CT检查在眼外伤中的临床应用价值

目的探讨cT检查在眼外伤中临床应用价值。方法回顾分析52例（84眼）急诊眼外伤的CT检查资料。结果52例（84眼）CT检查均发现异常,包括眶内异物、眼内异物、眶骨骨折、眶内软组织伤、晶状体脱位、晶状体脱出、眼球变形和复合性损伤等。结论CT是眼外伤的首选检查方法,可为临床诊断和手术提供重要依据。     

Missed intraocular foreign body masquerading as intraocular inflammation: two cases

To report two cases with missed intraocular foreign body masquerading as intraocular inflammation. The first patient was referred to our clinic with a diagnosis of a traumatic cataract. She had a history of ocular trauma. The clinical examination revealed intraocular inflammation and a mature cataract. Plain X-ray did not reveal a foreign body. She underwent a successful cataract surgery and intraocular lens implantation 1 month after the initial examination. Two months after the surgery she returned with visual impairment and intraocular inflammation. The foreign body was discovered on the surface of the iris during the follow-up. The second patient was referred to us for endophthalmitis. He denied ocular trauma. Plain X-ray, computerized tomography, and ultrasonography did not show a foreign body, but because of clinical suspicion, surgery was scheduled. In both patients the intraocular foreign bodies in the anterior chamber were removed successfully by a limbal approach. The patients remained symptom free after the foreign bodies were removed. The intraocular inflammation did not persist. A history of ocular trauma, unexplained intraocular inflammation, or intraocular inflammation unresponsive to the standard therapies should alert the physician to the presence of an intraocular foreign body. Further investigations should be performed in these cases to detect the foreign body.     

A metallic foreign body presenting in the anterior chamber angle.

PURPOSE: This article describes a case in which a patient presented with a previously undetected metallic foreign body in the anterior chamber angle. METHODS AND RESULTS: A 42-year-old Hispanic man presented with a 5-day history of foreign-body sensation and redness in his left eye. He had been using a hand saw without safety glasses 2 days before the onset of his initial symptoms. Physical examination revealed a metallic foreign body embedded in the inferior angle of his left eye. Surgical removal of the foreign body was performed, and the patient remains well 1 year after surgery. CONCLUSIONS: All physicians should maintain a high degree of clinical suspicion for intraocular foreign bodies when presented with a patient who may have sustained ocular trauma. All eye-care providers need to emphasize the need for proper eye protection to patients who engage in high risk activities that may lead to penetrating ocular trauma.     

玻璃体切割术治疗严重眼外伤的疗效观察

目的:观察玻璃体切割术治疗严重眼外伤的疗效。方法:分析我院自2005年以来收治的严重眼外伤患者38例38眼,其中钝挫伤5眼,眼球破裂伤27眼,眼内异物6眼,全部患者均经睫状体平坦部行闭合式巩膜三通道玻璃体切割术,其中全部联合行视网膜光凝术38眼,联合硅油填充术30眼,行C3F8注气术8眼,联合巩膜外环扎术15眼。结果:术后随访6mo～2a,38例患者眼球萎缩仅2例,视力无提高5例,其余31例术后视力均较术前提高,其中1例术前无光感,术后出现光感。结论:玻璃体切割术治疗严重眼外伤效果明显。     

Indirect traumatic rupture of the globe without conjunctival injury

BACKGROUND: Blunt injuries are frequent causes of ocular trauma. Rupture of the globe without conjunctival injury following ocular contusions may be as dangerous as ruptures with opened conjunctiva, but is much more difficult to diagnose. PATIENTS AND METHODS: Retrospective analysis of 13 inpatients of the University Ophthalmological Hospital in 1991-1995 with rupture of the globe but without conjunctival injury following ocular contusion. These were 5 % of all the patients with through-through injuries of the eye wall. RESULTS: The characteristic finding in all 13 patients has been hyposphagma, hyphema, vitreal haemorrhage and loss of visual acuity to "finger counting" or less. At the time of the first examination, in 6 of the 13 patients intraocular pressure was between 3 mm Hg and 16 mm Hg. One patient had had an initial pressure of 3 mm Hg, but at the time of surgery, the eye had a stable normalized pressure. Postoperatively three of the 13 patients attained final visual acuities between 80/200 and 140/200 after at least 6 months, the remaining patients achieved not more than 5/200. CONCLUSION: In patients after blunt eye trauma rupture of the globe may occur in patients without damaging the conjunctiva and with normalised intraocular pressure. In such cases with intraocular bleeding and loss of vision it may be essential to open the conjunctiva and explore the sclera in order to be sure that there has not been a rupture of the sclera and to have the opportunity to perform pars-plana vitrectomy in time.     

