Myopic Shift in a Patient with Dengue Fever

ABSTRACT

Purpose

This report aims to present a case of dengue-related myopic shift.

Methods

This is a case report of a patient with dengue-related transient myopia, and demonstrates possible underlying pathophysiology.

Results

A 38-year-old gentleman presented with bilateral blurring of vision with an unaided visual acuity (VA) of 6/120 bilaterally. He had a refractive error of −2.50 dioptres in the right eye, and −3.50 dioptres in the left eye. Ultrasound biomicroscopy (UBM) revealed suprachoroidal effusion with anterior displacement of the lens-iris complex bilaterally. Biometry performed showed lens thickness (LT) of 4.47 mm in the right eye, and 4.65 mm in the left eye. His unaided VA was noted to be 6/6 bilaterally 4 days later.

Conclusions

Dengue-related myopic shift was likely secondary to two mechanisms. Firstly, suprachoroidal effusion resulted in an anterior displacement of the lens-iris complex. Secondly, there was an increase in the antero-posterior diameter of the lens, resulting in index myopia.

KEYWORDS:

• Dengue
• refractive error
• myopic shift
• suprachoroidal effusion

Disclosure statement

No potential conflict of interest was reported by the author(s).

Summary statement

We present a first reported case of myopic shift associated with suprachoroidal effusion and increased lens thickness, in dengue fever. This is possibly secondary to anterior rotation of the lens-iris diaphragm complex and index myopia.

Additional information

Funding

The author(s) reported there is no funding associated with the work featured in this article.