Bifocal Contact Lens

Tell Me More About Bifocal Contact Lenses

The elderly are prone to developing the condition called  presbyopia. This is an eye infection in which the eyes are not able to focus on incoming light. This is  a major problem because in this malady, the eye muscles lose their flexibility. Bifocal contact lenses are a complete solution to correct this problem.

Presbyopia usually afflicts patients in the later stages of life and they are not able to read books or newspapers which are very close to their eyes. Excessive use of computer screens can create blurred vision. Bifocal contact lenses have a major advantage in treating this problem, as they add an extra layer of near vision correction. This allows the user to see objects which are very close up.

The bifocal contact lenses have a far vision layer also. They are available in a number of designs. The three major design types are the altering, concentric and the simultaneous design. The altering bifocal contact lens is also called the translating bifocal lens. In this type of lens, the far and near corrective layers of the contact lens are completely different from the other. The near correction layer is at the bottom of the alternating bifocal contact lens.

The near correction layer, in the case of an alternating contact lens, can be reversed when the need arises. You can also add or change the intermediate layer of the alternating bifocal contact lens. In the case of concentric bifocal contact lenses, the arrangement of far and near layers of the contact lens is arranged in concentric circles or rings. The central ring holds the near vision. The outermost ring holds the distance  vision.

This arrangement of concentric contact lenses can be changed or reversed if you wish. In other words  the far vision layer will be at the center and the near vision layer will be at the outermost ring. In case of simultaneous bifocal contact lenses, both layers are at the center of the ring. Although this seems to be strange, your eyes are capable of adapting to every corrective layer, with the passage of time.

It is always advisable to make an appointment with an ophthalmologist or optometrist, who will make a professional diagnosis and suggest you an adequate solution to correct your vision.