High-resolution digital retroillumination imaging of the posterior lens capsule after cataract surgery

J Cataract Refract Surg. 1997 Dec;23(10):1521-7. doi: 10.1016/s0886-3350(97)80023-5.


Purpose: To develop a system for high-resolution imaging of the posterior lens capsule after intraocular lens surgery for objective assessment of posterior capsule opacification (PCO).

Setting: Department of Cataract and Refractive Surgery, St. Thomas' Hospital, London, United Kingdom.

Methods: A system was developed that uses coaxial illumination and imaging based on Zeiss components with a digital camera directly linked to a computer for online image verification and image analysis.

Results: The system produced high-resolution digital images with even background illumination of sufficient quality to demonstrate progressive lens epithelial cell changes that are amenable to computer image analysis.

Conclusion: This system produced excellent images for objective documentation and quantitative measurement of PCO.

MeSH terms

  • Cataract / diagnosis*
  • Cataract / etiology
  • Cataract Extraction / adverse effects*
  • Diagnostic Imaging / methods*
  • Epithelial Cells / pathology*
  • Humans
  • Image Processing, Computer-Assisted*
  • Lens Capsule, Crystalline / pathology*
  • Lenses, Intraocular
  • Postoperative Complications / diagnosis*