A Case of an Asymptomatic Intralenticular Foreign Body

The purpose of this article is to report a case of an asymptomatic intralenticular metallic foreign body that was retained for 6 months. A 66-year-old male visited our ophthalmology department because of decreased visual acuity in his left eye 6 months after he suffered ocular trauma while mowing. He had not been treated because he did not experience any discomfort. His corrected visual acuity was 0.4. Central corneal opacity, an intralenticular metallic foreign body, and an intact posterior capsule were observed on slit lamp examination. Phacoemulsification with posterior chamber lens implantation and simultaneous removal of the intralenticular foreign body was performed. Seventeen days after the operation, his corrected visual acuity was 1.0, the intraocular lens was well-seated, and there was no intraocular inflammation. In this case report, a patient was found to have an intralenticular metallic foreign body retained for 6 months. During this time he did not experience any ocular dysfunction due to the foreign body. Mowing accidents are common in Korea. Despite the absence of symptoms, patients reporting a history of lawn mowing should be thoroughly examined.     

Orbital helical computed tomography in the diagnosis and management of eye trauma

OBJECTIVE: To prospectively determine the accuracy of helical computed tomography (CT) and multiplanar reconstruction and its value in surgical planning for the management of ocular trauma with suspected intraocular and orbital foreign bodies using surgical and clinical follow-up findings as the gold standard. DESIGN: Prospective, observational case series. PARTICIPANTS: Thirty-six patients with ocular trauma and suspected foreign bodies were studied. INTERVENTION: All patients were examined using a standardized scanning protocol with helical CT direct scanning in the axial plane and multiplanar reconstruction of coronal and sagittal planes. MAIN OUTCOME MEASURES: The images were analyzed for the presence and number of intraocular and orbital foreign bodies, anatomic location, and foreign body size. The surgical and clinical follow-up findings (contact lens examination, gonioscopy, indirect ophthalmoscopy and scleral depression, perimetry, color testing, measurement of size) were used as the gold standard to which the image results were compared. RESULTS: Helical CT showed a single intraocular foreign body in 14 patients, a single orbital foreign body in 9 patients, and multiple orbital foreign bodies in 2 patients. Intraocular or orbital foreign bodies were excluded in 11 patients. Twenty foreign bodies were correlated with surgical results. Surgical and clinical follow-up findings were in agreement with helical CT results regarding the detection and determination of the number of presumed foreign bodies. Localization to intraocular versus orbital compartment and proximity to the optic nerve was accurate in all patients. Determination of size of the foreign bodies on the helical CT images was reliable and repeatable. CONCLUSIONS: Helical CT axial scanning with multiplanar reconstruction is accurate at detecting and localizing intraocular and orbital metallic, glass, and stone foreign bodies. This imaging method aids the surgeon in choosing the surgical approach to retained intraocular and orbital foreign bodies.     

Verzögerte Visusminderung nach Hammer-Meißel-Verletzung

Eye injuries caused by foreign bodies are a common diagnosis in many patients with an ocular emergency. A high percentage of foreign bodies are located in the cornea and are easily removed, but an intralenticular foreign body after eye injury is very rare. A 28-year-old man referred to our department with increasing loss of vision in the right eye 1 month after an accident with a hammer and chisel. At the time of admission the patient complained of a significant loss of vision and a traumatic cataract was diagnosed. The examination showed a deep stromal corneal scar and an anterior subcapsular cataract with posterior contusional rosette. Slit-lamp examination in mydriasis aroused the suspicion of an intralenticular foreign body. An X-ray examination of the right orbit was performed, but apart from a shadow, which was interpreted by the radiologists as a “pixel artefact”, it revealed no presence of a foreign body. A computed tomography examination was also undertaken and confirmed the suspicion of an intralenticular foreign body, which was confirmed by an ultrasound scan. The intralenticular foreign body was removed during cataract surgery and an IOL was successfully implanted in the intact capsular bay. The day after the surgical intervention BCVA was 1.0. Every ocular trauma with a foreign body should be examined in mydriasis in order to exclude an intralenticular foreign body. Conventional X-ray images may not always be efficient enough to detect a foreign body. If an intraocular foreign body is suspected a thin-slice computed tomography examination of the orbit should be performed.     

