in society ‘yellow spot disease’
macular degeneration known as (non-exudative) and age (exudative) has two types. About yellow spot patients 90%
Although is the dry type, severe vision loss usually occurs in wet type patients. Vision loss in dry type macular degeneration, atrophy of the layers in the visual center (dry). (scar) tissue, vision is lost. Wet type vision loss is a faster and more advanced level of vision loss.
In both types, the patient loses central vision. It becomes difficult to read a book, to distinguish phone numbers or money, to recognize the person he is looking at, to watch television. Yellow spot disease usually occurs after the age of 50, but vision loss often occurs over the age of 60-65. The discomfort complicates the daily life of the patient. Advanced age, hypertension, genetic factors, smoking, poor diet in antioxidant substances, exposure to sunlight for a long time can cause this disease. Among these reasons, genetic factors have an important place.
There are several treatment options in the treatment of wet-type macular degeneration, which causes sudden vision loss. Intraocular injections, that is, needle therapy, which have been developed especially in recent years, are an extremely effective treatment method for the elimination of bleeding. However, loss of central vision is inevitable in delayed cases, treatment-resistant cases and some dry-type macular degeneration diseases. Unfortunately, there is no other treatment option in these patients. This is a condition that usually affects both eyes. In a situation where the vision of both eyes is very reduced, it is very difficult for the patient to maintain his daily life.
Binoculars/ magnifying glasses
With special glasses called ‘assisted vision devices’, a magnifying effect can be created and a slight increase in vision, albeit limited, can be achieved.
These glasses are called telescopic glasses. It functions as a kind of binocular. With telescopic glasses, it is partially possible for the patient to see far and near. However, it is very difficult for patients to adapt to these glasses. The field of vision of these glasses is very narrow and the patient sees as if he is looking through a keyhole. The rate of patients to adapt to these glasses is 10 percent. Although his central vision is strengthened, it is not possible for him to move and walk with glasses because peripheral vision disappears. However, in yellow spot disease, the patient can see the surroundings even though he cannot see where he is looking. But when binoculars are worn, peripheral vision, which makes daily life easier, disappears.
Telescopic intraocular lenses
Telescopic intraocular lenses have been developed with a similar logic in recent years, instead of binocular glasses that are difficult to use. These are also called miniature telescopic lenses. It is a form of telescopes used as glasses, adapted to the eye. The advantage of the patient is that there is no deprivation of peripheral vision experienced with telescopic glasses. The patient can perform both central and peripheral vision. In this system, first of all, the patient must not have undergone cataract surgery. Because telescopic intraocular lenses are placed in the eye by applying cataract surgery. After the patient’s lens is removed with the phacoemulsification method, two lenses, one with high positive value and one with high negative value, are placed into the eye. These lenses not only enlarge the current image, but also move the image from the diseased visual center to a healthier retina area with a prismatic effect. In other words, a new yellow spot is created for the patient.
Before deciding on this surgery, a prismatic telescopic simulation examination is performed to determine whether the patient will benefit from this surgery. If the patient’s current vision increases, it is expected that he will also benefit from this surgery. After the surgery, a rehabilitation can be applied so that the patient can benefit from these lenses to the maximum extent.
Apart from yellow spot disease, successful results can also be obtained in some diseases that cause irreversible damage to the visual center, such as some congenital macular diseases, visual center damage due to high myopia.