Using Forceps to Remove the Rusty Ring that Forms after a Metal Foreign Body in the Cornea

Cornea Rusty Ring Removal by Forceps Reduces Surgery Time and Pain, and Speeds Corneal Wound Healing

Status

Completed

Phases

Unknown

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12611001211954

Acronym

Enrollment

Registered

2011-11-24

Start date

2010-01-01

Completion date

Unknown

Last updated

2020-01-13

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

Conditions

None listed

Brief summary

Totally 40 cornea metal foreign body injury cases were engaged to have the foreign body removal surgery. The new surgery protocol is characterized as a levering action was used to remove the foreign body from the cornea. If removal was incomplete due to the remaining of a rusty ring, removing the rim of the ring was elevated slightly by the needle tip so that it could be grasped easily with the forceps. Then, the entire ring was pulled gently using the forceps. The advantages of the new surgery include shortened surgery time, reduced pain score, and shortened corneal wound healing.

Interventions

In the conventional protocol, the residual material after foreign body is taken off and rusty ring are digged out by using a 30G injection syringe needle. In the new protocol, the rusty ring is removed mainly by using a micro-knot forceps which is usually used in the anterior eye segment surgery. The rim of the ringelevated slightly by the needle tip so that it could be grasped easily with the forceps. Then, the entire ring was pulled gently using the forceps. The average surgery time under the

Study design

Allocation

Randomised controlled trial

Intervention model

Parallel

Primary purpose

Treatment

Masking

Open (masking not used)

Eligibility

Sex/Gender

All

Age

18 Years to 56 Years

Healthy volunteers

Inclusion criteria

Subjects with superficial corneal foreign body injuries caused by metal debris (one eye in each patient)

Exclusion criteria

If removal was complete with no rusty ring remaining after a levering action was used by a needle to remove the foreign body from the cornea.

Outcome results