Visual impairment may occur from childhood, as is the case with myopia. But other disorders can appear much longer, since due to aging of the eye, this occurs in the case of presbyopia, which usually appears at the age of 45 years.
Presbyopia is not considered an ophthalmologic disease because it is the result of the natural development of the eye and its aging.
This visual impairment occurs in approximately 45% of people, and between the ages of 44 and 45 is one of the most common visual impairments. Some medical sources say that presbyopia affects almost everyone and that the only difference between people is the age at which vision problems occur. In some people, presbyopia can occur at the age of 45 or earlier, while in others presbyopia begins only at the age of 60 and is very easy.
Symptoms of Presbyopia
People who are beginning to experience presbyopia, begin to feel uncomfortable, especially when reading a text, they feel the need to increase the lighting or move the text away from the eyes in order to better distinguish the letters. The first signs warning about the announcement of presbyopia.
With presbyopia, distant vision remains good and unchanged, except when a person is already suffering from another disorder or eye disease that changes distant vision, such as myopia, which, unlike the ideas received, does not protect presbyopia and does not delay its appearance. The only advantage that myopic people have compared to presbyopia is that even if this disorder does occur, myopic people can use myopia to see better, because their sharp visual field is biased, and their near vision is favored.
This is near vision, which changes, reading characters of normal size becomes more complex, and you need more light and move text to read or write support.
Presbyopia and other visual impairment
Presbyopia can be added to one or more other visual defects that already exist in a person who enters the age at which presbyopia occurs. And in this case, depending on the type of pre-existing visual impairment, presbyopia more or less complicates vision problems.
As we have said, with myopia, the appearance of presbyopia does not necessarily aggravate the situation, and in many myopic, myopia even allows you to have a slight advantage, because this disorder somehow contributes to near vision
With farsightedness, the appearance of presbyopia will significantly impair near vision, because farsightedness is a near vision disorder, and its effect is added to the effect of presbyopia. In people with presbyopia, presbyopia may appear much earlier than those who do not have farsightedness.
This cumulative effect can also be observed when presbyopia is associated with astigmatism.