眼外伤所致继发性青光眼临床分析

目的:探讨眼外伤的发生、治疗、转归以及眼外伤继发青光眼的发生、治疗及预后。方法:对305例眼外伤患者的致病因素、外伤部位、外伤类型进行分析,并对眼外伤患者进行随访,分析眼外伤继发青光眼的发生率。通过对眼外伤继发青光眼的药物及手术治疗,分析继发性青光眼的预后。结果:眼外伤部位、类型与眼外伤个体病因有关,病因以异物致伤最常见,外伤类型以角膜、巩膜穿孔伤最常见;眼外伤患者经治疗后视力均有不同程度的好转;眼外伤治疗后继发性青光眼的发生率高(10.82%),经药物和手术治疗,患者眼压均有不同程度的下降。结论:眼外伤病因、类型多样,应根据患者情况进行个体化治疗。对于存在易引起眼外伤的职业应该加强职业保护,做好眼防护。眼外伤治疗后继发性青光眼的发生率高,应尽早检查诊治以减少远期视力损害。     

Perfluoro-n-octane in orbital cavity after posterior vitrectomy and suture of eye perforating injury: case report

A case of a perfluoro-n-octane leakage into the orbital cavity after corneoscleral suture, scleral buckling and pars plana vitrectomy in an eye with perforating injury after trauma is reported for the first time. A previously healthy 39-year-old man was sent for ophthalmic evaluation one day after suffering a penetrating ocular trauma in his right eye while hammering a nail. On the initial evaluation, the patient presented sudden reduction of visual acuity on his right eye with a perforating corneoscleral injury, intraocular foreign body and retinal detachment. The patient was submitted to corneoscleral suture, pars plana vitrectomy with perfluoro-n-octane administration to flatten the retina and scleral buckling, when it was found transfixation of the globe by the intraocular foreign body. Postoperatively, computed tomography scans of the orbit were ordered due to proptosis, which showed the presence of hyperdense images, suggesting leakage of perfluoro-n-octane into the orbital cavity. Thus, in cases of perforating eye injury, one should be suspicious about the possibility of intraocular foreign body, as well as possible occurrence of transfixation of the globe when scheduling the surgery.     

A case of Pantoea endophthalmitis

A previously healthy 50-year-old man was transferred to our hospital for evaluation of acute inflammation in his right eye after ocular trauma while using a grass mower. Slit lamp examination showed 1 mm-length full thickness corneal laceration without leakage, 4+ cells and inflammatory membrane in the anterior chamber, 10% hypopyon, posterior synechiae formation, and cataract change. Upon orbital computerized tomography, a metallic intraocular foreign body in the lens was identified. Vitrectomy, phacoemulsification, foreign body removal, anterior chamber irrigation, and intravitreal antibiotics injections of vancomycin and ceftazidime were performed. In a culture of humor from the anterior chamber grew Pantoea species. More procedures were performed, including intravitreal antibiotics injection of ceftazidime. Upon administering a course of intravenous ceftazidime, fortified ceftazidime and moxifloxacin eye drops, and oral prednisolone, the patient improved.     

