Are TruFocals An Option for Presbyopia?

August 13, 2009

Another type of glasses for people with presbyopia has been developed and is now commercially available.  TruFocals glasses feature a slider located above the nose bridge of the glasses; this slider can be used to change the focal point of the lenses in real time.

These glasses use a conventional lens that is paired with a transparent flexible lens; the flexible lens is closer to the eye.  In between both lenses is a pocket that contains a small amount of clear fluid. When the glasses are adjusted, the fluid moves which alters the shape of the flexible lens and changes the correction of the glasses.  This provides a focal range that the wearer can adjust as needed.

This is an intriguing concept and it doesn’t appear that the lenses are very heavy. I would be curious to learn more about the optics of these glasses and what the range of correction is.

Read the article.




Jump down to form below to submit your own comments

Comments are closed.