Factors Affecting Changes in Refractive Prediction Error after Implant Surgery of Single-Piece Acrylic Intraocular Lens

Factors Affecting Changes in Refractive Prediction Error after Implant Surgery of Single-Piece Acrylic Intraocular Lens - Changes in Prediction Error after Implantation of Single-Piece Acrylic Intraocular Lens

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000037400

Enrollment

240

Registered

2019-07-17

Start date

2018-10-30

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Cataract

Interventions

Two-hundreds and forty eyes of 240 patients underwent small-incision cataract surgery and implantation of four types of single-piece-acrylic IOL. The IOL used were Alcon SN60WF, AMO ZCB00V, Santen W-6

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: First-operated eyes of patients who were scheduled for implant surgery of four types of single-piece acrylic IOL.

Exclusion criteria

Exclusion criteria: 1) any pathologies of cornea, macula, and media opacity other than cataract, 2) history of ocular inflammation and surgery, 3) marked irregular astigmatism, 4) preudoexfoliation syndrome, 5) pupillary diameter less than 5.0 mm at mydriasis, 6) possibility of amblyopia, 7) difficulty in 2 months' follow-up, 8) difficulty in examinations, 9) patient refusal

Design outcomes

Primary

Measure	Time frame
1) Arithmetic IOL power prediction error (PE) 2) absolute value of PE	—

Countries

Japan

Contacts

Public ContactKen Hayashi

Hayashi Eye Hospital Department of ophthalmology

hayashi-ken@hayashi.or.jp092-431-1680

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026