Posterior keratoconus is a rare
corneal disorder that results in non-inflammatory thinning of the cornea,
leading to cone-like protuberance in the posterior cornea. Ocular coloboma is malformation due to faulty closure of the embryonic fissure, where the entire
ocular structure may affect iris, ciliary body, choroid, optic nerve or all of
the above. Posterior keratoconus may lead to vision loss over a period of time.
A rare case of both Posterior keratoconus along with Ocular coloboma was
presented here. The study predict genetic linkage as one of the reasons and
suggest further studies to explore the link between Posterior keratoconus and
the Ocular coloboma.
Showing posts with label keratoconus journal. Show all posts
Showing posts with label keratoconus journal. Show all posts
Thursday, 16 March 2017
Tuesday, 7 March 2017
Keratoconus Management: Role of GP Contact Lenses
Keratoconus is a corneal disorder
progressive characterized by thinning and steepening of the central and
paracentral cornea, which leads to protrusion. The exact cause of the disease remains to be fully elucidated although its etiology probably is multi factorial with a genetic predisposition to keratoconus influenced by external environmental factors (eye rubbing and atopy) with different systemic
involvement. In the early stages, keratoconus can be managed with spectacles or
contact lenses (CL), but when keratoconus progresses, other surgical techniques
are often required.
For example, anterior lamellar
(dDALK) or penetrating keratoplasty (PK) permit than 3 of 4 patients achieve
best-corrected visual acuity of 20/40 or better. Intra corneal ring segment(ICRS) are proposed to increase corneal stability and decrease the astigmatism a symmetry normalizing the corneal contour with slight improvement of patients’visual acuity. Corneal collagen cross-linking (CXL) is a common technique
proposed to reduce disease progression with a light improvement of visual
acuity (1 to 2 Snellen lines).
Wednesday, 9 November 2016
Keratoconus Management: Role of GP Contact Lenses
Keratoconus is a corneal disorder
progressive characterized by thinning and steepening of the central and Para
central cornea, which leads to protrusion. The exact cause of the disease remains to be fully elucidated although its etiology probably is multi factorial with a genetic predisposition to keratoconus influenced by external environmental factors (eye rubbing and atopy) with different systemic involvement. In the early stages, keratoconus can be managed with spectacles or
contact lenses (CL), but when keratoconus progresses, other surgical techniques
are often required.
For example, anterior lamellar
(dDALK) or penetrating keratoplasty (PK) permit than 3 of 4 patients achieve
best-corrected visual acuity of 20/40 or better. Intra corneal ring segment(ICRS) are proposed to increase corneal stability and decrease the astigmatism a symmetry normalizing the corneal contour with slight improvement of patients’visual acuity. Corneal collagen cross-linking (CXL) is a common technique
proposed to reduce disease progression with a light improvement of visual acuity
(1 to 2 Snellen lines).
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