The presbyopia is the physiological loss of the ability to focus the eye that, with age, degenerates. The lens focuses movements, and muscle do charge is depleted. It is then given the inability to focus on objects at a certain distance. It appears over age 40 and progresses to 65.
The main symptom is muscle fatigue, resulting in reading problems. In patients without blemish distance glasses usually it happens at 40 and is maximized at 55 years. To replace him should be placed glasses. In myopic is curious, since the patient closely looks good but evil away, so it starts to take away glasses to see up close. In hyperopia the problem comes before 40. They start trouble from afar, accentuated by about from 36 years.
Multivitamins have been tried to treat it , but without results. The treatment is to correct the defect approach with glasses. By losing diopter glasses and let you read. Between 42 and 65 must be increased graduation.
For a decade there are surgical treatments: laser and intraocular lens implantation diffractive. The laser is not always useful or definitive. It is to try monovision leaving a miopizado eye for near and far dominant for. In intraocular lenses, however, the crystal is extracted incompetent and implanted lens. While not useful in all cases with preoperative Aberrometry and satisfaction is high, and final results. However, the latest generation multifocal lenses or trifocals are now the alternative to intraocular, allowing correct distance vision, near and intermediate (very used to focus on computers).