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Bifocal Lenses

Sometimes our vision fails us at two or even three distinct distances, especially as we age. Bifocal lenses—lenses with two distinct viewing areas—have traditionally been a reliable solution to such a dilemma. (A lens with three distinct viewing areas is called a trifocal.)
 
By distinct, we mean there are noticeable lines separating the two different fields of vision within a bifocal lens surface. A slight adjustment to the angle of the head allows wearers to choose which lens area to look through based on the distance of the object they’re trying to see.
 
A farsighted person who also has trouble reading may be prescribed a pair of bifocal reading glasses, for example. The upper section of the lens would correct difficulties seeing objects at distance, and the lower section would assist in reading. (Bifocal glasses date back to the days of Benjamin Franklin!)
 
While wearers quickly adjust to the line separating the multiple vision fields, it is a noticeable distraction within the lens itself. This line can be eliminated using a newer lens technology called progressive lenses.
 
Progressive lenses incorporate two, three, or more fields of vision within a single lens without noticeable lens lines. Bifocal, trifocal and progressive lenses are all considered “multi-focal” lenses—lenses that provide correction to multiple vision problems.
 
Special thanks to the EyeGlass Guide, for informational material that aided in the creation of this website. Visit the EyeGlass Guide today! 

Based on recent guidelines from the CDC (Centers for Disease Control) and the AOA (American Optometric Association) and the North Carolina Board of Optometry, Triangle Family Eye Care will close starting Monday, March 30th.

We will be open for glasses and contact lens pick up only the week of March 22nd. Doctor Prajapati will not be seeing any patients unless it’s an ocular emergency.

Ocular emergencies may be any of the following symptoms: redness/eye pain, sudden loss of vision (central or peripheral), trauma to the eye, contact lens-related eye pain.

We will keep you posted as to when our office will reopen as this is a fluid situation.

Thank you, Dr. Prajapati and staff at TFEC