The HRT is superior to other optic nerve head analyzers for accuracy in 3-dimensional optic nerve head topography. The HRT uses scanning laser tomography to produce the 3-dimensional image, which allow precise measurements of the optic nerve head parameters. This technology enhances the probability of differentiating between normal eyes and glaucomatous eyes even before visual field defects are present. The optic CUP, RIM and RNFL assessment are essential elements of detecting and assessing the damage caused by glaucoma. The advanced imaging of the HRT is proven to measure all three elements and to detect glaucoma at a better level than stereo fundus photography with expert interpretation.
The OCT3 is being used to diagnose and monitor optic nerve disorders by determining the degree of retinal ganglion cell-axonal loss resulting in thinning of the retinal nerve fiber layer. Thinning is monitored most frequently in glaucoma, since there are a number of patients with early glaucoma who have normal visual field results, but pathologic thinning of the retinal nerve fiber layer, compared to age-matched normals. The OTC3 works much like an ultrasound, except that it uses light rather than sound and thereby achieves ten times better resolution. A typical test takes less than 10 minutes making it possible for everyone to undergo a rigorous retinal screening without discomfort.
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A YAG Laser is used to remove the haze of a membrane situated behind the intraocular lens (IOL) that can develope after cataract surgery. Usually the patient's eye is dilated before the procedure. The procedure only takes a few minutes and is completely painless. Following the procedure there is no discomfort and most ophthalmologists will recommend an anti-inflammatory eye drop medication. Most patients may expect their vision to improve within a day following the procedure and may resume normal activities immediately. Patients should anticipate some “floaters” following this procedure, however, these will likely resolve within a few weeks.
A Diode Laser is used to treat glaucoma. It is an outpatient procedure that is done in the office. The eye is anesthetized, and a laser probe, which looks like a small pen, is then placed on the eye, just peripheral to the iris. The laser energy is directed into the eye towards the ciliary body, which is partially destroyed. The whole procedure takes only a minute or two. Most people experience only minor discomfort during the procedure. Some patients may experience blurry vision or slight discomfort, but this tends to resolve within a few days. Follow-up visits are scheduled for the day after the procedure and the following week. Most people will need to be on two eye drops up to four times a day for a few weeks to help the eye heal after the procedure. This procedure is intended to reduce the amount of fluid produced in the eye thus decreasing the need for glaucoma eye drops.