Comparison of a commercial spectral-domain OCT and swept-source OCT based on an angiography scan for measuring circumpapillary retinal nerve fibre layer thickness.

Background/aims: To assess the agreement in measuring retinal nerve fibre layer (RNFL) thickness between spectral-domain (SD; Cirrus HD, Carl Zeiss Meditec, USA) optical coherence tomography (OCT) and swept-source (SS; Plex Elite 9000, Carl Zeiss Meditec) OCT using an OCT angiography (OCTA) scanning protocol.

Methods: 57 participants (12 glaucomatous, 8 ocular hypertensive and 74 normal eyes) were scanned with two OCT instruments by a single experienced operator on the same day. Circumpapillary RNFL thicknesses were automatically segmented for SD-OCT and manually segmented for SS-OCTA scans.

Outcomes of Repeat Anterior Lamellar Keratoplasty.

Purpose: To describe the outcomes and complications of repeat anterior lamellar keratoplasty (ALK) after a failed primary ALK.

Methods: This was a retrospective case series. Twenty-three eyes of 22 patients who underwent repeat ALK for optical indications from January 1, 1991, to December 31, 2017, were included.

Updates on the Surgical Management of Pediatric Glaucoma.

Childhood glaucoma is known to be one of the most challenging conditions to manage. Surgical management is more complicated than in adults because of differences in anatomy from adults along with variations in anatomy caused by congenital and developmental anomalies, wide-ranging pathogenetic mechanisms, a more aggressive healing response, and a less predictable postoperative course. Challenges in postoperative examination and management in less cooperative children and the longer life expectancies preempting the need for future surgeries and reinterventions are also contributing factors.

Ocular manifestations and the clinical course of carotid cavernous sinus fistulas in Asian patients.

Purpose: To study the clinical course with regard to both the angiographic and visual outcomes of carotid cavernous fistulas (CCFs).

Background: Carotid cavernous sinus fistulas (CCFs) are conditions which often present with ocular signs and symptoms. The clinical presentation of CCFs is varied according to the anatomy, haemodynamics and size of the CCF.

Syphilitic uveitis in a Singaporean population.

Purpose: To report the presentations of syphilitic uveitides in Singapore.

Methods: Retrospective noncomparative observational case series of 18 eyes from 12 patients with ocular syphilis between 2004 and 2009.

Results: Patients were mainly male (91.

Imaging late capsular bag distension syndrome: an anterior segment optical coherence tomography study.

Background: Anterior segment optical coherence tomography (ASOCT) was used to categorize and provide insights into the etiology of capsular bag distension syndrome (CBDS).

Methods: A prospective review was undertaken of 10 cases who presented with signs of late CBDS 5-11 years after uneventful phacoemulsification with in-the-bag posterior chamber intraocular lens implantation.

Results: All 10 patients presented with a milky collection within the distended capsular bag without raised intraocular pressure or a shallow anterior chamber.

Postoperative complications after glaucoma surgery for primary angle-closure glaucoma vs primary open-angle glaucoma.

Objectives: To investigate the incidence of postoperative complications arising in the first year after trabeculectomy and combined phacotrabeculectomy in eyes with primary angle-closure glaucoma (PACG) vs those with primary open-angle glaucoma (POAG).

Methods: This was a retrospective study of all glaucoma operations done at a Singapore hospital from January 9, 2001, to December 30, 2004. The types of glaucoma surgery included trabeculectomy and phacotrabeculectomy, all with mitomycin C or fluorouracil.

Intracameral fibrin tissue sealant as an adjunct in tectonic lamellar keratoplasty for large corneal perforations.

Purpose: To report a technique of intracameral injection of Tisseel fibrin sealant as an adjunct in the performance of tectonic deep anterior lamellar keratoplasty in cases with preexisting or intraoperative macroperforation.

Methods: Patients with corneal perforations up to 4 mm in greatest dimension first had the defect sealed externally with cyanoacrylate adhesive or fibrin sealant. An air bubble was injected into the anterior chamber (AC), followed by intracameral Tisseel fibrin sealant.

Bilateral uveitis secondary to bisphosphonate therapy.

Background/aims: To highlight the potential ocular side effects of bisphosphonate therapy and the importance of a proper drug history in patients who present with uveitis.

Methods: We report 2 cases of bilateral uveitis secondary to bisphosphonate therapy. Both patients were on nitrogen-containing bisphosphonates when they developed symptoms of bilateral anterior uveitis.