Sudden Loss of Vision

The green signal for pedestrians was about to end. He was in a hurry to get back to his house after a hectic duty at his office. His idea was to cross that important crossing before red signal would appear. When he crossed half of the road, suddenly he felt a sort of blackness in front of his eyes. It was like a black curtain in front of his eye. He did not know what to do at that moment. He was not able to see anything at that moment. Without knowing what to do he was standing at the half-way mark for long time. Meanwhile signals were getting changed frequently – green, red, purple and then once again green–and so on. He was hearing the noisy sounds of speeding vehicles moving on both his sides. He understood that there was something wrong with his eyes. He was slowly getting used to the circumstance. Likewise he had to spend nearly 20 minutes in the middle of the road. Meanwhile a police constable present at that crossing observed Mr. Fernandez. He did not understand why this fellow was not crossing the road even when he was getting the green signal. He came and enquired Mr. Fernandez. Fernandez explained that he had only one eye which was having good vision and that too the same eye had become suddenly blind. That Police person arranged for an ambulance in which Mr. Fernandez was shifted to nearest eye hospital.

There he was examined in detail and the diagnosis of Retinal Detachment was made. This was the cause for the sudden loss of vision for Mr. Fernandez. This is one of the many causes for sudden loss of vision in one eye.

Varifocal Contact Lenses

Your optometrist will be able to confirm whether or not you are suffering from presbyopia by carrying out a basic eye exam. There are a number of ways to correct the condition if you are found to have it.
Varifocal contact lenses are often used to help correct presbyopia. They are specially designed to give the wearer good vision close up and far away. This means that people who wear them do not have to change their lenses for driving and reading.

Bifocal glasses are also used to correct presbyopia. However many people do not like wearing them because they have a line in the center of the frame. This is not the case with varifocal lenses which means that no one will be able to see that you are wearing them.
In addition to varifocal lenses and bifocal glasses, surgery is also sometimes used as a corrective measure. Refractive surgery for instance is sometimes carried out in order to correct the shape of the patient’s cornea.

Although it is not possible to prevent presbyopia entirely there are things that you can do to look after your eyes. For instance, you should get them checked regularly, wear sunglasses on bright days and eat foods like carrots that contain Vitamin A and beta carotene.