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Related Experiment Video

Updated: Jun 8, 2026

Iris Fixation via External Pentagram Suturing

Iris Fixation via External Pentagram Suturing

Published on: May 5, 2022

Pinguecula and contact lenses.

T Mimura¹, T Usui, M Mori

¹Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan. mimurat-tky@umin.ac.jp

Eye (London, England)

|September 11, 2010

Summary

Contact lens wear is linked to increased pinguecula severity, especially with hard contact lenses. Age also correlates with pinguecula grade in both contact lens wearers and non-wearers.

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Published on: April 6, 2016

Area of Science:

Ophthalmology
Ocular surface disease
Contact lens related complications

Background:

Pinguecula is a common degenerative condition of the conjunctiva.
Previous research has not extensively evaluated pinguecula severity in contact lens wearers.

Purpose of the Study:

To investigate the association between age and pinguecula incidence and severity in contact lens (CL) wearers.
To compare pinguecula severity between CL wearers and non-wearers.

Main Methods:

A cross-sectional study involving 600 CL wearers (hard CLs and soft CLs) and 579 non-wearers, aged 10-60 years.
Data collected included age, gender, medical and ocular history, and pinguecula grade at nasal and temporal locations.

Main Results:

Pinguecula grade increased with age in both CL wearers and non-wearers.
CL wearers showed higher temporal pinguecula grades compared to non-wearers (P=0.01907).
Hard CL wearers had significantly higher pinguecula grades than soft CL wearers at both nasal and temporal conjunctiva (P<0.00001).

Conclusions:

Contact lens use is identified as a significant risk factor for developing pinguecula.
This study provides novel insights into pinguecula severity in a large cohort of contact lens users.