Helm Vision Group
Cataract surgery involves the removal of a cloudy natural lens, followed by the implantation of an artificial lens. The choice of lens implant helps determine what the vision will be like after surgery. "Monofocal" lens implants are not designed to give both distance and close-up vision at the same time. We wish to study the amount of reading ability that a lens implant corrected for distance vision will provide. Eligible study participants include those who have had cataract surgery with implantation of either the Light Adjustable Lens® (LAL), the Light Adjustable Lens Plus® (LAL+) or the Bausch \& Lomb Akreos® AO60 lens implant. We anticipate enrolling up to 100 subjects in this study. These lens implants are designed to achieve excellent distance vision, inasmuch as the lens implant target is achieved. The lens implant target of excellent, unaided distance vision is more likely to be achieved when the chosen power of the lens implant matches the eye's curvature and length. Before cataract surgery, the eye is measured by a machine, and the information is used to calculate which lens power is predicted to best match the eye. In the case of the LAL, a light delivery device is used after surgery to fine-tune the power of the lens implant and achieve sharper unaided vision. Although both of these lens implants are technically "monofocal" lenses and work well for distance vision, they differ in ways that affect near vision. "Pseudoaccommodation" is the term that refers to the ability of an eye with a lens implant to see up close without glasses. The optical qualities of the Light Adjustable Lens generally allow eyes implanted with this lens to see objects at an intermediate or close-up range without glasses. The amount of pseudoaccommodation or close-up ability in these eyes differs from person to person. The purpose of this study is to determine the average amount of reading ability in eyes implanted with the Light Adjustable Lens® and compare it to the amount measured with the Bausch \& Lomb AO60 lens.
The purpose of this study is to measure the capability of three different monofocal (non-multifocal) lens implants to also provide near vision when corrected for distance vision. We will be comparing two versions of the Light Adjustable Lens® (RxSight, Irvine, CA) and also the Akreos® AO60 lens (Bausch \& Lomb, Bridgewater, NJ). All three of these lens FDA-approved lens implants were categorized as being "monofocal", meaning that all light rays entering the eye are focused at one particular point. This means that when eyes that have these types of lens implants are corrected to see well at dis…
Inclusion Criteria: Those who have had cataract surgery with implantation of either the Light Adjustable Lens or the Light Adjustable Lens Plus, or the Akreos AO60 lens implants. Must have not had previous keratorefractive surgery and no ocular pathology that precludes being correctable to 20/20 vision. \- Exclusion Criteria: Those under 18 years of age, those unable to give informed consent, prisoners, or those who are pregnant. \-
We will be using an assessor, masked as to which participant received what particular lens implant to determine the range of pseudoaccommodation in each eye. This will be done for each eligible eye and the 3 cohorts will be studied and compared.