The cornea is a transparent, avascular, semi-spherical tissue located in the front part of the eye. It plays a crucial role in the refraction and transmission of light to the retina. Various conditions can alter its morphology, leading to incorrect refraction of light and decreasing visual quality in patients. Corneal topographers, devices based on imaging technology, are used to evaluate corneal geometry. This study compares three corneal topographers (Pentacam, Sirius, and Galilei), each manufactured by a different company, but based all three devices on the same principle of image acquisition, the so-called Scheimpflug photography principle. Two healthy corneas from one patient are examined, and virtual corneal models are generated using Delaunay mesh triangulation to facilitate geometric calculations of the cornea (anterior area, posterior area, and volume). The objective is to compare the six geometric models of the two corneas obtained from data provided by the three topographers, to determine if the data obtained are interchangeable across the three technologies. The interoperability of clinical data in clinical practice may aid in the clinical diagnosis of corneal diseases.

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Comparative Study Between Patient-Specific 3D Corneal Geometric Models Generated from Pentacam, Sirius, and Galilei Topographers

  • José González-Cabrero,
  • Carmelo Gómez-Garcia,
  • Lucas Díaz-Moreno,
  • Jose S. Velázquez,
  • Manuel Paredes,
  • Francisco Cavas

摘要

The cornea is a transparent, avascular, semi-spherical tissue located in the front part of the eye. It plays a crucial role in the refraction and transmission of light to the retina. Various conditions can alter its morphology, leading to incorrect refraction of light and decreasing visual quality in patients. Corneal topographers, devices based on imaging technology, are used to evaluate corneal geometry. This study compares three corneal topographers (Pentacam, Sirius, and Galilei), each manufactured by a different company, but based all three devices on the same principle of image acquisition, the so-called Scheimpflug photography principle. Two healthy corneas from one patient are examined, and virtual corneal models are generated using Delaunay mesh triangulation to facilitate geometric calculations of the cornea (anterior area, posterior area, and volume). The objective is to compare the six geometric models of the two corneas obtained from data provided by the three topographers, to determine if the data obtained are interchangeable across the three technologies. The interoperability of clinical data in clinical practice may aid in the clinical diagnosis of corneal diseases.