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The Van Herick's technique has become the most commonly used qualitative method of assessing the size of the anterior chamber angle (ACA). Whereby, it involves comparing the depth of the peripheral anterior chamber to the thickness of the cornea, when a narrow beam is shone within the limbus at a 60°angle. [4]
Iridocorneal angle width: The width of the iridocorneal angle is one factor affecting the drainage of aqueous humour from the eye's anterior chamber. A wide angle allows sufficient drainage of humour through the trabecular meshwork (unless obstructed), whereas a narrow angle may impede the drainage system and leave the patient susceptible to ...
Plateau iris is a medical condition of the eye resulting from anterior displacement of the peripheral iris by the ciliary body, causing angle closure glaucoma. First line treatment for all causes of narrow angle glaucoma is laser iridotomy.
Patients with an angle at Shaffer grade 3 or above (open) showed an average intraocular pressure reduction of 37% reduction one year after trabectome surgery, and of 25% reduction one year after phaco-trabectome. These results suggest that trabectome surgery is a viable option for patients with narrow angles [15]
Primary angle closure glaucoma: Once any symptoms have been controlled, the first line (and often definitive) treatment is laser iridotomy. This may be performed using either Nd:YAG or argon lasers, or in some cases by conventional incisional surgery. The goal of treatment is to reverse and prevent contact between the iris and trabecular meshwork.
Superior mesenteric artery compressing the duodenum, featuring the superior mesenteric artery syndrome. Superior mesenteric artery (SMA) syndrome is a gastro-vascular disorder in which the third and final portion of the duodenum is compressed between the abdominal aorta (AA) and the overlying superior mesenteric artery.
Rounded shoulder posture (RSP), also known as “mom posture”, [1] is a common postural problem in which the resting position of the shoulders leans forward from the body’s ideal alignment. [1]
The size of this angle is an important determinant of the rate aqueous humour flows out of the eye, and thus, the intraocular pressure. The anterior chamber angle is the structure which determines the anterior chamber depth. An extremely narrow anterior chamber angle is a feature of angle closure glaucoma. [1] [2]