ISSN:0740-9303    

出版商:OVID    

年代:2002

数据来源: OVID

ISSN:0740-9303    

出版商:OVID    

年代:2002

数据来源: OVID

ISSN:0740-9303    

出版商:OVID    

年代:2002

数据来源: OVID

ISSN:0740-9303    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

PurposeTo determine the utility of CT imaging in identifying patients with dysthyroid optic neuropathy.MethodsOrbital CT scans of 12 randomly selected patients with dysthyroid optic neuropathy and 15 control subjects with Graves orbitopathy were retrospectively reviewed by two investigators blinded to the clinical data. The clinical diagnosis of optic neuropathy was made by one author before obtaining CT images and was based on clinical features.ResultsOptic nerve crowding (P<0.001) and intracranial fat prolapse (P<0.05) were the imaging features independently related to optic neuropathy. A muscle index greater than 50% had excellent sensitivity (100%) but did not have high specificity (47%) for dysthyroid optic neuropathy. Superior ophthalmic vein dilation and proptosis did not show significant relations with optic neuropathy.ConclusionsThis study suggests that patients with Graves orbitopathy who have severe optic nerve crowding, intracranial fat prolapse, and/or muscle index greater than 50% present on orbital CT scans are more likely to have coexisting optic neuropathy.

ISSN:0740-9303    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

PurposeTo investigate the Cynomolgus monkey eyelid as an experimental model for oculoplastic surgeryMethodsEyelid and periocular tissue were removed from Cynomolgus monkeys being euthanized. After fixation, the macroscopic and microscopic characteristics of the Cynomolgus monkey eyelid were studied.ResultsMacroscopic and microscopic characteristics of the Cynomolgus monkey eyelids were described. The Cynomolgus monkey eyelid bears resemblance to the human eyelid in its compartmentalization and complexity.ConclusionsThe Cynomolgus monkey eyelid is a suitable experimental research model. Its compartmentalization resembles that of the human eyelid both microscopically and macroscopically.

ISSN:0740-9303    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

PurposeCongenital upper lid colobomas may be associated with ocular and systemic anomalies. The ophthalmologist’s role involves both the diagnosis and management of their various ocular structural defects and management of the visual development.MethodsAll cases of congenital eyelid colobomas referred to the Singapore National Eye Centre between July 1992 and July 1995 were assessed for the extent of the eyelid defect, associated ocular anomalies, status of the cornea, and any systemic anomalies.ResultsFour infants were tested during this period. The mean follow-up was 25 months (range, 16 to 30 months). All required surgical correction of their eyelid defects before 2 years of age. The patients also had refractive errors requiring amblyopia management. Three of the babies also needed other surgical procedures.ConclusionsCongenital upper eyelid colobomas are a potential threat to vision at an early age and a significant cosmetic blemish later in life. Early surgical intervention is usually required when the defect is larger than one third of the eyelid margin. Close monitoring of the visual development of patients with congenital upper eyelid colobomas is also essential since the risk of amblyopia in these patients is high.

ISSN:0740-9303    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

PurposeTo study the ocular outcomes of facial burns over a 10-year period at the Alfred Hospital; in particular, to investigate the impact of 3 variables (grading of burn, use of prophylactic ocular surface lubrication, and timing of ophthalmologic referral) on the requirements for eyelid surgery.MethodsA retrospective review of patients admitted to the Alfred Hospital (from October 1990 to October 2000) after thermal burns with facial, eyelid, and ocular involvement.ResultsSixty-six patients were identified with facial burns involving the lids or eyes, having been admitted over a 10-year period. Of these 66, 7 died of complications of the burns and 12 required eye or eyelid surgery. Of those patients treated with prophylactic ocular surface lubrication, the rate of ocular surgery was 18.4% as opposed to 30% when no prophylaxis was used. The higher the percentage of total burn, the later the referral was made. Of those with severe eyelid burns, 100% had eyelid surgery and 50% of moderate burns had eyelid surgery. Sixty percent of moderate eyelid burns that required surgery did not receive prophylaxis. Thirty-four of 66 patients had acute corneal involvement, but only 3 eyes of 118 had long-term corneal morbidity.ConclusionsThe requirement for eyelid surgery was closely related to the severity of the eyelid burn. The presence of an acute corneal burn with epithelial loss was not a poor prognosticator. The use of prophylactic ocular surface lubrication may provide early corneal protection, thereby minimizing ulceration in patients who may otherwise have required surgery, especially in those with mild to moderate exposure. Prompt ophthalmologic examination and the early use of prophylactic ocular surface lubrication for the cornea are associated with less need for eyelid surgery in patients with moderate eyelid burns.

ISSN:0740-9303    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

PurposeTo report a series of moderate-sized lower eyelid defects repaired by combined flap repair in 6 patients. The combined flap marries a horizontal rotational and a temporal Z-plasty flap for repair of moderate-sized lower eyelid defects.MethodsSix case summaries are reported along with flap configuration and surgical technique.ResultsIn 6 patients over a 20-month period, the combined flap repair was successfully utilized for repair of moderate-sized lower eyelid defects.ConclusionsThe combined flap appears well suited to the overall anatomic configuration of the lower eyelid and lateral periorbital region.

ISSN:0740-9303    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

PurposeTo determine the role of vinyl polysiloxane impression material (trade name Reprosil) in endonasal dacryocystorhinostomy.MethodsCase series of 15 consecutive endonasal dacryocystorhinostomies in which vinyl polysiloxane material was used to mark and protect the nasolacrimal sac. Vinyl polysiloxane is mixed from two tubes, then immediately injected in the sac through a preplaced 21-gauge cannula. It is important to be sure the cannula is in the sac to avoid false injection and extravasation. We have found it best to inject a small amount, usually 0.2 to 0.3 mL.ResultsA patent osteum was successfully created in 13 of the 15 cases (87%). Complications included two cases of retained vinyl polysiloxane that necessitated removal through an external excision.ConclusionsEndonasal dacryocystorhinostomy has several advantages compared with the external approach. There is no external scar and the bruising and swelling are substantially reduced, allowing patients to return to work more quickly. In addition, the adjacent nasal anatomy is directly visualized, allowing for simultaneous treatment of any relevant nasal pathology and precise manipulation of the nasal tissues.

ISSN:0740-9303    

出版商:OVID    

年代:2002

数据来源: OVID