Observational studyInternational ophthalmology2026
Rotational stability and visual outcomes of toric implantable collamer lenses in eyes with horizontal and non-horizontal implanting orientation: an observational study.
Observational study in International ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
purposeTo evaluate the short-term rotational stability and visual outcomes of the toric intraocular collamer lens (TICL) with horizontal and non-horizontal implantation orientation based on the Callisto eye system.
methodsThis observational study analyzed 77 eyes from 51 patients with horizontal (n = 41) and non-horizontal (n = 36) TICL implantation. Examinations were performed preoperatively and at 1 week, 1 month, and 3 months. Outcomes included uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refraction, and TICL axis position; rotational stability was quantified from dilated slit-lamp photographs. The primary endpoint was mean absolute rotation at 3 months.
resultsAt 3 months, absolute rotation was 3.71 ± 2.72° (horizontal) and 3.15 ± 2.85° (non-horizontal), with no between-group difference (P = 0.385). Rotation ≤ 5° occurred in 73.17% (horizontal) and 88.89% (non-horizontal); ≤ 10° in 100% and 97.22%, respectively. Visual outcomes were excellent and comparable: at 3 months, UDVA 20/20 or better in 100% of eyes in both groups; efficacy index 1.19 ± 0.21 (horizontal) vs 1.17 ± 0.15 (non-horizontal); safety index 1.25 ± 0.21 vs 1.22 ± 0.19. Achieved refraction closely matched target (attempted-vs-achieved slope y = 1.02x + 0.01). Residual cylinder at 3 months was -0.42 ± 0.28 dioptres (D) (horizontal; within ±0.50 D in 87.8%, within ±1.00 D in 97.56%) and -0.33 ± 0.32 D (non-horizontal; within ±0.50 D in 94.44%, within ±1.00 D in 100%); difference non-significant (P = 0.156).
conclusionNon-horizontal EVO-TICL implantation yields rotational stability, safety and efficacy comparable to horizontal placement over 3 months, with small mean rotations and tight refractive predictability. These findings support non-horizontal orientation as a viable alternative when anatomy or vault optimization warrants it.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.