Red-Free Light for Measurement of Intraocular Pressure in Healthy Volunteers using Goldmann Applanation Tonometer without Fluorescein

Status

Completed

Phases

Unknown

Study type

Observational

Source

ANZCTR

Registry ID

ACTRN12613000014752

Enrollment

500

Registered

2013-01-07

Start date

2011-11-03

Completion date

2012-01-04

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

Abstract Purpose: To evaluate the use of red free light in the measurement of intraocular pressure using a Goldmann applanation tonometer without Fluorescein. Materials and Methods: Five hundred eyes of 250 patients attending the Ophthalmology Outpatient, Suez Canal University Clinic were measured for intraocular pressure using the same Goldmann applanation tonometer mounted on Haag-Streit Slit Lamp, measurement first were done with red free light without Fluorescein then other measurements were done with cobalt blue light and topical Fluorescein on the same eyes . Results: The Mean IOP was 15.23+/- 6.3 (SD) mm Hg using the red free light without Fluorescein while the mean was 15.78 +/- 6. 7 (SD) mm Hg using cobalt blue light and after application of Fluorescein in the conjunctival sac. On paired t test analysis, this difference was not significant. Conclusion: Measurement of IOP with Goldmann appanation tonometer with red free light without the use of Fluorescein is easy, simple, save time and give an accurate IOP measurement compared to traditional measurement with cobalt blue light and topical Fluorescein.

Interventions

Five hundred eyes of 250 patients attending the Ophthalmology Outpatient, Suez Canal University Clinic were measured for intraocular pressure using the same Goldmann applanation tonometer mounted on Haag-Streit Slit Lamp, measurement first were done with red free light without Fluorescein then other measurements were done with cobalt blue light and topical Fluorescein on the same eyes . The measurement for one patient take place in one session and all measurements takes 15 minutes per patient.

Eligibility

Sex/Gender

All

Age

20 Years to 60 Years

Healthy volunteers

Yes

Inclusion criteria

healthy persons attending ophthalmology outpatient clinic

Exclusion criteria

patients with corneal pathology

Outcome results