss of visual acuity in some eyes. The severe degree of retinal ischemia was accompanied by optic disc pallor and neovascularization and a high incidence of rubeosis iridis with neovascular glaucoma. Patients with this variety of diabetic retinopathy have a poor prognosis of retaining useful vision.
Adolescent↗
Patterns of ischemia in diabetic retinopathy.
Explore the source record for details and available documents.
Adolescent↗
Pars plana vitrectomy. Vitrectomy in diabetic retinopathy.
In spite of the rather high rate of complications, it is clear that in selected cases of proliferative diabetic retinopathy with massive long-standing vitreous hemorrhage, significant improvement can be accomplished by pars plana vitrectomy. However, the number of eyes recovering 20/40 vision or better remains small (7% in our series at 9 to 15 months postvitrectomy), and consideration needs to be given to means to improve these figures. Whether vitrectomy at an earlier stage of the retinopathy can accomplish this is the subject of an upcoming cooperative study under the sponsorship of the National Eye Institute.
Cataract Extraction↗