Biomaterial Database

[Tonographic and tonometric aqueous humor outflow tests after trabeculotomy (author's transl)]. 1977

R Dannheim, and M Kubin

In 10 eyes which trabeculotomy was performed because of primary open angle glaucoma preoperatively, 1 to 3 months and 12 months postoperatively the diurnal curves and tonographic results were compared. The i.o. pressure was reduced in all eyes. The ocular rigidity was decreased from 0.0206 +/- 0.0019 (s.d.) preoperatively to 0.0164 +/- 0.0015 after 1 to 3 months and to 0.0168 +/- 0.0017 after 12 months. Regarding the individual change of ocular rigidity, the outflow facility was improved on an average of from 0.13 +/- 0.02 preoperatively to 0.37 +/- 0.10 or 0.20 +/- 0.03 units postoperatively. This means a reduction of the resistance to aqueous outflow from 10.62 +/- 1.89 to 3.88 +/- 0.57 or 5.77 +/- 0.77 units. The differences are statistically significant. If the changings of ocular rigidity are not regarded there is no significant improvement of the conditions of aqueous humor outflow.

UI	MeSH Term	Description	Entries
D007429	Intraocular Pressure	The pressure of the fluids in the eye.	Ocular Tension,Intraocular Pressures,Ocular Tensions,Pressure, Intraocular,Pressures, Intraocular,Tension, Ocular,Tensions, Ocular
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
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
D005901	Glaucoma	An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed)	Glaucomas
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D001082	Aqueous Humor	The clear, watery fluid which fills the anterior and posterior chambers of the eye. It has a refractive index lower than the crystalline lens, which it surrounds, and is involved in the metabolism of the cornea and the crystalline lens. (Cline et al., Dictionary of Visual Science, 4th ed, p319)	Aqueous Flare,Intraocular Fluid,Aqueous Flares,Aqueous Humors,Flare, Aqueous,Fluid, Intraocular,Fluids, Intraocular,Humor, Aqueous,Humors, Aqueous,Intraocular Fluids
D014065	Tonometry, Ocular	Measurement of ocular tension (INTRAOCULAR PRESSURE) with a tonometer. (Cline, et al., Dictionary of Visual Science, 4th ed)	Ocular Tonometry
D014129	Trabecular Meshwork	A porelike structure surrounding the entire circumference of the anterior chamber through which aqueous humor circulates to the SCHLEMM'S CANAL.	Meshwork, Trabecular,Meshworks, Trabecular,Trabecular Meshworks