Age-related changes in corneal astigmatism

X Shao, KJ Zhou, AP Pan, XY Cheng… - Journal of Refractive …, 2017 - journals.healio.com
… principle and measure total corneal astigmatism by a ray tracing technique that took …
tomographer was marked “OK” (valid data of 95% or more). The exclusion criteria were as follows: …

Ten Key Points to Optimize Surgical Correction of Astigmatism

JL Febbraro, DD Koch, HN Khan - 2018 - Springer
… of corneal astigmatism need to be … marking techniques. Montes de Oca and colleagues
reported a mean error of less than 3 for both manual and an automated marking technique, with …

Corneal diameter as a factor influencing corneal astigmatism after cataract surgery

S Theodoulidou, I Asproudis, C Kalogeropoulos… - Cornea, 2016 - journals.lww.com
… for the right eye and superonasal for the left eye, clear corneal … vector analysis using the
Alpins method. We noted all cases, … of tunnel and sideport incisions were marked at the slit lamp, …

Vector analysis of corneal astigmatism after combined femtosecond-assisted phacoemulsification and arcuate keratotomy

TCY Chan, GPM Cheng, Z Wang, CCY Tham… - American Journal of …, 2015 - Elsevier
… A single reference point at the temporal limbus was marked … limbus were also marked to
help identify the cornea center. … astigmatism using the Alpins method, both methods showed …

Astigmatism analysis: the spectrum of approaches

DD Koch - Journal of Cataract & Refractive Surgery, 2006 - journals.lww.com
… not measured intraoperatively) and marking of patients' eyes at … the steep corneal meridian
reduces corneal astigmatism. As … of methods for analyzing corneal astigmatism induced by …

Toric lens implantation in cataract surgery: automated versus manual horizontal axis marking, analysis of 50 cases

M Raucau, H El Chehab, E Agard, C Lagenaite… - Journal Français d' …, 2018 - Elsevier
… surgery, with corneal astigmatism equal to … eye is its own control, the two techniques, manual
and automated (based on conjunctival registration), differ only by a mean of 4.7 for marking

[PDF][PDF] Astigmatism control

LD Nichamin - Ophthalmol Clin North Am, 2006 - ophed.net
technique used today to reduce pre-existing astigmatism at … shorter and more central corneal
astigmatic incisions, and … (RK) marker may be used to place ink marks upon the cornea to …

Comparison of methodologies using estimated or measured values of total corneal astigmatism for toric intraocular lens power calculation

TB Ferreira, P Ribeiro, FJ Ribeiro… - Journal of Refractive …, 2017 - journals.healio.com
… the corneal marks with the reference marks in the IOL. … of the posterior corneal surface in
total corneal astigmatism may yield … compared methods that estimate total corneal astigmatism

Comparison of different methods of correcting astigmatism in cataract surgery

M Icoz, B Yildirim, SG Gurturk Icoz - Clinical and Experimental …, 2024 - Taylor & Francis
… The axis was marked in the light of the biomicroscopy in all patients preoperatively. The …
In the presence of preoperative corneal astigmatism corneal incisions such as CCI, paired …

Effect of paired opposite clear corneal incisions on with-the-rule versus against-the-rule astigmatism

PJ Chiam - Cornea, 2015 - journals.lww.com
… Surgical Technique The 6 o'clock position on the cornea was marked under topical anesthetic
on the slit-lamp preoperatively. A sterile marker pen was used to stain the tip of the needle …