No-history method of intraocular lens power calculation for cataract surgery after myopic laser in situ keratomileusis

Abstract

The no-history method is a viable alternative for IOL power calculation after myopic LASIK when the refractive surgery data are not available.

Comparison of the accuracy of intraocular lens power calculations for cataract surgery in eyes after phototherapeutic keratectomy

“…The Shammas-PL formula is a non-history method with regression analysis. The average corneal power is replaced by the corrected mean corneal power [5].…”

“…However, except for the specific PTK profile, these error sources are almost the same as those that occur in eyes after myopic refractive surgery. Therefore, IOL power calculation methods for eyes after myopic refractive surgery such as laser in situ keratomileusis, and laser-assisted subepithelial keratectomy [3][4][5][6][7][8][9][10][11][12][13][14][15][16] can be used to calculate the IOL powers after PTK.…”

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

“…In recent years, many formulas have been described by several authors always trying to improve IOL power calculation after refractive surgery, such as Borasio [6], Shammas [15,20], Haigis [21], and Masket [22]. They all showed good results, but their series did not include such a large number of patients submitted to radial keratotomy, and both myopic and hyperopic laser procedures.…”

Lasers in Ophthalmology

“…Laser therapy is used in cataract too (Baratz et al, 2001;Çinal et al, 2007;Gilbert, 2011;Hille et al, 2001;Kanellopoulos & Group, 2001;Mahdavi, 2011;Shammas & Shammas, 2007;Verge´s & Llevat, 2003). The cataract is a disease that develops in the crystalline lens of an eye.…”

“…In LASEK which is the laser epithelial keratomileusis, the cornea's surface layer is treated with alcohol and peeled back to reshape the layer underneath. LASIK prevents most problems of postoperative pain, slow rehabilitation and corneal haze (Kanellopoulos & Group, 2001;Shammas & Shammas, 2007).…”