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Posters
January 2004

 

Comfort response to rigid and soft hyper transmissible contact lenses used for continuous wear

Philip B Morgan PhD MCOptom FAAO, Carole Maldonado-Codina PhD MCOptom FAAO, Nathan Efron PhD DSc MCOptom FAAO

 

Purpose:

To assess subjective comfort during the first three months of continuous wear of hyper transmissible soft and rigid contact lenses.

Method:
One hundred subjects (50 experienced wearers and 50 neophytes) were fitted with either the Focus Night & Day lens (CIBA Vision) or the Z a lens (Menicon). Comfort was monitored at regular intervals using a vertical analogue comfort scale.
Results:

Good comfort scores (generally indicating 'very comfortable' lenses) were recorded for the two soft lens groups (experienced and neophytes) and the experienced rigid lens group; these scores remained approximately constant throughout the study. Comfort reported by neophyte rigid lens wearers was initially recorded as being between 'slightly uncomfortable' and 'comfortable'; however, after one week of daily wear and one night of overnight wear, the mean comfort score of this group reached a level which was similar to that recorded by subjects in the other three study groups.

Conclusions:

The comfort data presented in this study can be used by clinicians to anticipate the subjective response of both new and existing lens wearers to new generation hyper transmissible soft and rigid contact lenses.

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