The Application of M-charts and Microperimetry for the Assessment of Visual Function in Patients After Vitrectomy Due to the Full Thickness Macular Hole.

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03701542

Enrollment

Registered

2018-10-10

Start date

2016-01-01

Completion date

2017-12-31

Last updated

2018-10-10

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

Conditions

Macular Holes, Microperymetry, Vitrectomy, M-charts

Keywords

macular hole, microperymetry, vitrectomy, m-charts, metamorphopsia

Brief summary

To examine the relationship between morphological and functional results in eyes after vitrectomy due to the full thickness macular hole (FTMH).

Interventions

DIAGNOSTIC_TESTMicroperymetry

Microperimetry is a procedure to assess retinal sensitivity while fundus is directly examined; it enables exact correlation between macular pathology and corresponding functional abnormality.

DIAGNOSTIC_TESTM-charts

The M-chart (Inami Co., Tokyo, Japan) is a diagnostic tool developed by Matsumoto to quantify the degree of metamorphopsia in patients with macular diseases.

Study design

Observational model

CASE_ONLY

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Inclusion criteria

The diagnosed full thickness macular hole and psuedophakia.

Exclusion criteria

macular pseudohole, non-full thickness macular hole, retinal detachment, other ocular comorbidities.

Design outcomes

Primary

Measure	Time frame	Description
The best-corrected visual acuity (BCVA)	1 to 6 months	Acuity is a measure of visual performance. The eye exam seeks to find the prescription that will provide the best corrected visual performance achievable
Amsler test	1 to 6 months	The Amsler grid, consisting of evenly spaced horizontal and vertical lines, has been widely used since 1947 to test the metamorphopsia.
Central retinal thickness	1 to 6 months	Quantitative thickness measurements derived from the fast macular scan algorithm report retinal thickness at several locations including the center point, central subfield, and 4 inner and 4 outer zones of the macula.

Secondary

Measure	Time frame	Description
Retinal sensitivity	1 to 6 months	Microperimetry is a procedure to assess retinal sensitivity while fundus is directly examined; it enables exact correlation between macular pathology and corresponding functional abnormality. It is a psychophysical method which is rapid, safe and non-invasive.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026