4.5 Review

Scleral thinning causes, diagnosis, and management: A narrative review

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CONTACT LENS & ANTERIOR EYE
卷 46, 期 3, 页码 -

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ELSEVIER
DOI: 10.1016/j.clae.2023.101825

关键词

Sclera thinning; Scleromalacia; Sclera; Management

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This review summarizes the anatomical consideration and causes of scleral thinning, diagnosis, and the various surgical approaches available to treat scleral thinning. Scleral thinning can lead to perforation and worsening visual functioning. Treatment options include pharmacological treatment and surgical treatments such as scleral transplantation and amniotic membrane transplantation.
Introduction: Sclera forms the outer fibrous coat of the eye and provides structural integrity for the housing of intraocular contents. Scleral thinning is a serious progressive condition which can lead to perforation and worsening visual functioning. This review aims to summarize the anatomical consideration and causes of scleral thinning, diagnosis, and the various surgical approaches available to treat scleral thinning.Materials and methods: The narrative literature review was conducted by senior Ophthalmologists and re-searchers. PubMed, EMBASE, Web of Science, Scopus, and Google Scholar databases were searched for relevant literature from infinity till March 2022. Terms of the search referred to 'sclera' or 'scleral thinning' or 'scleral melting', and were combined with 'treatment', or 'management' or 'causes'. Publications were included in this manuscript if they offered information about the nature of these topics. Reference lists of relevant literature was searched. There were no limits on type of article to be included for this review. Results: Scleral thinning arises from diverse congenital, degenerative, immunological, infectious, post-surgical, and traumatic etiologies. It is diagnosed upon slit-lamp examination, indirect ophthalmoscopy, and optical coherence tomography. Conservative pharmacological treatment of scleral thinning may include anti-inflammatory drugs, steroid drops, immunosuppressors, monoclonal antibodies, and surgical treatments including tarsorrhaphy, scleral transplantation, amniotic membrane transplantation, donor corneal graft, conjunctival flaps, tenon's membrane flap, pericardial graft, dermis graft, cadaveric dura mater graft, and other autologous and biological grafts.Conclusion: Scleral thinning treatments have developed dramatically in recent decades and the rise of alternative grafts for scleral transplantation procedures or use of conjunctival flaps have taken center stage in surgical management. This review adds a comprehensive summary of the scleral thinning with attention to the positive and negative features of new treatments alongside previous mainstay management strategies.

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