Corneal coma and trefoil changes associated with incision location in cataract surgery
In Seok Song1, Jong Hoon Park1, Jin Hyoung Park1
1From the Department of Ophthalmology (Song), Hanyang University College of Medicine, Hanyang University Medical Center, the Department of Ophthalmology (Jong H. Park, Jin H. Park, J.Y. Kim, M.J. Kim, Tchah), University of Ulsan College of Medicine, Asan Medical Center, and the Department of Ophthalmology (Yoon), Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea.
Purpose:
To investigate changes in corneal higher-order aberrations (HOAs) associated with the incision location in cataract surgery.
Setting:
Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Design:
Observational case series.
Methods:
Eyes were divided into 3 groups according to the different axes of incision location: superior, temporal, and nasal. Preoperative and 1-month postoperative corneal coma, trefoil, and spherical aberrations were compared.
Results:
The study evaluated 119 eyes that had uneventful cataract surgery with a 2.2 mm limbal incision. The superior incision group showed significant changes in the vertical coma (amount of change: -0.119 μm ± 0.153 [SD]; P < .001) and vertical trefoil (amount of change: 0.185 ± 0.260 μm, P = .001). The nasal incision group showed a significant change in oblique trefoil (amount of change: 0.176 ± 0.207 μm; P < .001). The temporal incision group did not show significant changes in HOAs.
Conclusion:
The superior incision in 2.2 mm phacoemulsification cataract surgery caused a change in the corneal vertical coma in a negative direction. Corneal trefoil changes were dependent on the incision location.
Financial Disclosure:
No author has a financial or proprietary interest in any material or method mentioned.
More Related Videos
07:29Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
Published on: November 12, 2015
06:19Author Spotlight: A Novel Protocol for Intracameral Injections to Enhance Precision in Rodent Ophthalmology
Published on: May 31, 2024