Macula: The central area of the retina, which allows one to see finer details and colour. It receives the light and sends electrical impulses from the optic nerve to the brain.
Retina: A collection of cells that makes a wall called the retina at the back of the eye. It focuses the light at the back of the eye. Lens: A small clear disk right behind the pupil. With expansion and contraction, it regulates how much light goes into the eye. Pupil: The black hole at the centre of the iris. The colour of the iris may vary depending on your eye colour and may be brown, dark brown, hazel, grey, etc. Iris: The coloured part of the eye that controls the pupil’s opening. The tears help lubricate the cornea and protect the eye. It includes the following key parts that work together to provide us with a clear vision:Ĭornea: A clear layer in front of the iris made up of collagen and water. The anatomy of the eye is complex compared to other body organs. Initially, problems such as eye floaters, shadows in vision, and blurred vision may appear. A person’s retina may weaken due to significant conditions such as myopia (nearsightedness).īarrage laser is also sometimes referred to as barrage laser photocoagulation. It can help you avoid complications that may further require the need of surgical treatment. It may also help treat retinal tears found during a regular eye examination.Īn argon laser beam is used in this procedure. It is performed as a preventive treatment for conditions like retinal detachment. Patients with pre-existing retinal tears, retinal holes or lattice degeneration may safely undergo FOV, or vitrectomy.Barrage laser is a laser procedure to strengthen the weak regions of the retina. Lattice degeneration is a normal finding of the retina. If a tear or hole is found, it most easily treated at this time. In fact, it is standard practice to look for holes and tears at the end of the case. In the image, a retinal tear is discovered and then treated with a laser probe. Regardless, both tears and holes found at the time of surgery can be safely treated with laser or cryotherapy. It may also be possible a retinal tear is created during surgery. It is possible that a retinal tear can be found at the time of vitrectomy (FOV).
For tears or holes which are difficult to see, cryotherapy is an excellent alternative.Ĭryotherapy tends to cause more discomfort and swelling. The only difference is that laser is easier to perform, but not every hole or tear can be treated with laser depending upon location.īelieve it or not, certain tears/holes are difficult to see. Tears and holes are usually treated with laser, or sometimes, cryotherapy (freezing). Retinal tears, without a retinal detachment, can usually be treated with laser to prevent the chance of retinal detachment. While it is true that patients with lattice degeneration may have an increased risk of retinal detachment, having a vitrectomy performed does NOT increase the risk of retinal tears or retinal detachment anymore than a person without lattice degeneration. Either the holes which sometimes are found with lattice degeneration or the tears which occur adjacent to the areas of lattice can cause a rhegmatogenous retinal detachment. The concern about lattice degeneration is the association with retinal detachments. Both retinal tears and retinal holes may lead to a retinal detachment. Retinal tears may occur with lattice degeneration, too. These atrophic holes are very similar to taking a pencil erasure and rubbing hard enough until you get a hole in the paper. It is noted more often in patients with moderate to high myopia.Ītrophic retinal holes are commonly associated with lattice degeneration. Lattice degeneration is often described as a natural thinning of the retina and affects about 5-10% of the normal population. Retinal tears and holes associated with lattice degeneration may lead to retinal detachment, but prophylactic laser treatment can prevent or decrease the chances of retinal detachment. While it may increase your chance of developing a retinal detachment, it is not a contraindication to vitrectomy (FOV). Lattice degeneration is a common and normal finding in the retina.
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