Penetrating eye injury from a rigid infant pacifier

Background: The use of infant pacifiers (dummies) is common in Australasian communities and has been reported to be associated with various injuries, but to date ocular trauma has not been reported.
Case report: A 14-month-old child sustained a penetrating eye injury from the infant pacifier that was in his mouth during a minor fall. Only a lid laceration was detected at the time. One week later he presented with mydriasis, heterochromia and a poor red reflex. Diagnosis of a penetrating eye injury was made by examination under anaesthesia, with B-scan ultrasonography demonstrating hypotony but no retinal detachment or intraocular foreign body. Funduscopy revealed a small inferior vitreous haemorrhage. Exploration of the globe adjacent to the lid wound showed a 6 mm laceration through the sclera plugged with prolapsed vitreous.
Conclusion: Serious ocular injury may result after a minor fall with some designs of rigid infant pacifiers. Heterochromia and anisocoria noted by the mother heralded more serious ocular injury in this case. The delay in diagnosis of this injury emphasises the importance of ocular examination to exclude eye trauma when injuries occur around the orbit.     

Latent proliferative sickle cell retinopathy in sickle cell trait

PURPOSE: To describe a patient with sickle cell trait who developed latent proliferative sickle cell retinopathy after mild blunt trauma. METHOD: Case Report. A 20-year-old man with unilateral Stage 3 sickle retinopathy associated with an ischaemic ridge presenting three years after the initial mild blunt ocular trauma. RESULTS: Fundus examination of the left eye showed an ischaemic ridge delineating avascular from vascular retina. Fluorescein angiography of the left eye showed an avascular peripheral retina and multiple sea fan neovascularization. Blood studies showed him to be Hb AS. CONCLUSIONS: In our patient the proliferative changes were the result of his initial mild trauma associated with an increase in the intraocular pressure. The latent development of the sea-fan neovascularization associated with an ischaemic ridge is unusual. Advice about potential complications to patients with Hb AS after ocular trauma is advocated.     

Mature cataract and lens-induced glaucoma associated with an asymptomatic intralenticular foreign body

We report a case of mature cataract and lens-induced glaucoma associated with an asymptomatic intralenticular foreign body. At initial presentation, the patient had no definite history of ocular trauma. During cataract surgery, a metallic intralenticular foreign body was expressed with hydrodissection and easily removed with intraocular forceps. Postoperative visual acuity, ocular status, and electroretinographic findings indicated that the crystalline lens served as a natural barrier to irreversible intraocular toxicity.     

Short‐ and long‐term vertical diplopia secondary to blunt trauma

This report describes the short‐ and long‐term ocular signs and symptoms of a patient with an orbital blow‐out fracture and discusses the differential diagnosis of vertical diplopia. A blow‐out fracture occurs when blunt trauma is applied either directly to the eyeball itself or the orbital rim and usually results in a fracture of the orbital floor with consequential excavation and entrapment of orbital contents in the fracture. Vertical diplopia is a common presenting symptom for a blow‐out fracture of the orbit but careful considerations should be given to other potential conditions leading to such diplopia. A patient is presented who suffered a blow‐out fracture almost a decade earlier, secondary to blunt trauma to the globe. The clinical findings are provided immediately after the trauma, post‐surgery and during a recent ocular examination.     

后入路玻璃体切割术治疗眼球贯通伤伴球内异物

目的:探索早期后入路玻璃体切割术治疗眼球贯通伤伴球内异物的有效性.方法:近2a来我院急诊收治的10例10眼眼球贯通伤伴球内异物患者,急诊行玻璃体切割+眼内异物取出+硅油填充术,术后给予积极预防感染、消炎处理,根据伤道周围视网膜生长情况补充视网膜光凝.结果:患者1眼因化脓性眼内炎、术中视网膜脉络膜损毁严重视网膜未能复位,最终眼球萎缩,患者9眼成功施行玻璃体切割手术,取出异物,随诊时间3~18mo,其中2例患者因复发性视网膜脱离行二次玻切硅油置换手术,其余患者视网膜复位良好,无再出血,眼压维持8~21mmHg;最后一次随访时患者3眼最佳矫正视力>0.1,2眼矫正视力0.01~0.1,患者4眼因后极部脉络膜视网膜损伤严重矫正视力光感~指数/50cm,眼球萎缩患者视力无光感.结论:早期后入路玻璃体切割、异物取出联合硅油填充术为一种有效地治疗眼球贯通伤伴球内异物的手术治疗方法.     

