A man in his 30s, with a history of two operated penetrating keratoplasty (PK), primarily for viral keratitis, presented with pain, redness and diminution of vision in his left eye of 4 days duration. Postoperatively, he was prescribed oral antivirals, topical steroid eyedrops, lubricants and antiglaucoma medications. Eight months after transplantation, an epithelial defect with heaped up margins was noted on anterior segment evaluation on a routine follow-up visit. On checking his medications, it was found that the patient was unknowingly using bromfenac drops in place of brimonidine tartrate for the past month. A diagnosis of neurotrophic keratitis was made in the setting of PK performed for viral keratitis, incited by use of topical bromfenac. The patient was prescribed preservative-free lubricants with immediate discontinuation of bromfenac drops. Topical steroid drops were withheld till the epithelial defect healed. Complete healing of the defect was noted after 4 weeks of therapy.
Purpose: To describe a novel association of TGFBI
variants with congenital glaucoma in a family with GAPO (growth
retardation, alopecia, pseudoanodontia, and progressive optic atrophy)
syndrome as well as among unrelated cases of Juvenile onset open angle
glaucoma (JOAG) along with the mechanistic impact of the variants on the
protein. Methods: This study of one family of GAPO with
congenital glaucoma and three unrelated patients of JOAG analysed a
common link to glaucoma pathogenesis. We report ocular features of 3
girls with GAPO syndrome born of consanguineous marriage in a multi-
generation consanguineous family. The proband (a 4year old girl) and her
younger sibling (1year old girl) were operated for bilateral congenital
glaucoma in both eyes. The elder sibling (10year old female) had
features of GAPO syndrome without glaucoma. Results: A genetic
evaluation using whole exome sequencing revealed a homozygous
ANTXR1 mutation in all three affected siblings with GAPO. No
other mutations were detected in the genes associated with glaucoma. A
rare missense variant in the TGFBI gene was shared in the two
siblings with congenital glaucoma and GAPO syndrome. We further found
three other unrelated patients with JOAG with no known glaucoma causing
gene mutations but having three different missense variants in the
TGFBI gene. One of these JOAG patients had familial granular
corneal dystrophy. Molecular dynamic simulations of the TGFBI and
3-D structural models of three of its variants showed significant
alterations, which could influence TGFBI function.
Conclusions: Variations in the TGFBI gene could have a
possible role in the pathogenesis of congenital and Juvenile onset open
angle glaucomas that needs further evaluation.
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