Douglas Koch

Another method of post-LASIK corneal power estimation is one that was originally described by the well-known refractive surgeon Robert Maloney and subsequently modified by Doug Koch and Li Wang.
...
The advantage of this method is that it requires no historical data and has been reported to have a low variance when used with either the Holliday 2 formula or a 2-variable formula combined with an Aramberri double K method correction nomogram published by Koch and Wang.2

Using this technique, the central corneal power is estimated by placing the cursor at the exact center of the Axial Map of the Zeiss Humphrey Atlas topographer.
...
Another method of post-LASIK corneal power estimation was originated by Doug Koch and Li Wang and is based on determining the central power of the cornea using either the Zeiss Humphrey Atlas topographer or the adjusted effective refractive power (EffRPadj) of the Holladay Diagnostic Summary of the EyeSys Corneal Analysis System.
...
2. Koch, D., Wang I. Calculating IOL power in eyes that have had refractive surgery.J Cataract Refract Surg 2003 29(11) 2039-2042.

3. Holladay JT.Consultations in refractive surgery.Refract Corneal Surg 1989; 5:203

4. Hoffer KJ.Intraocular lens power calculation for eyes after refractive keratotomy.J Refract Surg 1995; 11:490-493

5. Aramberri J. Intraocular lens power calculation after corneal refractive surgery: Double K method.J Cataract Refract Surg 2003; 29: 2063-2068.
...
Douglas D. Koch, MD, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas.

9. Wang L, Booth MA, Koch DD.Comparison of intraocular lens power calculations methods in eyes that have undergone LASIK.Ophthalmology 2004 111(10) 1825-1831.

10. Masket S, Masket SE.Simple regression formula for intraocular lens power adjustment in eyes requiring cataract surgery after excimer laser photoablation.J Cataract Refract Surg 2006 32 (3) 430 - 434.

11. Personal communication, April, 2006.

Another method of post-LASIK corneal power estimation is one that was originally described by the well-known refractive surgeon Robert Maloney and subsequently modified by Doug Koch and Li Wang.
...
The advantage of this method is that it requires no historical data and has been reported to have a low variance when used with either the Holliday 2 formula or a 2-variable formula combined with an Aramberri double K method correction nomogram published by Koch and Wang.2

Using this technique, the central corneal power is estimated by placing the cursor at the exact center of the Axial Map of the Zeiss Humphrey Atlas topographer.
...
Another method of post-LASIK corneal power estimation was originated by Doug Koch and Li Wang and is based on determining the central power of the cornea using either the Zeiss Humphrey Atlas topographer or the adjusted effective refractive power (EffRPadj) of the Holladay Diagnostic Summary of the EyeSys Corneal Analysis System.
...
2. Koch, D., Wang I. Calculating IOL power in eyes that have had refractive surgery.J Cataract Refract Surg 2003 29(11) 2039-2042.

3. Holladay JT.Consultations in refractive surgery.Refract Corneal Surg 1989; 5:203

4. Hoffer KJ.Intraocular lens power calculation for eyes after refractive keratotomy.J Refract Surg 1995; 11:490-493

5. Aramberri J. Intraocular lens power calculation after corneal refractive surgery: Double K method.J Cataract Refract Surg 2003; 29: 2063-2068.
...
Douglas D. Koch, MD, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas.

9. Wang L, Booth MA, Koch DD.Comparison of intraocular lens power calculations methods in eyes that have undergone LASIK.Ophthalmology 2004 111(10) 1825-1831.

10. Masket S, Masket SE.Simple regression formula for intraocular lens power adjustment in eyes requiring cataract surgery after excimer laser photoablation.J Cataract Refract Surg 2006 32 (3) 430 - 434.

11. Personal communication, April, 2006.

With Douglas Koch, MD and Li Wang, MD, PhD, developed the software for the first on-line post-keratorefractive IOL power calculator for the membership of the American Society of Cataract and Refractive Surgery, May, 2007.