PMC8784477_01
Biomicroscopic view at presentation. (a) Paralimbal corneal and conjunctival keratinization; (b) Bitot's spot at the temporal conjunctiva.
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F1
A deficiency (Fig. 1). An analysis of the patient's serum vitamin A level was ordered, and the result was 0.04 microg/dL (normal range: 30-80 microg/dL).
The 1-month follow-up examination results. Note the decrease in the size of the Bitot's spot findings. (a) Right eye; (b) Left eye.
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F2
An ophthalmological examination indicated improved visual acuity to 20/32, and the corneal and conjunctival keratinization had substantially decreased in both eyes (Fig. 2).
The 3-month follow-up examination results. There were no signs of corneal or conjunctival keratinization. (a) Right eye; (b) Left eye.
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F3
An electroretinogram (ERG) was ordered in order to evaluate photoreceptor function at the 1-month visit and revealed normal results. At her 3-month visit, the patient continued to report no ocular symptoms, and a biomicroscopic examination showed no signs of Bitot's spot or corneal keratinization (Fig. 3).