Related Experiment Videos
Intraoperative crystallization on the intraocular lens surface
R J Olson1, K D Caldwell, A S Crandall
1Department of Ophthalmology, University of Utah Health Sciences Center, Salt Lake City, USA.
American Journal of Ophthalmology
|September 4, 1998
Summary
Intraocular lens (IOL) crystallization during cataract surgery is rare, occurring in 0.07% of cases. This phenomenon may be linked to calcium in the intraocular lens (IOL) and specific solutions used during surgery.
Area of Science:
- Ophthalmology
- Materials Science
Background:
- Intraoperative crystallization on intraocular lenses (IOLs) is an uncommon complication during cataract surgery.
- Understanding the causes and contributing factors is crucial for preventing and managing this issue.
Purpose of the Study:
- To investigate the occurrence of intraoperative crystallization on the surface of intraocular lenses (IOLs).
- To identify potential correlations between crystallization and surgical materials or solutions.
- To analyze the elemental composition of the crystalline deposits.
Main Methods:
- A survey was distributed to ophthalmologists in five western US states regarding IOL crystallization.
- Laboratory studies analyzed the elemental composition of crystalline samples and precipitation in various solutions.
- Clinical observations documented and followed cases of IOL crystallization in patients.
Main Results:
- A survey of 181 ophthalmologists reported 22 cases (0.07%) of intraoperative IOL crystallization.
- A statistically significant correlation was found between crystallization and the use of BSS Plus and silicone IOLs.
- Elemental analysis identified calcium as the primary cation in the crystalline deposits.
Conclusions:
- Intraoperative IOL crystallization is a rare event, potentially associated with calcium-related osmotic gradients.
- Management involves IOL exchange in the operating room after thorough irrigation and viscoelastic use.