Inevitable with age, presbyopia can be corrected by wearing glasses or corrective lenses. It is also possible, for older patients, to fight against this disorder of the vision, by performing an operation of presbyopia by laser or by implants. What is the difference between these two techniques ? Their advantages and disadvantages ?
What is presbyopia ?
Presbyopia is a natural phenomenon causing eye problems that affects most people over 45 years of age, and who is undergoing a progressive development up to the age of 65 years before stabilizing. This vision disorder common in seniors is due to the normal aging of the eye, and more precisely of the lens (convergent lens of the eye) which tends to harden and sclerotic with age. However, this organ plays an indispensable role in the formation of images which are then transmitted to the brain by the optic nerve…
The symptoms of presbyopia
Presbyopia is manifested in the patient by a greater difficulty to focus its near vision, making it complicated to read or work in close proximity. Its effects are progressive in time, and are not diagnosed in the immediate future.
In its beginnings, reading small print becomes a little more difficult in the absence of enough brightness in the room. At an advanced stage, it even becomes impossible to read small characters, no matter what the conditions. Therefore, it is necessary to wear glasses or contact lenses with corrective lenses to be able to continue its daily activities, and glasses that will need to be changed regularly over time with the evolution of the disorder.
If they suspect to be achieved, the patients must go to an ophthalmologist to get a diagnosis is established, and a partial support of health Insurance (approximately 60%) of the corrective lenses, the rest being covered by complementary health. They may also opt for an operation that is not supported by social Security.
How to choose a operation presbyopia ?
It is important to know that presbyopia is a treatable disease for those who do not want to wear glasses or lenses for practical reasons, aesthetic, sporting or professional. The treatment necessarily involves a surgical operation of the eye : a laser treatment or a replacement of the crystalline lens with an implant. The choice between these two operations of presbyopia depends on the age and severity of the visual impairment of patients.
The operation of presbyopia by laser, also known as Lasik in the current language, is the technique most frequently used. It can be done at any time without the need to wait until the impairment is complete, and displays the rate of complications is very low. This simple and painless procedure, which takes only a few minutes, requires no general anesthesia or hospitalization. The results are almost immediate : the patient can stop wearing her glasses the same day or the next day. Its effects are long-lasting, but temporary : a second operation may be necessary at the end of ten or twenty years.
The operation of the presbyopia implant takes place in the context of a surgical procedure under local anesthesia on an outpatient basis (the patient leaves the hospital the same day). It aims to completely replace the crystalline lens is deficient, and is commonly performed when the vision is very degraded. More expensive than the laser technique, it enables to correct not only presbyopia, but also other disorders affecting the crystalline lens as myopia or hyperopia. Similarly, it helps to get rid of the symptoms of the cataract. The results are immediate and definitive : the patient is finished with presbyopia for life.
Other diseases affecting the eyes of older people can be treated or at least slowed down. This is particularly the case of the AMD , which has the symptom to the appearance of a dark spot in the middle of the field of vision, or glaucoma which the symptom is a loss of the visual field (especially on the sides).