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Abstract #90711 Published in IGR 21-3

The effect of successful trabeculectomy on the ocular surface and tear proteomics-a prospective cohort study with 1-year follow-up

Vaajanen A; Nättinen J; Aapola U; Gielen F; Uusitalo H
Acta Ophthalmologica 2021; 99: 160-170

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PURPOSE: To report changes in the ocular surface and tear proteomics after discontinuation of chronic glaucoma medication. METHODS: Patients requiring trabeculectomy were recruited from the glaucoma clinic of Tampere University Hospital, Finland. Fifty-seven patients with previous history of anti-glaucomatous eye drops (8.1 ± 6.8 years) and having undergone a successful trabeculectomy were included in this report. Outcomes of interest were conjunctival redness grading, tear secretion (Schirmer I) and tear film proteomics (SWATH-MS) in addition to thorough clinical examination. The protocol included five time points: preoperative visit and postoperative visits at month 1, 3, 6 and 12. All parameters measured were compared to the corresponding preoperative levels of each individual eye. RESULTS: Conjunctival redness and irritation were significantly reduced during follow-up, while tear production remained unchanged. Protein profiles of the tear film indicated significant changes in the ocular surface. Lipid transport was increased while several pro-inflammatory proteins were consistently decreased after the surgery. CONCLUSION: Clinical signs as well as the proteomics results indicated that the trabeculectomy and resulting cessation of topical glaucoma medication were very beneficial to the ocular surface. The state of the conjunctiva improved throughout the 1-year follow-up while the levels of pro-inflammatory proteins decreased and lipid transport-associated functions were increased.

Tays Eye Centre, Tampere University Hospital, Tampere, Finland.

Full article

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Classification:

12.8.1 Without tube implant (Part of: 12 Surgical treatment > 12.8 Filtering surgery)
2.1 Conjunctiva (Part of: 2 Anatomical structures in glaucoma)
2.2 Cornea (Part of: 2 Anatomical structures in glaucoma)
3.12 Proteomics (Part of: 3 Laboratory methods)

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