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Modified ERG-Jet™ contact lens electrodes for use in infants and toddlers—update

  • Scott E. Brodie
Technical Note
  • 4 Downloads

Abstract

Purpose

To describe recent changes in the dimensions of the ERG-jet contact lens electrode, and to suggest corresponding changes in the dimensions of cylindrical stents to facilitate the use of ERG-jet contact lens electrodes in infants and small children.

Methods

Upon the observation that existing cylindrical stents no longer fit newly purchased ERG-jet contact lenses, the spacings between the “bumps” on the front surface of old and new electrodes were measured with calipers, and prototype stents were newly machined from acrylic plastic.

Results

Cylindrical stents with an outside diameter of 0.277 inches (about 7.04 mm) were found to fit snugly between the front surface “bumps” of new ERG-jet contact lens electrodes.

Conclusions

Recent modifications in the injection molds for ERG-jet contact lens electrodes have resulted in an increase in the space between the “bumps” on the front surface of the electrodes, necessitating a corresponding increase in the outside diameter of cylindrical stents intended to fit snugly between the “bumps” for ease of insertion and prevention of lid closure.

Keywords

ERG ERG electrodes ERG-Jet™ contact lens electrodes Cylindrical stents 

Notes

Compliance with ethical standards

Conflict of interest

The author declares that he has no conflict of interest.

Statement of human rights

This article does not contain any studies with human participants performed by any of the authors.

Statement on the welfare of animals

This article does not contain any studies with animals performed by any of the authors.

Informed consent

As this article does not contain any studies with human participants performed directly by any of the authors, the concept of informed consent is not applicable.

Reference

  1. 1.
    Brodie SE, Breton ME (1996) Modified ERG-jet contact lens electrodes for use in infants and toddlers. Doc Ophthalmol 91:141–146CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Ophthalmology, NYU Eye CenterNYU School of MedicineNew YorkUSA

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