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Clinical Study to Evaluate the RxSight Light Adjustable Lens With the Light Delivery Device in Subjects With Preoperative Corneal Astigmatism

A Prospective Multi-Center Clinical Study to Evaluate Uncorrected Distance Vision and Quality of Vision After Light Treatments of an Implanted RxSight Light Adjustable Lens (RxLAL) With the Light Delivery Device (LDD) in Subjects With Preoperative Corneal Astigmatism

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03771352
Enrollment
55
Registered
2018-12-11
Start date
2018-06-19
Completion date
2020-07-01
Last updated
2021-06-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cataract

Keywords

cataract surgery, eye disease, lenticular opacification

Brief summary

For patients undergoing cataract surgery, the purpose of this study is to evaluate a patient's far vision without glasses and quality of vision after implantation and UV treatment of the RxSight Light Adjustable Lens (RxLAL).Following completion of all light treatments, the patient's far vision without glasses and quality of vision will be assessed 6 months postoperatively.

Interventions

DEVICERxSight RxLAL

The patients will be assessed for 6 months

Sponsors

RxSight, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
40 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Must sign a written Informed Consent form and be willing to undergo cataract surgery for the bilateral implantation of the RxLAL. * Greater than the age of 40 on the day the cataract surgery is performed. * Preoperative keratometric cylinder of \>=0.50 D and \<=4.00 D in both eyes. * Cataract causing reduction in best corrected distance visual acuity (BCDVA) to a level of 20/32 or worse with or without glare source in both eyes. * Willing and able to comply with the requirements for study specific procedures and visits.

Exclusion criteria

* Zonular laxity or dehiscence. * Age-related macular degeneration involving the presence of geographic atrophy or soft drusen. * Retinal degenerative disorder or macular disorder (other than mild macular degeneration) that is expected to cause future vision loss. * History of uveitis * Keratoconus or suspected of having keratoconus. * Previous corneal or intraocular surgery, except eyes with previous pterygium excision are permitted as long as the pterygium did not extend more than 2mm onto the cornea from the limbus. * Serious co-morbid conditions that in the judgement of the investigator makes inclusion in the study not in the best interest of the subject. * Subjects taking systemic medications that may increase sensitivity to UV light. * Subjects taking a systemic medication that is considered toxic to the retina such as tamoxifen. * History of ocular herpes simplex virus * History of congenital color vision defect

Design outcomes

Primary

MeasureTime frameDescription
Uncorrected Distance Visual Acuity (UCDVA) of 20/20 or Betterat 6 months postopPercent of eyes with monocular uncorrected distance visual acuity of 20/20 or better

Other

MeasureTime frameDescription
Safety: ISO 11979-7 Ocular Adverse Events (Device Related and Unrelated)Through study completion, an average of 6 monthsNumber of study eyes experiencing Ocular adverse events (device related and unrelated)
Number of Eyes That Received Secondary Surgical Interventions (SSIs)Through study completion, an average of 6 monthsSecondary Surgical Interventions (SSIs) of the study eyes that occur during the conduct of the study.

Countries

Germany, United Kingdom

Participant flow

Participants by arm

ArmCount
RxSight RxLAL IOL
Eligible patients will be implanted with the RxSight RxLAL intraocular lens (IOL) RxSight RxLAL: The patients will be assessed for 6 months
51
RxSight RxLAL IOL
Eligible patients will be implanted with the RxSight RxLAL intraocular lens (IOL) RxSight RxLAL: The patients will be assessed for 6 months
101
Total152

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyScreen failure2
Overall StudyWithdrawal by Subject2

Baseline characteristics

CharacteristicRxSight RxLAL IOL
Age, Continuous68.4 years
STANDARD_DEVIATION 9.7
Fellow Eyes Enrolled
OD
24 Eyes
Fellow Eyes Enrolled
OS
26 Eyes
Primary Eyes Enrolled
OD
26 Eyes
Primary Eyes Enrolled
OS
25 Eyes
Race/Ethnicity, Customized
Asian
0 participants
Race/Ethnicity, Customized
Black or African American
0 participants
Race/Ethnicity, Customized
White
51 participants
Region of Enrollment
Germany
43 participants
Region of Enrollment
United Kingdom
8 participants
Sex: Female, Male
Female
26 Participants
Sex: Female, Male
Male
25 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 51
other
Total, other adverse events
28 / 101
serious
Total, serious adverse events
2 / 101

Outcome results

Primary

Uncorrected Distance Visual Acuity (UCDVA) of 20/20 or Better

Percent of eyes with monocular uncorrected distance visual acuity of 20/20 or better

Time frame: at 6 months postop

Population: A modified Effectiveness (m-Effectiveness) population was used for all effectiveness analyses which includes all observed data without treatment related protocol deviations.

ArmMeasureValue (COUNT_OF_UNITS)
RxSight RxLAL IOLUncorrected Distance Visual Acuity (UCDVA) of 20/20 or Better45 Eyes
Other Pre-specified

Number of Eyes That Received Secondary Surgical Interventions (SSIs)

Secondary Surgical Interventions (SSIs) of the study eyes that occur during the conduct of the study.

Time frame: Through study completion, an average of 6 months

ArmMeasureValue (COUNT_OF_UNITS)
RxSight RxLAL IOLNumber of Eyes That Received Secondary Surgical Interventions (SSIs)1 Eyes
Other Pre-specified

Safety: ISO 11979-7 Ocular Adverse Events (Device Related and Unrelated)

Number of study eyes experiencing Ocular adverse events (device related and unrelated)

Time frame: Through study completion, an average of 6 months

Population: Safety population

ArmMeasureValue (COUNT_OF_UNITS)
RxSight RxLAL IOLSafety: ISO 11979-7 Ocular Adverse Events (Device Related and Unrelated)3 Eyes

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026