Material Information

Dehydration Rate of Silicone Hydrogel Based Contact Lenses
Schaefer, Christine
Place of Publication:
Gainesville, Fla
University of Florida
Publication Date:
Physical Description:
Undergraduate Honors Thesis


Subjects / Keywords:
Contact lenses ( jstor )
Dehydration ( jstor )
Glycols ( jstor )
Polyethylenes ( jstor )
Water loss ( jstor )
Weight loss ( jstor )
Contact lenses
contact lens solution
silicone hydrogel


When considering the comfort of contact lenses, there are many properties, processes and aspects to consider. One of the most important aspects as of the lenses is the dehydration of lens through out the day. As the lenses are worn through the day being exposed to elements of life, the lenses dry out causing discomfort for the user. ¬¬¬ A simple way to decrease dehydration of the lenses is to alter the solution in which the contacts soak in overnight to rehydrate after a days worth of wearing. Throughout this experiment 5 wt% of 8,000 kDa and 23,000 kDa Polyethylene glycol were added to commercially bought Opti-Free Solution and soaked for an extended amount of time. The weight loss of the lenses were measured over time to develop a dehydration rate. The results showed that Ciba lenses, independent of the solution seem to have a highest percent loss, while pure packing solution has the lowest percent loss of water.

Record Information

Source Institution:
University of Florida Institutional Repository
Holding Location:
University of Florida
Rights Management:
All rights reserved by the source institution and holding location.