Intraocular lens power calculation following laser refractive surgery

Table 1 List of known post laser refractive formulas

History methods (plus change in manifest refraction)	Change in manifest refraction methods	No prior data	Others
Camellin*[31]#	Adjusted ACCP [62]°	Actual K (a + p) [59]	CAS-OCT
Clinical History [27]°#	Adjusted Atlas 9000 (4 mm Zone) [34]°	Awwad [61]	Consensus-K [63]
Corneal Bypass [42]°	Adjusted Atlas Ring Values [45]°	BESSt [55]#	Double -K^{^} [3]
Feiz-Mannis [64]°#	Adjusted EffRP [35]°	Canovas Ray Tracing- Aberration [65]	Corneal topography
Jarade Index of Refraction*[11]#	Barrett True-K [66]	Ferrara [67]#	Adjusted Flat K
Seitz-Speicher*[31]	Camellin-Calossi [31]	Feiz Myopic [64]	Atlas 0-3
	Chokshi SE [37]	Feiz Hyperopic [64]	Galliei Sim K
	Diehl-Miller [38]	Haigis-L [68]°#	Orbscan Flat Axis
	Diehl-Date-Miller [39]	Hamed [35]	Orbscan Mean and Total Mean Power
	Khalil Regression [40]	Hard Contact Lens [69]#	Orbscan 1.5 mm, 2.00 mm and 2.50 mm Mean Power
	Latkany [41]#	Ianchulev [46]#	Orbscan 4.0 mm Total Optical Power
	Masket [36]°#	Galilei [70]°	Orbscan 5.0 mm Total Axial Power
	Modified Masket [71]°	Geggel Ratio [60]	Pentacam True Net Power (TNP)
	Rosa [72]	Kim [47]	Pentacam Central TNP
	Srivannaboon	Leccisotti [49]	Pentacam 4.5 mm Equiv K
	Stakheev and Balashevich [73]	Mackool [48]#	ORange Intraoperative Wavefront [52]
	Walter [42]#	Maloney [34]#	Ray Tracing (OKULIX Software) [74]
		Maloney-Koch-Wang [34]°
		Razmjoo Regression [75]
		Ronje [76]#
		Saiki (A-P) [77]
		Saiki (C-P) [56]
		Seitz-Speicher-Savini [31]
		Savini-Barboni-Zannini [78]#
		Shammas [44]°
		Wang [34]

^Used in conjunction with other methods to derive IOL power.
*May be used without clinical history information.
°Incorporated into the American Society of Cataract & Refractive Surgeons Post Refractive Calculator.
#Available in the Hoffer-Savini LASIK IOL Power Tool.
Note: references not provided for IOL formulas based on topographic measurement variations.

ISSN: 2326-0254