New method of quantifying corneal topographic astigmatism that corresponds with manifest refractive cylinder

@article{Alpins2012NewMO,
  title={New method of quantifying corneal topographic astigmatism that corresponds with manifest refractive cylinder},
  author={Noel Alpins and James K. Y. Ong and George Stamatelatos},
  journal={Journal of Cataract and Refractive Surgery},
  year={2012},
  volume={38},
  pages={1978–1988}
}
Corneal topographic astigmatism (CorT) to quantify total corneal astigmatism.
TLDR
Thecorneal topographic astigmatism based on total corneal power measurements corresponds better, both in variability and closeness, with manifest refractive cylinder than the CorT based on anterior corneAL power measurements.
Corneal Topographic Astigmatism Based on Total Corneal Power Data (CorT Total): A Benchmark for Total Corneal Astigmatism.
TLDR
The CorT Total is a reliable benchmark measure that can be used to assess how well other measures of total corneal astigmatism correspond with the manifest refractive cylinder.
Vector Planning and Corneal Topographic Astigmatism
The concept of planning refractive laser treatments using parameters other than manifest or wavefront refraction was somewhat of a novelty until topography-guided treatments came to the forefront
Anterior, Posterior, and Non-Keratometric Contributions to Refractive Astigmatism in Pseudophakes.
TLDR
ORA was non-zero and not entirely explained by the cornea, especially in those with WTR ACA and with-the-rule ACA, and non-corneal contributions were significant,especially in eyes with W TR ACA.
Surgically Induced Astigmatism Assessment
The article “Surgically Induced Astigmatism Assessment: Comparison Between Three Corneal Measuring Devices” by Ofir et al.1 was effective in demonstrating equivalence between three anterior corneal
LASIK for Spherical Refractive Myopia: Effect of Topographic Astigmatism (Ocular Residual Astigmatism, ORA) on Refractive Outcome
TLDR
A preoperative cornealAstigmatism of ≥0.9 D could (partially) be taken into account in the LASIK design, even if the subjective refractive astigmatism is neutral.
Correlation of major components of ocular astigmatism in myopic patients.
Assessing Total Keratometry Astigmatism, Simulated Keratometry, and Total Corneal Topographic Astigmatism Against Manifest Refractive Cylinder.
TLDR
Total Keratometry astigmatism correlates as well with manifest refractive cylinder as simulated keratometryAstigmatism from the same device and CorT Total from a Scheimpflug tomographer support the use of Total Keratometers over simulated ker atometry in the planning of astigmatist surgery when corneal values are required.
Evaluation of the diagnostic ability of vector parameters characterizing the corneal astigmatism and regularity in clinical and subclinical keratoconus.
Pseudolentogenic astigmatic effect of multifocal intraocular lenses: non-corneal ocular residual astigmatism (N-CORA) as a new parameter in astigmatic change analysis
TLDR
The similarity of N- CORA between both MIOL types shows that both diffractive and refractive asymmetric MIOLs with plate haptics have the same pseudolentogenic astigmatic effect which could be presented in terms of the newly introduced parameter N-CORA.
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