Intravitreal injection is injection of medicine into the vitreous cavity within the eye. It is used to treat various retinal disorders, such as wet age-related macular degeneration and diabetic retinopathy. Two types of medicines are typically injected: anti-VEGF drugs and steroids. Anti-VEGF drugs block the signals that cause new blood vessels to form and leak fluid. Steroids reduce inflammation and decrease fluid leakage. Steroids can also be effective when injected around the eye, rather than into the eye. Prior to an intravitreal injection, the eye is numbed with an anesthetic and cleaned with an antiseptic to reduce the chance of infection. It is unusual to experience significant pain during an injection but there may be a pressure sensation.
An intravitreal implant is a drug delivery system surgically implanted in the vitreous of the eye, for sustained release of drug to the posterior eye segment.
Much like the film in a camera, the retina is responsible for creating the images one sees. When the retina detaches, it separates from the back wall of the eye and is removed from its blood supply and source of nutrition. If it remains detached, the retina will degenerate and lose its ability to function. Fortunately, over 90% of retinal detachments can be repaired with a single procedure. There are three different surgical approaches to treating this condition: the scleral buckle procedure, vitrectomy, and pneumatic retinoplexy. If you are diagnosed with retinal detachment, Dr. Stroh will discuss which option suits you best.
Retinal laser therapy is performed as treatment for a variety of retinal disorders including diabetic retinopathy, age-related macular degeneration and ocular histoplasmosis. The laser is an instrument that produces a pure, high-intensity beam of light energy. The laser light can be precisely focused onto the retina, selectively treating the desired area while leaving the surrounding tissues untouched. The absorbed energy creates a tiny spot to destroy lesions or join tissues together. Laser surgery is usually painless. This treatment can often preserve vision or prevent vision loss if performed in a timely fashion.
Ophthalmology was the first specialty to use the laser. Lasers use short bursts of high-energy light to destroy abnormal cells. Originally used to prevent a detached retina, ophthalmic lasers now are used to stop bleeding, cut tiny openings, and evaporate small amounts of tissue. Laser therapy is usually a short in-office procedure.
Fluorescein angiography is a specialized type of photographic eye test that is used to detect blood circulation problems, swelling, leaking, or abnormal blood vessels in the retina and choroid, structures that are located in the back of your eyes. The test uses an injected dye and a special camera to take photos of vascular structures. It is used to diagnose certain eye conditions, including retinopathies and macular degeneration. Fluorescein angiography is a simple and short test that is performed in our office.
Indocyanine green (ICG) angiography is a high-speed photographic eye test that is used to detect blood circulation problems in the choroid. The choroid is a blood vessel layer located under the retina in the back of your eye. ICG can be helpful for gathering in-depth information about bleeding in the back of the eye and the functional status of the eye when standard examination and testing alone cannot isolate the problem. The test uses an injected dye and special cameras to take photos of the blood vessels. ICG is used to diagnose certain eye conditions, such as macular degeneration, or to determine if laser treatment is possible. ICG is a short procedure that is performed in our office.
Optical Coherence Tomography (OCT) is a new imaging technology that allows for measurement of the thickness of the retina and visualization of the different retinal layers. The retina is located at the back of your eye. OCT takes cross-sectional pictures of the retina. It is a fast non-contact and non-invasive procedure. OCT is used to diagnose certain eye conditions and diseases, such as age-related macular degeneration and macular puckers, macular edema, and macular holes.
Fundus photography is a specialized medical imaging test used to take pictures of the structures located at the back of the eye, including the retina. It produces a series of photos that are helpful for diagnosing, documenting, and monitoring certain eye conditions. Fundus photography is a short painless procedure that is performed in our office.
Ultrasound, also referred to as echography, uses high frequency sound waves to produce images of the internal eye structures. It is a helpful diagnostic tool if cataracts, blood, or other conditions prevent a doctor from viewing inside of your eye with traditional methods. A-scan and B-scan ultrasound are helpful for diagnosing retinal detachment, vitreous bleeding, tumors, inflammation, lesions in the eye socket bone, or foreign bodies in the eye. A-scan ultrasound is used to take measurements for artificial lenses for cataract surgery. This quick and painless procedure can be performed in our office.
Visual field testing is used to detect visual field loss. Visual field loss may result from disorders or diseases of the eye, optic nerve, or brain. A common method of visual field testing involves having you focus at a point while flashes of light are displayed on a screen. You push a button whenever you see a flash of light and a computer maps a record of your responses. Your doctor can review the results to determine the extent of your visual field.