Biomaterial Database

High resolution ultrasonography in eyes with angle-closure glaucoma associated with the cicatricial stage of retinopathy of prematurity. 2005

Atsuko Suzuki, and Nagako Kondo, and Hiroko Terasaki

Department of Ophthalmology, Nagoya University School of Medicine, Aichi, Japan.

BACKGROUND Angle-closure glaucoma in children at the cicatricial stage of retinopathy of prematurity (ROP) has been thought to be caused by the anterior displacement of the lens-iris diaphragm resulting from contraction of a retrolental fibrous membrane. Other possible mechanisms include pupillary block and ciliary block. METHODS Three patients (three eyes) at the cicatricial stage of ROP with angle-closure glaucoma were examined by high-resolution ultrasonography before and after peripheral iridectomy. METHODS High-resolution ultrasonography preoperatively showed that the angle was closed. A retrolental fibrous membrane was attached behind the lens. After the iridectomy, ultrasonography showed an open angle, and the intraocular pressure was normal. CONCLUSIONS The angle closure in our three patients was caused mainly by a pupillary block and could be treated by peripheral iridectomy.

UI	MeSH Term	Description	Entries
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
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
D007498	Iris	The most anterior portion of the uveal layer, separating the anterior chamber from the posterior. It consists of two layers - the stroma and the pigmented epithelium. Color of the iris depends on the amount of melanin in the stroma on reflection from the pigmented epithelium.
D002924	Ciliary Body	A ring of tissue extending from the scleral spur to the ora serrata of the RETINA. It consists of the uveal portion and the epithelial portion. The ciliary muscle is in the uveal portion and the ciliary processes are in the epithelial portion.	Corpus Ciliare,Corpus Ciliaris,Bodies, Ciliary,Body, Ciliary,Ciliare, Corpus,Ciliares, Corpus,Ciliari, Corpus,Ciliaris, Corpus,Ciliary Bodies,Corpus Ciliares,Corpus Ciliari
D005865	Gestational Age	The age of the conceptus, beginning from the time of FERTILIZATION. In clinical obstetrics, the gestational age is often estimated from the onset of the last MENSTRUATION which is about 2 weeks before OVULATION and fertilization. It is also estimated to begin from fertilization, estrus, coitus, or artificial insemination.	Embryologic Age,Fetal Maturity, Chronologic,Chronologic Fetal Maturity,Fetal Age,Maturity, Chronologic Fetal,Age, Embryologic,Age, Fetal,Age, Gestational,Ages, Embryologic,Ages, Fetal,Ages, Gestational,Embryologic Ages,Fetal Ages,Gestational Ages
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000869	Anterior Eye Segment	The front third of the eyeball that includes the structures between the front surface of the cornea and the front of the VITREOUS BODY.	Anterior Eye Segments,Eye Segment, Anterior,Eye Segments, Anterior,Segment, Anterior Eye,Segments, Anterior Eye
D012178	Retinopathy of Prematurity	A bilateral retinopathy occurring in premature infants treated with excessively high concentrations of oxygen, characterized by vascular dilatation, proliferation, and tortuosity, edema, and retinal detachment, with ultimate conversion of the retina into a fibrous mass that can be seen as a dense retrolental membrane. Usually growth of the eye is arrested and may result in microophthalmia, and blindness may occur. (Dorland, 27th ed)	Retrolental Fibroplasia,Fibroplasia, Retrolental,Fibroplasias, Retrolental,Prematurity Retinopathies,Prematurity Retinopathy,Retrolental Fibroplasias
D014463	Ultrasonography	The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz.	Echography,Echotomography,Echotomography, Computer,Sonography, Medical,Tomography, Ultrasonic,Ultrasonic Diagnosis,Ultrasonic Imaging,Ultrasonographic Imaging,Computer Echotomography,Diagnosis, Ultrasonic,Diagnostic Ultrasound,Ultrasonic Tomography,Ultrasound Imaging,Diagnoses, Ultrasonic,Diagnostic Ultrasounds,Imaging, Ultrasonic,Imaging, Ultrasonographic,Imaging, Ultrasound,Imagings, Ultrasonographic,Imagings, Ultrasound,Medical Sonography,Ultrasonic Diagnoses,Ultrasonographic Imagings,Ultrasound, Diagnostic,Ultrasounds, Diagnostic
D015812	Glaucoma, Angle-Closure	A form of glaucoma in which the intraocular pressure increases because the angle of the anterior chamber is blocked and the aqueous humor cannot drain from the anterior chamber.	Glaucoma, Closed-Angle,Glaucoma, Angle Closure,Glaucoma, Narrow-Angle,Glaucoma, Uncompensated,Glaucoma, Uncompensative,Angle Closure Glaucoma,Angle Closure Glaucomas,Angle-Closure Glaucoma,Angle-Closure Glaucomas,Closed-Angle Glaucoma,Closed-Angle Glaucomas,Glaucoma, Closed Angle,Glaucoma, Narrow Angle,Glaucomas, Angle Closure,Glaucomas, Angle-Closure,Glaucomas, Closed-Angle,Glaucomas, Narrow-Angle,Glaucomas, Uncompensated,Glaucomas, Uncompensative,Narrow-Angle Glaucoma,Narrow-Angle Glaucomas,Uncompensated Glaucoma,Uncompensated Glaucomas,Uncompensative Glaucoma,Uncompensative Glaucomas