Results 91 to 100 of about 5,882,083 (201)

Online IOL Power Calculators

Abstract This chapter aims to provide readers with the latest online intraocular (IOL) power calculators developed by individual ophthalmologists and researchers to improve the refractive outcomes of cataract surgery. Means to access them and utilize a newer website that congregates them all on the website will be presented.
Kenneth J. Hoffer, Filomena Ribeiro, Giacomo Savini   +2 more
openaire   +1 more source

Differences between simulated keratometry and total corneal power in eyes with keratoconus and a formula to improve IOL power calculation results

PURPOSE: To compare simulated keratometry (SimK) and total corneal power (TCP) in keratoconic eyes, to determine whether the differences are systematic and predictable and to evaluate an adjusted TCP-based formula for intraocular lens (IOL) power ...
Hoffer K. J., Dias J. M., Ferrise M., Savini G., Coutinho C. P., Ribeiro F. J., Mazzotta C., Schiano-Lomoriello D.   +7 more
core   +1 more source

Predicting the refractive outcome and accuracy of IOL power calculation after phacoemulsification using the SRK/T formula with ultrasound biometry in medium axial lengths

, 2017
Yunus Karabela,1 Mustafa Eliacik,2 Mehmet Selim Kocabora,3 Sevil Karaman Erdur,3 Hakan Baybora4 1Department of Ophthalmology, Istanbul Medipol University, Esenler Hospital, Esenler, 2Department of Ophthalmology, Istanbul Medipol University, Kadikoy ...
Erdur Sk, Karabela Y, Kocabora MS, Eliacik M, Baybora H   +4 more
core  

New theoretical matrix formula for intraocular lens calculation using the optimal bending factor [PDF]

, 1993
By applying Gaussian optics we propose a new matrix formula model for intraocular lens (IOL) calculation that yields not only IOL optical power for a particular eye but also an evaluation of the bending factor of different IOL optical designs.
Beléndez, Augusto, Fimia Gil, Antonio, Alió y Sanz, Jorge L., Pascual, Inmaculada   +3 more
core   +1 more source

Accuracy of Modern and Traditional Intraocular Lens Power Calculation Formulas in Pediatric Cataract Surgery [PDF]

Hany Ahmed Helaly,* Mohamed Hassan Said,* Osama Ramadan Elnaggar,* Mohamed Hassan Elkhawaga* Ophthalmology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt*These authors contributed equally to this ...
Elnaggar OR, Said MH, Elkhawaga MH, Helaly HA   +3 more
core  

Accuracy of recent intraocular lens power calculation methods in post-myopic LASIK eyes

Scientific Reports
This retrospective study compared postoperative prediction errors of recent formulas using standard- or total keratometry (K or TK) for intraocular lens (IOL) power calculation in post-myopic LASIK patients.
Kate Gettinger, Sachiko Masui, Miki Omoto, Hidemasa Torii, Erisa Yotsukura, Yasuyo Nishi, Masahiko Ayaki, Ken Hayashi, Kazuno Negishi   +8 more
doaj   +1 more source

IOL Power Calculation in Keratoconus

Abstract The changes in the keratoconic cornea affect multiple aspects of IOL power calculation. The challenges with keratoconus are the corneal power measurement issues, the IOL formula calculation errors, and the difficulty in refraction. The different formulas used in keratoconus cases are compared.
openaire   +1 more source

Orbscan II and double-K method for IOL calculation after refractive surgery

, 2012
Precise IOL calculation in post-refractive surgery patients is still a challenge for the cataract surgeon. the purpose of this study is to test whether adding Orbscan II values into the double-K method improves IOL calculation in this group of patients.A
Arce, Carlos G. [UNIFESP], Severo, Norton, Kwitko, Sergio, Rymer, Samuel, Marinho, Diane R.   +4 more
core   +1 more source

Impact of Single Constant Optimization on the Precision of IOL Power Calculation. [PDF]

Transl Vis Sci Technol, 2023
Gatinel D, Debellemanière G, Saad A, Wallerstein A, Gauvin M, Rampat R, Malet J.   +6 more
europepmc   +1 more source

IOL Power Calculation in Keratoplasty

Abstract Accurate IOL power calculation in eyes undergoing simultaneous cataract surgery and corneal transplantation is not possible. Most difficulties arise as a consequence of the unpredictable changes in the anterior and posterior corneal curvature and in their ratio.
openaire   +1 more source