A cataract is when the natural lens of the eye becomes cloudy and affects your vision. Cataract surgery removes the cloudy lens and replaces it with a lens implant (IOL).

All lens implants have a prescription to provide improved vision. We offer 2 categories of IOLs: adjustable and fixed.  Lens power is determined before surgery, but there may be mild residual refractive error after surgery. Continue reading for further descriptions of these lenses. 

The Light Adjustable Lens™ by RxSight uses the same measurements and calculations as fixed lenses before surgery; however, you can “test drive” your vision, and the lens power can be changed after healing to correct residual prescription needs. This provides better vision without glasses after surgery than fixed lens technology. Advantages to the adjustable lens include:
• Custom tailored to your individual eyes.
• Can be adjusted with non-surgical light treatments in the doctor's office to correct residual nearsightedness, farsightedness, and astigmatism to provide the best visual outcomes.
• Proven to have twice the likelihood of achieving 20/20 vision compared to fixed lenses.
• Has some extended range of focus to provide at least midrange vision when aimed for distance.
• Well suited for blended vision to have one eye that is slightly more distance dominant and one that is more near dominant but blended to work well together. 

Due to variations in healing, while fixed lenses can provide very good vision, the exact lens power is not always accurate.
Standard Monofocal
• Is the only lens implant that has no added cost to the patient.
• Uses “out of the box” lens powers that can’t be adjusted after surgery.
• Does not provide any astigmatism correction or near vision correction when aimed for optimal distance.
• Due to variations in lens positioning during the healing process, many patients will need glasses at all distances after surgery. 
Toric (astigmatism)
• Reduces astigmatism to provide better distance vision than can be achieved with standard IOL’s.
• Can’t guarantee eliminating residual refractive error but improves distance vision without glasses.
• Reading glasses needed for most near vision activities.
Multi-Focal
• Can provide tri-focal vision to improve distance, mid-range and near vision while also correcting astigmatism if needed.
• Circular rings in the IOL provide these multiple ranges of vision, which could result in halos around lights. Extended Depth of Focus
• Corrects distance, mid-range, and some degree of near correction.
• Does not contain circular rings in the IOL to reduce risk of halos after surgery.
• Can also correct astigmatism if needed.
• Well suited to blended vision or mini-mono vision. 

Standard Monofocal
• For patients who don’t mind wearing glasses at all distances after surgery.
• Covered by insurance with no added cost to the patient.
Premium Fixed Lens
• None of these can be adjusted after surgery.
• Toric lens implants provide astigmatism correction for good distance. Glasses for near vision activities will be required.
• Multifocal provides the greatest depth of focus with a small chance of halos.
• Extended Depth of Focus provides great distance and mid-range with good near vision while reducing risk of halos. Well suited to blended vision. 
Light Adjustable Lens™
• Provides best distance vision with some mid-range and near vision through custom treatment after surgery.
• Best option for patients who have had previous refractive surgery, such as LASIK, PRK or RK.
• Provides most independence from prescription glasses.