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hammoodys uploaded a new video
(1 day ago)
Canaloplasty is an ophthalmic surgical procedure that has been developed...
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Canaloplasty is an ophthalmic surgical procedure that has been developed as an alternative to trabeculectomy. In some cases, viscocanalostomy has been used in conjunction with cataract removal via phacoemulsification.
Canaloplasty is a non-penetrating surgical technique for glaucoma which aims to restore the natural drainage of fluid from the eye.
Canaloplasty may be performed under local or general anaesthetic. A superficial hinged flap of sclera is made and a deeper flap excised, exposing Schlemm's canal. A microcatheter with an illuminated tip is introduced into the canal and advanced around its entire circumference. As the catheter tip advances, viscoelastic fluid is injected into the canal to dilate it. After catheterisation of the entire canal length is complete, a suture is tied to the tip of the microcatheter, which is withdrawn, pulling the suture into the canal. The suture is cut from the microcatheter and tied in a loop encircling the inner wall of the canal. The suture is tightened, so distending the trabecular meshwork with the aim of widening the canal.The superficial flap is sutured. A special ultrasound imaging system is used to help identify the canal and to visualise the instruments in the canal before, during and after the surgery.
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hammoodys uploaded a new video
(1 day ago)
Pseudoexfoliation syndrome is characterized by flakes of granular materi...
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Pseudoexfoliation syndrome is characterized by flakes of granular material at the pupillary margin of the iris and throughout the inner surface of the anterior chamber. It is also associated with secondary open-angle glaucoma, known as pseudoexfoliation glaucoma, which is the most common identifiable form of secondary open-angle glaucoma worldwide.
Dvorak-Thebold suggested the term pseudoexfoliation to differentiate it from true exfoliation or lamellar delamination of the lens capsule found in glassblowers. True exfoliation syndrome is due to heat or infrared-related changes in the anterior lens capsule.
Patients may be asymptomatic, or they may complain of decreased visual acuity secondary to cataract or glaucomatous visual field changes.
Patients with pseudoexfoliation syndrome should have annual eye examinations for early detection of glaucoma.
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hammoodys uploaded a new video
(1 day ago)
Iris and angle neovascularization (Rubeosis) is a term that describes a...
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Iris and angle neovascularization (Rubeosis) is a term that describes abnormal blood vessel growth on the iris or cornea, or anterior chamber angle. Normally there are no visible blood vessels in these areas. When the retina has been deprived of oxygen, or ischemic, as with diabetic retinopathy or vein occlusion, abnormal vessels form to supply oxygen to the eye. Unfortunately, the formation of these vessels obstructs the drainage of aqueous fluid from the front of the eye, causing the eye pressure to become elevated. This usually leads to neovascular glaucoma.
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hammoodys uploaded a new video
(1 day ago)
Microspherophakia in 18 yr old high myopic patient with with chronic ang...
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Microspherophakia in 18 yr old high myopic patient with with chronic angle closure and uncontrolled intraocular pressure and a flat chamber.
Iris retractors were used to hook the anterior lens capsule, capsule tension ring, cionni ring was fixated to the Sclera, and the lens was implanted in the capsular bag.
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hammoodys uploaded a new video
(1 day ago)
Intraocular lens exhange technique demonstrating how to perform the surg...
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Intraocular lens exhange technique demonstrating how to perform the surgical procedure.
Choosing the right intraocular lens for the right patient can be a challenge. No matter how precise the lens calculations, at times the IOL can be mismatched to the patient. In this situation, an IOL exchange may be the best option to deliver satisfaction and good vision to the patient.
If the first IOL was compatible with the patient's expectations but just resulted in a refractive error, then a simpler procedure, such as a piggy-back IOL or an excimer-based corneal ablation, may be the better choice.
If, however, the patient has received an IOL design that he cannot not tolerate, such as a multifocal IOL or a blue-blocker IOL, then an IOL exchange is the more suitable procedure.
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