There are a number of ways to improve near vision for presbyopes, including multifocal intraocular lenses (IOLs)–traditional or low add–and pseudoaccommodative IOLs. It has been well documented that a small pupil and higher order aberrations, such as spherical aberration (SA) or coma, can increase depth of focus.
Increased procedure volume and patient expectations have made IOL exchange procedures more common. Smaller incisions and the need to reduce trauma require new micro-instrumentation for best outcomes.
White light is comprised of different wavelengths of visible light, ranging from red (700 nm) to violet (400 nm). As white light passes through an optical system, each of its component wavelengths bends independently.
Achieving satisfaction for patients interested in a multifocal IOL begins with comprehensive preoperative screening and evaluation.
Using dysfunctional lens syndrome stages, physicians can discuss a range of treatment options with patients, based on clinical findings and refractive error.
A novel toric IOL features an aberration-free, transitional conic anterior optic surface shows pupil independence and improved tolerance to misalignment in bench testing and excellent clinical outcomes.
Ophthalmologists must be prepared to perform corneal refractive surgery enhancements after cataract surgery-and LASIK is often the optimal choice, according to Robert K. Maloney, MD.
Both the Tecnis multifocal +2.75 D and +4.00 D IOLs had good visual results, but the +2.75 D IOL had a better range of vision across near, intermediate, and distance.
Aphakic eyes that have no or inadequate capsular support can pose a significant challenge to cataract surgeons. Careful attention to the preoperative considerations, appropriate intraocular lens choices, surgical techniques, and postoperative management can ensure optimal results.
Trifocal IOLs can provide good uncorrected vision at near, intermediate, and far. Outcomes in a series of 30 patients show that a toric version of a trifocal IOL (AT Lisa tri 939MP, Carl Zeiss Meditec) delivers those benefits for patients with > 1 D of corneal astigmatism.
Accommodating-disaccommodating IOLs are being developed that mimic the movement of the young crystalline lens through the use of “Zonular Capture Haptics” technology.
When it comes to their eyes, patients want the safest treatments, and they know the best technology available is a laser. The cataract patient demographic is changing, and patients today have active lifestyles that demand functional vision.
Multifocal IOLs offer the potential to reduce spectacle dependence, but outcomes vary depending on optical design. Optimizing success and satisfaction depends on careful patient selection, thorough counseling, and good surgical technique.
An approach is described for completing cortex removal and IOL implantation after intraoperative 180° zonular dialysis.
IOL implantation was associated with more inflammation and slightly more visual obscuration in 120 children age 2 or younger undergoing bilateral cataract surgery. However, the rate of glaucoma was similar compared with an aphakic group.
When the topic of IOL implantation is on the table, the age of the patient does make a difference, according to pediatric expert Courtney Kraus, MD, who spoke at the Wilmer Eye Institute’s 27th annual Current Concepts in Ophthalmology conference.
Two clinicians explore why an optimal visual solution for patients may be using both a low-add multifocal and an extended-range-of-vision lens.
Phakic IOLs are viable alternatives for treating high refractive errors.
Implantation of the newest Implantable Collamer Lens phakic intraocular lenses (V4b and V4c) did not cause cataract formation in highly myopic patients.
Intraocular lenses have come a long way in the 66 years since Harold Ridley first inserted one, said Alan Carlson, MD, professor of ophthalmology, Duke University, Durham, NC.
While the accuracy of IOL power selection has advanced since the early days of phacoemulsification, the selection of the proper IOL power is always in the background when a surgeon performs cataract surgery, Dr. Hill said.
A new image-guided system streamlines surgical planning for patients undergoing cataract surgery with implantation of a single-piece aspheric IOL or a multifocal IOL.
Ophthalmologists spend significant amounts of time during cataract surgery trying to precisely center an implanted IOL to achieve the best possible vision after surgery. The high success rate of cataract surgery suggests that in most cases, they succeed.
Were he alive today, he would likely feel heartened by how his work has been carried on by Gerd U. Auffarth, MD, FEBO, who is now director of The David J Apple International Laboratory for Ocular Pathology at the University of Heidelberg, Germany.
The 2015 International Society of Refractive Surgery survey, the twentieth such survey and the seventh year published online, presents new findings about surgeons’ preferences in corneal and lens-based surgeries, premium intraocular lenses (IOLs), and femtosecond cataract surgery.
