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. 2008 Jan;15(1):34-6.
doi: 10.4103/0974-9233.53373.

Intraocular lens power calculation after phototherapeutic keratectomy: case report and a new method

Omar Kirat  1
Affiliations

Intraocular lens power calculation after phototherapeutic keratectomy: case report and a new method

Omar Kirat. Middle East Afr J Ophthalmol. 2008 Jan.

Abstract

To report a case of cataract extraction and intraocular lens (IOL) implantation after phototherapeutic keratectomy (PTK). The IOL power was calculated using the single-K and the double-K SRK/T formula, as well as the Haigis formula after modifying the post PTK corneal power using methods described for corneal power measurements after myopic excimer laser treatment (photorefractive keratectomy (PRK) and LASIK). A new method for IOL power calculation after PTK is introduced.

Keywords: IOL power calculation; PTK; formula; keratometry; refractive surprise.

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