Fig 2 - available from: BMC Ophthalmology
This content is subject to copyright. Terms and conditions apply.
ocular ultrasound-a V-shaped membrane attached to the optic nerve head, indicative of a total retinal detachment
Source publication
Background
Ocular contusion can produce severe lesions, which if not treated appropriately and promptly, can lead to visual impairment. Ocular contusion in childhood may not be reported by children. Case presentationA 27 year old female presented with a partially absorbed cataractous lens that was dislocated into the anterior chamber of her left ey...
Context in source publication
Context 1
... retinal tear at the equator between the 2 O'clock and 3 O'clock meridians were observed on three-mirror contact lens examination. Retinal examination was nor- mal for the right eye. On grey-scale ultrasound, the de- tached retina was seen as an echogenic V-shaped membrane extending from the optic disc into the anter- ior part of the vitreous (Fig. 2). Fine hyper-echogenic particles were present in the vitreous, indicative of vitre- ous haemorrhage. Histology of the extracted material from the anterior chamber revealed an amorphous fibrous calcified tissue (Fig. ...
Similar publications
Angle-closure glaucoma is a major cause of irreversible visual impairment and can be identified by measuring the anterior chamber angle (ACA) of the eye. The ACA can be viewed clearly through anterior segment optical coherence tomography (AS-OCT), but the imaging characteristics and the shapes and locations of major ocular structures can vary signi...
Abstract
Background: While pro-poor economic activities have provided employment to
poor and vulnerable groups in a number of African countries, some of the
activities expose those involved to occupational hazards but these hazards are
rarely discussed. One of such activities is oil palm kernel processing with its
associated exposure to heat with c...
Purpose
We investigate visual function impairment and ocular structure in patients with unilateral posterior lens opacity, a type of congenital cataract (CC) in our novel CC category system.
Methods
We studied patients aged 3 to 15 years who were diagnosed with unilateral posterior CC. Best corrected visual acuity (BCVA) and visual evoked potentia...
Citations
... The absorbed cataractous lens can either be spontaneous without any cause or secondary such as associated with ocular injury or with conditions like maternal rubella, leptospirosis, uveitis, persistent hyperplastic primary vitreous, Hallerman Streif-Francois syndrome, and Down's syndrome. [1][2][3][4][5] The absorption mechanism of the lens is believed to be multifactorial. [5] Surgical management becomes challenging in such cases due to the anatomic disorganization of the absorbed lens. ...
Absorption of a natural crystalline lens is very rare. It can be spontaneous or secondary due to ocular trauma or associated with multiple ocular and systemic conditions. In common perception, absorbed cataracts are considered difficult to manage surgically and are associated with poor surgical outcomes. Further, such cataract is rarely encountered in day-to-day clinical practice. Here, we report a case series of absorbed cataracts due to different etiologies managed surgically based on a thorough preoperative evaluation that led to good visual outcomes.
... In addition to ocular trauma, spontaneous absorption of lens material has been reported in patients with congenital rubella infection of the eye, uveitis, and Morgagnian cataract. However, the exact mechanism by which cataracts spontaneously dissolve is unlikely to be identical in all patients [6][7][8]. The patient in this study is believed to be born with an ocular infection complicated with amblyopia, and as a result of the illness, he had been left with an unsightly left eye since. ...
Soemmering's ring and spontaneous lens absorption are two distinct conditions that are uncommon and unlikely to occur simultaneously. We report a case of a 67-year-old man who presented with blurred vision in his left eye and has had poor eyesight since birth. His right and left eye visual acuities were 6/7.5 and hand movement (HM), respectively. There was no relative afferent pupillary defect (RAPD). The right eye’s examination was unremarkable. The left eye revealed a spontaneous rupture of the anterior lens capsule with partially absorbed lens material and the presence of Soemmering's ring. There was no evidence of phacodonesis. The left fundus appeared slightly hazy, while the retina appeared flat. Extraction of the left eye lens was performed for the patient, and he was left aphakic.
In this case, the patient's Soemmering's ring was linked to the ruptured anterior lens capsule followed by spontaneous partial absorption of lens material, which caused deposition of residual lens filaments near the equator of the capsule sac. In addition to ocular trauma, patients with congenital rubella infection of the eye, uveitis, and Morgagnian cataract have reported spontaneous absorption of lens material. The exact mechanism by which cataracts dissolve spontaneously is unlikely to be the same in all patients. This patient who has had an unsightly left eye since birth is presumed to have been born with an ocular infection complicated by amblyopia. The presence of both the Soemmering's ring and spontaneous lens absorption is unusual in this case. Early attention to the precious fellow eye is critical to ensure that the other unaffected eye maintains an adequate vision and allows independent patient mobility.
A 29-year-old male presented with longstanding, stable, unilateral vision loss in the setting of a remote paintball injury. His exam was notable for a large sensory exotropia as well as multiple foci of posterior synechiae, segments of white lenticular material and islands of lenticular cells within a grossly intact capsule, and severe zonular compromise in the affected eye. The patient was diagnosed with post-traumatic lens absorption and underwent synechialysis, capsulotomy, excision of remnant lenticular material, and placement of a sulcus lens. Our report uniquely highlights the identification of a Soemmering’s ring in an absorbed lens in the presence of an intact anterior capsule. Furthermore, it highlights a successful refractive and sensorimotor outcome following surgical repair despite delay in treatment for many years.
We report a case of spontaneous cataract absorption over a period of 19 weeks in a 5-week-old boy with trisomy 21. Ultrasound biomicroscopy images at 5 and 24 weeks of age showed that 71% of the initial lens thickness was absorbed during this period. At surgery, the lens thickness was 0.92 mm in the right eye and 0.91 mm in the left eye. Uncomplicated cataract extraction was performed. Trypan blue staining revealed an area of possible lens leakage through the anterior lens capsule in the left eye, suggesting a mechanism for cataract absorption.
