What is Trifocal?
Eye lenses are designed to help improve vision. They offer relief for people with presbyopia or those experiencing difficulty in seeing near objects.
One type of eyeglass lenses is the bifocal which carries two lens powers – one for seeing from a distance and the other for seeing near objects. Trifocal, on the other hand, means three lens powers, giving wearers e fuller range of vision.
What are Trifocal Lenses?
Trifocal lenses carry with them an additional ribbon-shaped lens segment located just above the near segment.
This intermediate segment gives 50 percent of the magnifying power of the near segment to facilitate near-object tasks such as reading and computer use. Trifocals are especially helpful for people ages 50 and above who already experience difficulty reading at arm’s length.
Some people feel reluctant to wear trifocals because they worry of discomfort. Those who have tried wearing these lenses, on the other hand, are usually happy with the added range of vision.
What should you know when Trifocal lenses?
Trifocal are fitted a bit higher than bifocals. The top line of the intermediate segment is aligned with the lower margin of a person’s pupil. The optician can however position your trifocal segments according to your individual needs and preferences.
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