Evaluating the Effect of Laser Vision Surgery, Phakic Intraocular Lens Implantation, Cataract Surgery, and Pupil Dilation on the Iris Recognition Scanner Function of Smartphone

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02939001

Enrollment

Registered

2016-10-19

Start date

2016-10-03

Completion date

2017-03-24

Last updated

2018-07-18

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

Conditions

Cataract, Myopia, Myopic Astigmatism

Brief summary

This study included patients who visit for refractive surgery (photorefractive keratectomy, photorefractive keratectomy with with corneal collagen cross linking, laser in situ keratomileusis, small incision lenticule extraction), phakic Intraocular Lens implantation (Implantable Collamer Lens, artiflex), and cataract surgery. Patients will be examined whether iris recognition scanner of smartphone works before and after surgery. In addition, before and after pupil dilation (5mm, 6mm, 7mm, 8mm), patients will be examined whether iris recognition scanner of smartphone works well.

Interventions

DEVICEiris recognition scanner

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

DIAGNOSTIC

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

20 Years to 90 Years

Healthy volunteers

Yes

Inclusion criteria

* Patients who visit for refractive surgery (photorefractive keratectomy, photorefractive keratectomy with with corneal collagen cross linking, laser in situ keratomileusis, small incision lenticule extraction) * phakic Intraocular Lens implantation (Implantable Collamer Lens, artiflex) * cataract surgery. * age of 20\ 90

Exclusion criteria

* history of previous ocular or intraocular surgery * glaucoma or ocular hypertension, ocular infection, non-dry eye ocular inflammation, ocular allergy, autoimmune disease * history of iris damage during ocular surgery or previous trauma * wearing contact lenses during the study period * presence of current punctal occlusion * pregnancy, lactating women, and children

Design outcomes

Primary

Measure	Time frame	Description
capability of iris recognition scanner	1 day before the surgery	Patients will be examined whether iris recognition scanner of smartphone works 1 day before refractive surgery (photorefractive keratectomy, photorefractive keratectomy with corneal collagen cross linking, laser in situ keratomileusis, small incision lenticule extraction), phakic Intraocular Lens implantation (Implantable Collamer Lens, artiflex), and cataract surgery.

Secondary

Measure	Time frame	Description
pupil dilation	1 day before pupil dilation	Patients will be examined whether iris recognition scanner of smartphone works well 1 day before pupil dilation.

Countries

South Korea

Outcome results

None listed

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