Biomaterial Database

Pars plana vitrectomy for diabetic retinopathy. A report of 8 years' experience. 1979

G Blankenship

Vitrectomies have been performed on 299 cases of dense diabetic vitreous hemorrhages and been followed for 6 months. A successful visual result was obtained in 61% of the cases. The vitreous remained clear in 71% of the cases, and the maculas were attached in 66% of the cases 6 months following surgery. 168 cases of traction macular detachments underwent vitrectomy, and had 6-month follow-up examinations. Significant visual improvement was obtained in 26% of the cases, with stabilization of the preoparative vision in an additional 37% of the cases. The vitreous cavity was clear in at least 64% of the cases, and the macula attached in at least 52% of the cases. 86 cases had both dense vitreous hemorrhages and traction macular detachments, and had 6-month postoperative examinations, with significant visual improvement having been obtained in 31% of the cases, and stabilization of the preoperative vision in an additional 33% of the cases. The postoperative vitreous cavities were clear in 59% of the cases, and the maculas attached in at least 45% of the cases.

UI	MeSH Term	Description	Entries
D008266	Macula Lutea	An oval area in the retina, 3 to 5 mm in diameter, usually located temporal to the posterior pole of the eye and slightly below the level of the optic disk. It is characterized by the presence of a yellow pigment diffusely permeating the inner layers, contains the fovea centralis in its center, and provides the best phototropic visual acuity. It is devoid of retinal blood vessels, except in its periphery, and receives nourishment from the choriocapillaris of the choroid. (From Cline et al., Dictionary of Visual Science, 4th ed)	Lutea, Macula,Luteas, Macula,Macula Luteas
D008297	Male		Males
D008722	Methods	A series of steps taken in order to conduct research.	Techniques,Methodological Studies,Methodological Study,Procedures,Studies, Methodological,Study, Methodological,Method,Procedure,Technique
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D012163	Retinal Detachment	Separation of the inner layers of the retina (neural retina) from the pigment epithelium. Retinal detachment occurs more commonly in men than in women, in eyes with degenerative myopia, in aging and in aphakia. It may occur after an uncomplicated cataract extraction, but it is seen more often if vitreous humor has been lost during surgery. (Dorland, 27th ed; Newell, Ophthalmology: Principles and Concepts, 7th ed, p310-12).	Retinal Pigment Epithelial Detachment,Detachment, Retinal,Detachments, Retinal,Retinal Detachments
D003930	Diabetic Retinopathy	Disease of the RETINA as a complication of DIABETES MELLITUS. It is characterized by the progressive microvascular complications, such as ANEURYSM, interretinal EDEMA, and intraocular PATHOLOGIC NEOVASCULARIZATION.	Diabetic Retinopathies,Retinopathies, Diabetic,Retinopathy, Diabetic
D005128	Eye Diseases	Diseases affecting the eye.	Eye Disorders,Eye Disease,Eye Disorder
D005260	Female		Females
D005500	Follow-Up Studies	Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.	Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006470	Hemorrhage	Bleeding or escape of blood from a vessel.	Bleeding,Hemorrhages