Table of Contents
- 1 What is considered very high myopia?
- 2 What is the highest corrective lens?
- 3 What is monovision correction?
- 4 What’s the strongest eye prescription?
- 5 How to measure IOL power for Ultra-High myopes?
- 6 What are the best lens options for highly myopic patients?
- 7 What size IOL should I use for capsulorrhexis?
What is considered very high myopia?
Doctors generally define high myopia as nearsightedness of -6 diopters or higher, according to the American Association for Pediatric Ophthalmology & Strabismus. The Association also notes that high myopia often occurs in people with very long eyes, and typically appears during early childhood.
What is the highest corrective lens?
Collaboration between Franco-Slovak experts enabled the need evaluation, design, manufacture and fitting of -108 diopter lenses to correct what is probably the world’s highest degree of myopia. This record, set in February 2016, topped the previous achievement of -104 diopters set by the same team in January 2015.
What is the strongest lens prescription?
Essilor has achieved a world record for manufacturing Special Lenses with the power of -108.00 dioptres and a 6.00 cylinder.
What is monovision correction?
Monovision involves one eye, usually the dominant eye, being corrected for distance viewing, and the other eye being corrected for near viewing. Monovision is actually a misnomer, since both eyes work together when viewing distance and near.
What’s the strongest eye prescription?
What prescription is too high for Lasik?
To qualify for the newest LASIK technology (topography-guided LASIK), your refractive prescription should fall within the following: Up to -8.0 diopters of nearsightedness, or. Up to -3.0 diopters of astigmatism, or.
How to measure IOL power for Ultra-High myopes?
This highly myopic eye has an axial length of 36 mm and a preoperative refraction of –21 D. Do not use the automated biometer printout to determine IOL power. I recommend these methods for IOL power estimation for ultra-high myopes: Ladas Super Formula 2.0 with artificial intelligence; and Hill-RBF method (if parameters are “in bounds”).
What are the best lens options for highly myopic patients?
Several lens options are available for the highly myopic patient, including the following: P574UV PMMA Non-Foldable IOL (Bausch & Lomb, Rochester, NY): down to -18.9 Sensar AR40M Acrylic IOL (Abbott Medical Optics [AMO], Santa Ana, CA): -10.0 to +1.5 D
Who are the pioneers in IOL power calculations for ultra-high myopic eyes?
We certainly owe a debt of gratitude to the pioneers who have helped in the IOL power calculations for ultra-high myopic eyes: Jack Holladay, MD, Wolfgang Haigis, PhD, Graham Barrett, MD, Warren Hill, MD, Doug Koch, MD, Li Wang, MD, PhD, and John Ladas, MD, PhD. Full video and further explanation can be found at www.CataractCoach.com.
What size IOL should I use for capsulorrhexis?
Avoid using the iris or pupil dilation as a guide for the capsulorrhexis size because these highly myopic eyes have larger anterior segment dimensions. We have chosen a three-piece acrylic IOL in a power of –3 D (minus power) for the right eye to give a postop result of mild myopia of about –0.5 D to –1 D, which should be excellent.