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Aphakia is the absence of the lens of the eye, due to surgical removal, such as in cataract surgery, a perforating wound or ulcer, or congenital anomaly. It causes a loss of ability to maintain focus ( accommodation ), high degree of farsightedness ( hyperopia ), [ 1 ] and a deep anterior chamber .
A lamellar disc from a donor cornea is placed over the de-epithelialized host cornea and sutured into a prepared groove on the host cornea. Indications include treatment of keratoconus, refractive errors like myopia and high hypermetropia including aphakia, which cannot be corrected with conservative methods. [2]
Long-term systemic Immunosuppressive therapy is the main treatment of cancer-associated retinopathy. [5] It can be treated with a combination of chemotherapy and immunosuppression. [2] Although tumor removal and cancer regression may result in a decrease in circulating autoantibodies, this does not influence CAR progression. [8]
Oklahoma CyberKnife is a cancer treatment center based in Oklahoma. The center treats malignant and benign tumors in the lungs, spine, brain, liver, pancreas, eye, prostate and kidney using CyberKnife technology. Oklahoma CyberKnife has treated patients from around Oklahoma as well as patients from bordering states. Oklahoma CyberKnife opened ...
The hospital became a non-profit and was renamed Tulsa Regional Medical Center. It was sold to Columbia/HCA, a for-profit company from Nashville, Tennessee in 1996, which sold it to Hillcrest Medical Center in 1999. It became part of the Oklahoma State University Medical Center in 2006.
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Aphakic patients do not have a crystalline lens. The crystalline lens is often removed because of opacities called cataracts. The absence of this lens left the patient highly hyperopic (farsighted) in that eye. For some patients the removal was only performed on one eye, resulting in the anisometropia / aniseikonia.
Couching is the earliest documented form of cataract surgery. It involves dislodging the lens of the eye, thus removing the cloudiness caused by the cataract, resulting in aphakia . Couching was a precursor to modern cataract surgery and pars plana vitrectomy .