Pupillary capture of implantable contact lens after blunt trauma

A 33-year-old woman visited our clinic with blurry vision and periorbital swelling after experiencing blunt trauma to left eye. Ten months earlier, she had implantable contact lens (ICL) implantation in the left eye. Biomicroscopic examination showed that that 1 footplate of the ICL was entrapped in the pupillary aperture at the 7 o'clock position and the ICL was placed vertically. The patient had limited ocular movement in lateral gaze, and the computed tomography showed a medial orbital wall fracture. Pupillary capture of the ICL was surgically corrected with an iris manipulator under topical anesthesia. After the ICL was repositioned, the patient's uncorrected visual acuity was restored to 20/32, as before the injury. Pupillary capture of the ICL may occur after blunt ocular trauma.     

A case of retained wooden foreign body in orbit

A 41-year-old man visited our clinic complaining of esodeviation of the right eye. He had been operated on for corneal laceration 3 years before. One month later, exodeviation of the right eye had developed. The result of computed tomography (CT) was reported as orbital abscess and cellulitis. Although antibiotic treatment was administered for 2 weeks, the exodeviation didn't improve. On ocular examinations performed in our hospital in November-2001, his right eye was esotropic and had a relative afferent pupillary defect. Vision of the right eye was decreased to 0.02. Fundus examination showed optic atrophy. A new CT scan disclosed a foreign body introduced into the right medial orbital wall, nasal cavity and ethmoidal sinus. Although foreign body was surgically removed, vision and eye movement were not improved. In the case of a patient who has undergone orbital trauma, complete history taking and physical examinations must be performed. On suspicion of a foreign body, imaging study such as CT or MRI must be performed. However, because CT findings can be variable, careful follow-up is needed.     

Long-term results after epilenticular intraocular lens implantation following traumatic cataract

BACKGROUND: The purpose of this study was to analyze the late postoperative outcome and complication rate after lensectomy with primary epilenticular intraocular lens (IOL) implantation for traumatic cataract. Material and Methods: We retrospectively reviewed the data of 11 patients who were operated on for traumatic cataract after penetrating or blunt ocular trauma between 1997 and 2002. One patient developed cataract due to a large rupture of the posterior capsule after blunt trauma. Ten patients sustained a penetrating ocular injury with (7 eyes) or without (3 eyes) intraocular foreign body (IOFB). In all patients the IOL was implanted at the beginning of the operation into the ciliary sulcus in front of the opaque lens followed by pars-plana lensectomy and vitrectomy. RESULTS: The mean follow-up was 27.4 months. Eight eyes (72.7 %) achieved a final visual acuity of 0.5 or better. Major causes of limited visual acuity were central corneal scars causing irregular astigmatism. In all patients the IOL was safely and easily implanted into the ciliary sulcus. During the subsequent pars-plana lensectomy and vitrectomy as well as during the follow-up period all IOLs remained anatomically stable and well centered. In one patient PVR retinal detachment had to be treated by pars-plana vitrectomy with silicone oil tamponade. CONCLUSIONS: Epilenticular IOL implantation followed by pars-plana lensectomy is an easy and safe method to treat traumatic cataract in the setting of penetrating ocular trauma repair. It is associated with a favorable visual outcome and a low rate of postoperative complications.     

Delayed trigeminocardiac reflex induced by an intraorbital foreign body. Case report

OBJECTIVE: To emphasize the importance of the mechanism and surgical approach to trigeminocardiac reflex (TCR) developing 48 h after orbital trauma due to a foreign body. CASE REPORT: After gunshot injury of a 17-year-old male patient, computerized tomography evaluation revealed a right globe perforation and an intraorbital metallic foreign body in the right orbita adjacent to the lateral wall. The ocular perforation was repaired, but the foreign body was not removed. Constant bradycardia (45/min) developed 48 h after the operation. Since there were no cardiological findings, a temporary cardiac pacemaker was inserted and on the 6th postoperative day, the foreign body was removed through orbitolateral approach. After the removal of the foreign body, bradycardia completely recovered. CONCLUSION: In the presence of an intraorbital foreign body accompanied by globe perforation, TCR may develop 48 h after the trauma and insertion of a temporary pacemaker may be required to control the cardiac rhythm. In this paper, the delayed TCR complication presented an indication for the removal of the intraorbital foreign body.