poles of the eyeball

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poles of the eyeball 

They are: (1) The point on the anterior surface of the cornea which constitutes the summit. It is located at the intersection of the cornea with the geometrical axis of the eye (this is the anterior pole). (2) The point of intersection of the sclera with the geometrical axis (this is the posterior pole). See anteroposterior axis; axial length of the eye.
References in periodicals archive ?
Peripheral inflammatory changes give rise to floaters and inflammatory changes at the posterior pole and cause decreased central vision.
Examination of the posterior pole of the eye (optic disc, retinal arcades and macula) detects a high proportion of patients with referable or treatable pathology.
Definition of "threshold' and "pre-threshold' disease according to ETROP6 criteria Threshold disease --Positive finding in zone 1 and zone 2 (enlargement and toruosity of the posterior pole blood vessels) plus 5 contiguous clock-hours or 8 noncontiguous clock-hours stage 3 disease Definition of pre-threshold disease --Any stage of Zone I ROP --Zon II stage 2 ROP with plus disease --Zon II Stage 3 ROP without plus disease --Zon II, stage 3 with plus disease but fewer than five contiguous or eight cumulative clock hours Table 2.
Mumbai, Dec 14 (ANI/Business Wire India): Volk Optical has expanded its laser therapy lens offerings with the HR Centralis, providing detailed views of the central retina and posterior pole.
Patients and controls with any posterior pole pathology (macular degeneration, glaucoma, ischemic optic neurology, or other optic neuropathies) were excluded.
Birngruber, Chairman of the Medizinisches Laserzentrum Lubeck (Germany) and Visiting Professor at Harvard Medical School (USA), "The more challenging ophthalmic diseases are those that affect the retina and posterior pole.
Fundus examination was notable for the finding of faint grayish white areas of discoloration throughout the macula and posterior pole and serous elevation surrounding the optic nerve.
Therefore they can also be successfully applied against degenerative and chronic diseases of the posterior pole of the retina (for example, in cases of uveitis or AMD).
Previous results indicate that this mechanism controls the rate of axial elongation by regulating scleral extracellular matrix synthesis and turnover at the posterior pole of the eye (2).
When combined with RGB information that isolates the various layers of the posterior pole such as the nerve fiber, retinal structures and choroidal layer, the result is one more piece of information illustrating topographical views of a given area in a specific layer.
Surgical treatment, namely vitrectomy, is indicated in specific cases of chronic CMO and appears to be effective by removing vitreous adhesions and inflammatory mediators, which improves access of topical medication to the posterior pole.

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