- Harvard & MIT (MD, magna cum laude);
PhD (laser physics) - Over 55,000 LASIK and cataract procedures (including on over 4,000 doctors)
- Introduced bladeless all-laser LASIK to the state
- Implanted the state's first new premium lens for cataract surgery
- Was the first surgeon in the US to perform a new Intacs surgery to treat keratoconus
- Helped patients from 40 states and 55 countries
- International referral center for cataract surgery and treating LASIK complications
- Read Dr. Wang's book: LASIK Vision Correction
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Why did you decide to have LASIK? Why did you choose Dr. Wang? How has your life changed since your LASIK procedure? What is your advice for people considering LASIK? - Click to see more
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IOL Calculation
Wang Vision Cataract and LASIK Center, Nashville, Tennessee
Wang Vision Cataract & LASIK Center is an international referral center, for corneal topography interpretation and for intraocular lens power calculation for cataract surgery, particularly in a post-RK/LASIK/PRK eyes, since in these eyes, the IOL power is much likely to be off, hence, special skills and knowledge are needed to perform the appropriate IOL power calculation. We are actively conducting research projects in these areas and offer a free IOL calculation service for cataract surgeon colleagues from around the U.S. and the world. We have published the following major textbooks, in this field:
- Corneal Topography in the Wavefront Era
- Irregular Astigmatism – Diagnosis & Treatment
- Corneal dystrophy and degeneration – a molecular biological approach
- Keratoconus and keratoectasia – prevention, diagnosis and treatment
- Laser Vision Correction
If you have difficult IOL calculation for cataract surgery for your patients, particularly for post-RK/LASIK/PRK eyes, you are welcomed to contact us at drwang@wangvisioninstitute.com, we will do our best to help you and your patients. Our calculation for you and your patients are free-of-charge, and we do collect these data, for our on-going research effort, to improve the state-of-the-art technology in IOL calculation for post-RK/LASIK/PRK eyes.
The following data is required for the clinical history method:
| OD | OS | |
| K's Pre-Op | ||
| MR Pre-Op | ||
| MR Post-Op | ||
| K's Post-Op |
Refraction derived Keratometry readings at the spectacle plane, and corneal plane can be calculated using the clinical history method.
Gas perm lenses can be used to determine the corneal curvature. Known contact lens power and base curve, when combined with the over-refraction in the corneal plane, allow calculation of the corneal curvature.
Adjusted Effective Refractive Power (Eff RPadj): Measurement of post-op corneal power using the EyeSys corneal analysis system provides the Eff RPadj in the Holladay diagnostic summary. [Eff RPadj = Eff RP - (0.15 x ΔMR). (Mean SE +0.88+/-)]
Maloney Method: Central corneal power is determined using the Humphrey Atlas topographer, with modification of the formula: CP = (central topographic power) x [376/337.5]) - 4.9.
Orbscan IIz: Two measurements using the Orbscan IIz, 2 mm total mean power calculation and a 4 mm total optical power calculation.
If you have difficult IOL calculation for cataract surgery for your patients, please email us or call (615)321-8881.
