NCT00712231

Brief Summary

There have been numerous studies comparing various ACD measurements in phakic eyes,while researches comparing ACD in pseudophakic eyes are less extensive. With the recent popularity of presbyopia correction, measuring the ACD will facilitate differentiating pseudophakic accommodation from pseudoaccommodation. It is thus mandatory to verify the accuracy of ACD measurement of these devices since the innovation of various IOLs in the recent decade makes this task more complicated. In this study, we will assess the limitations of using Pentacam for ACD measurement in pseudophakic eyes and compare Pentacam measurement with IOLMaster and A-scan measurements.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
184

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2008

Shorter than P25 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2008

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2008

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

July 7, 2008

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 9, 2008

Completed
Last Updated

July 9, 2008

Status Verified

July 1, 2008

Enrollment Period

1 month

First QC Date

July 7, 2008

Last Update Submit

July 8, 2008

Conditions

Cataract

Keywords

pseudophakicanterior chamber depthPentacam

Study Arms (2)

phakic eyes

the cases did not accept any intraocular surgery

pseudophakic eyes

tht cases did not accept any intraocular surgery expect for cataract surgery

Eligibility Criteria

Age40 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Ninety phakic eyes were randomly selected for study from the outpatient clinic. Ninety-four pseudophakic eyes that had a standard clear cornea phacoemulsification with one of three acrylic IOLs (MA60BM, SA60AT, SN60AT) implanted into the capsular bag by the same surgeon were also studied.

You may qualify if:

  • Phakic group: randomized
  • Pseudophakic eyes : the cases accepted cataract surgery

You may not qualify if:

  • Previous ocular trauma or intraocular surgery other than cataract surgery;
  • Contact lens use in the past two months;
  • Use of medication that might affect the pupil; corneal disease or ocular infection;
  • History of ocular disease, such as
  • Dry eye syndrome
  • Uveitis
  • Glaucoma
  • Ocular tumor
  • Cases with any surgical complications were also excluded.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Biospecimen

Retention: NONE RETAINED

no specimen

MeSH Terms

Conditions

Cataract

Condition Hierarchy (Ancestors)

Lens DiseasesEye Diseases

Study Officials

  • Shu-Wen Chang

    Far Eastern Memorial Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER

Study Record Dates

First Submitted

July 7, 2008

First Posted

July 9, 2008

Study Start

January 1, 2008

Primary Completion

February 1, 2008

Study Completion

February 1, 2008

Last Updated

July 9, 2008

Record last verified: 2008-07