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Related Concept Videos

Accessory Structures of the Eye01:17

Accessory Structures of the Eye

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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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Related Experiment Video

Updated: Nov 17, 2025

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
05:46

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity

Published on: September 20, 2024

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Optical Device to Improve Eyelid Surgery.

Maria Govorkova1, Rona Z Silkiss2

  • 1San Jose Medical Group, San Jose, CA, USA.

Surgical Innovation
|February 18, 2021
PubMed
Summary

A new device uses a camera and projector to create precise, symmetrical markings for blepharoplasty surgery, improving accuracy over traditional methods.

Area of Science:

  • Ophthalmology
  • Plastic Surgery
  • Medical Device Design

Background:

  • Surgical symmetry in bilateral blepharoplasty is challenging.
  • Current methods rely on subjective measurements, leading to errors and delays.
  • A need exists for accurate, cost-effective surgical guides.

Purpose of the Study:

  • To design and evaluate a novel device for accurate blepharoplasty markings.
  • To enhance precision and reduce errors in surgical planning.

Main Methods:

  • A camera-projector device was developed to create mirrored projections for guided marking.
  • The device was tested on a mannequin and eleven human volunteers.
  • Computer analysis compared the accuracy of guided versus unguided markings.
Keywords:
image-guided surgeryplastic surgerythe business of surgery

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Main Results:

  • Guided blepharoplasty markings demonstrated superior accuracy compared to unguided methods.
  • The device successfully projected reference features for precise alignment.

Conclusions:

  • The proposed device offers potential for improved precision in blepharoplasty.
  • It may reduce surgeon time and effort, enhancing patient outcomes.
  • Further modifications are planned for clinical application.