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Fluoro-photometry in myotonic dystrophy.

L J Blanksma, A C Kooijman, J V Siertsema

Documenta Ophthalmologica. Advances in Ophthalmology

|December 15, 1983

Summary

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Patients with myotonic dystrophy show pigment alterations and significantly higher fluorescence in ocular fluids. This suggests a defect in the blood-ocular barrier in myotonic eyes.

Area of Science:

Ophthalmology
Genetics
Biochemistry

Background:

Myotonic dystrophy is a multisystemic disorder.
Ocular manifestations are common in myotonic dystrophy patients.
Pigmentary changes in the anterior eye segment have been observed.

Purpose of the Study:

To investigate ocular fluid fluorescence in myotonic dystrophy patients.
To compare fluorescence levels with healthy individuals.
To assess the integrity of the blood-ocular barrier in myotonic dystrophy.

Main Methods:

Fluoro-photometry was performed on ten patients with myotonic dystrophy.
Ocular fluid samples (aqueous and vitreous) were analyzed.
Results were compared to a control group of normal individuals.

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Main Results:

Fluorescence levels in the aqueous and vitreous humor of myotonic eyes were two to three times higher than in normal eyes.
Significant pigment alterations were noted in the anterior segments of myotonic patients' eyes.
Elevated fluorescence indicates increased permeability.

Conclusions:

Myotonic dystrophy patients exhibit a defect in the blood-ocular barrier.
Increased ocular fluid fluorescence is a potential biomarker for this barrier dysfunction.
Further research is warranted to understand the implications of this defect.