What question did this study set out to answer?

To investigate how the peripheral curve of soft contact lenses influences oxygen delivery to the cornea through the tear pump mechanism.

March 21, 2026

Peripheral Curve Design and the Tear Pump Mechanism of Soft Contact Lenses

Puntos clave

To investigate how the peripheral curve of soft contact lenses influences oxygen delivery to the cornea through the tear pump mechanism.
Fitted 18 patients with spherical DuraSoft lenses
Compared lenses with and without peripheral curves
Monitored physiological response via central corneal thickness changes
No adverse effects on corneal physiology found due to absence of peripheral curve
Pachometric measurements showed stable central corneal thickness

Resumen

Abstract The role of the peripheral curve of a soft lens in the supply of oxygen to the cornea via the tear pump mechanism is considered. A group of 18 patients was optimally fitted with spherical DuraSoft lenses with and without peripheral curves; the absence of the peripheral curve was not found to affect adversely the physiological response of the cornea as determined by pachometric changes in central corneal thickness.

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Cite This Study

Tomlinson et al. (Sun,) studied this question.

synapsesocial.com/papers/69be36516e48c4981c6752f9 https://doi.org/https://doi.org/10.1002/j.2330-9512.1980.tb02800.x

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