A randomised cross-over pilot study of Entonox for pain relief in ophthalmic laser

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN02817810

Enrollment

Registered

2004-09-30

Start date

2000-05-01

Completion date

Unknown

Last updated

2015-01-13

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

Conditions

Signs and Symptoms: Pain Signs and Symptoms Pain

Interventions

Entomox for pain relief in ophthalmic laser Added 10/12/09: trial stopped due to lack of funding/sponsorship and participant recruitment issue

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients attending for a course of laser pan-retinal photocoagulation will undergo a standardised treatment, receiving entonox on alternative visits. A pain score will be assessed after each treatment.

Exclusion criteria

Exclusion criteria: Not provided at time of registration

Design outcomes

Primary

Measure	Time frame
Pain score assessment after each treatment	—

Secondary

Measure	Time frame
Not provided at time of registration	—

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026