The goal of this post-market, prospective study at multiple clinics is to evaluate the rotational stability of the RayOne Model RAO800S non-toric monofocal intraocular lens with orientation marks in adult patients undergoing cataract surgery in both eyes. The main question it aims to answer is how stable the RayOne RAO800S lens is approximately 5 months (120 to 150 days) after surgery day. Participants are adults already scheduled to undergo cataract surgery as part of clinical routine. They will be asked to attend regular follow-up visits at the clinic, where eye images will be taken to assess the rotational stability of the implanted lens.
This post-market clinical follow-up (PMCF) study is a prospective, multicenter investigation in European sites. It evaluates the rotational stability of the RayOne Model RAO800S, a non-toric monofocal intraocular lens with orientation marks, following bilateral implantation. Participants will be assessed approximately 5 months (120 to 150 days) post-operatively.
Study Type
OBSERVATIONAL
Enrollment
92
Primary Effectiveness Endpoint - IOL rotation
Percentage of RayOne Model RAO800S IOLs with IOL rotation at Visit 4 (as determined by photographic method using baseline image at day of surgery) less than * 10 degrees in 90% of the cases as described in ISO 11979-7:2024. * 20 degrees in 95% of the cases as described in ISO 11979-7:2024.
Time frame: 120 to 150 days post-operatively (Visit 4)
Secondary Effectiveness Endpoints - Stability of IOL axis orientation
Stability of IOL axis orientation, expressed as percentage of IOLs that rotate ≤ 5 degrees postoperatively between 30 to 60 days (Visit 3) and 120 to 150 days (Visit 4) as described in the ANSI Z80.30-2018. This criterium is passed if 90% of the IOLs in the treated eyes rotate ≤ 5 degrees between the mentioned visits.
Time frame: 120 to 150 days post-operatively (Visit 4)
Secondary Effectiveness Endpoints - Axis misalignment
Axis misalignment, defined as the absolute difference between intended IOL axis orientation and Visit 4, (as determined by photographic method using baseline image at the day of surgery) shall be less than * 10 degrees in 90% of the cases as described in ANSI Z80.30-2018 * 20 degrees in 95% of the cases as described in ANSI Z80.30-2018.
Time frame: 120 to 150 days post-operatively (Visit 4)
Secondary Safety Endpoints - Rate of CDVA 0.30 logMAR
Rate of CDVA 0.30 logMAR or better at 120 to 150 days post-operatively (Visit 4) shall not exceed the ISO SPE threshold rates as described in ISO 11979-7:2024 (Table E.3)
Time frame: 120 to 150 days post-operatively (Visit 4)
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