Background: Detaching a rectus muscle irreparably destroys its ciliary artery circulation which also supplies the anterior segment of the eye.
Purpose: To educate strabismus surgeons about a method of detaching a muscle without compromising anterior segment circulation.
Synopsis: A limbal based conjunctival incision is made. The muscle is identified, separated from its attachments and secured with 6-0 Vicryl. The anterior ciliary vessel supplying it is isolated by making a small snip incision in the muscle capsule with delicate blunt dissection parallel to the anterior ciliary artery The muscle is detached from its original insertion. The muscle is tied to sclera at the intended point of recession. The intact anterior ciliary artery, thus will continue to function, untouched.
Highlights: We recommend pre-placing the sutures in the muscle and also in the sclera at the point of reattachment to avoid possible stretching and breaking of anterior ciliary vessels at the time of muscle detachment and also to dissect the artery free from muscle several millimeters more than the intended recession in order to spare the anterior ciliary circulation in strabismus surgery.
Video Link: https://youtu.be/Bn050Ihu9rU.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9240547 | PMC |
http://dx.doi.org/10.4103/ijo.IJO_629_22 | DOI Listing |
BMJ Open Ophthalmol
January 2025
Department of Ophthalmology, Peking University People's Hospital, Beijing, China
Purpose: To develop an artificial intelligence algorithm to automatically identify the anterior segment structures and assess multiple parameters of primary angle closure disease (PACD) in ultrasound biomicroscopy (UBM) images.
Design: Development and validation of an artificial intelligence algorithm for UBM images.
Methods: 2339 UBM images from 592 subjects were collected for algorithm development.
Introduction: Cataract surgery has been reported to have a reducing effect on intraocular pressure (IOP) in glaucomatous and non-glaucomatous eyes. This effect seems to be more noticeable in eyes with narrow angles (NAs) than in eyes with open angles (OAs). Decrease in IOP may be a result of the increase in anterior chamber angle (ACA) and Schlemm canal (SC) after cataract surgery.
View Article and Find Full Text PDFCureus
January 2025
Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo, JPN.
Persistent hypotony following Tanito microhook trabeculotomy (TMH) is rare but may occur due to the development of cyclodialysis clefts. We report a case of a Japanese man in his 40s who developed persistent hypotony and hypotony maculopathy after TMH in the left eye. Fourteen months after the surgery, the patient was referred to our institution due to prolonged hypotony that remained undiagnosed and untreated despite evaluations with gonioscopy and anterior segment optical coherence tomography (AS-OCT) at the referring clinic.
View Article and Find Full Text PDFBMC Ophthalmol
January 2025
Department of Ophthalmology, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, 233004, China.
Objectives: To evaluate the effects of short-acting cycloplegic agents, tropicamide and compound tropicamide, on ocular biological parameters and choroid thickness.
Methods: In this study, seventy pediatric subjects aged 6 to 13 years were randomly assigned to two groups: the tropicamide group and compound tropicamide group. Ocular biological parameters and choroidal thickness (CT) and subfoveal choroid thickness (SFCT) were measured in both groups and were retested 40 min after drug administration.
Clin Neurol Neurosurg
January 2025
Department of Ophthalmology, University Hospitals Leuven, Leuven, Belgium; Department of Neurosciences, Catholic University Leuven, Leuven, Belgium. Electronic address:
Objective: Surgeons routinely check the pupils to assess, in part, the brain stem function and the neural integrity of the visual system. Where a relative afferent pupillary defect is difficult to notice during surgery, an efferent pupillary defect or mydriasis is clearly recognizable. Visual loss in orbital surgery is attributed to compromised perfusion of the optic nerve, retina, or choroid, but an association with mydriasis is generally not assumed.
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