首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
2.
The human retina, as transducer of light energy, is especially exposed to light toxicity. Solar maculopathy has been the only form of photic maculopathy for millennia, often secondary to the observation of an eclipse. During the last century, technological advances have led to the appearance of new forms of photic maculopathy, related to the exposure to new forms of artificial light, such as welding devices and lasers. In recent years, the general use of laser pointers has led to an upturn in interest in this pathology. The aim of this review is to offer an integrated view of the different types of photic maculopathy. Due to the extension of this topic, the review is presented divided into two parts. In this first part solar maculopathy and welding arc maculopathy are presented.  相似文献   

3.
The human retina, as transducer of light energy, is especially exposed to light toxicity. Solar maculopathy has been the only form of photic maculopathy for millennia, often secondary to the observation of an eclipse. During the last century, technological advances have led to the appearance of new forms of photic maculopathy, related to the exposure to new forms of artificial light, such as welding devices and lasers. In recent years the general use of laser pointers has led to an upturn in interest in this pathology. The aim of this review is to offer an integrated view of the different types of photic maculopathy. Due to the extension of the topic, the review is presented divided into 2 parts. In this second part, atomic bomb maculopathy, laser maculopathy, iatrogenic forms of photic maculopathy, and foveomacular retinitis are presented.  相似文献   

4.

Case report

A 36-year-old man went to the emergency department the day after exposure to a laser pointer. Funduscopy revealed dispersed macular pigment alterations, and optical coherence tomography showed a disruption of the retinal layers. The visual acuity was counting fingers in both eyes. Nine months later, optical coherence tomography angiography showed a rarefaction in the choriocapillaris vascular flow in the area of the laser injuries.

Discussion

The retinal layer mainly damaged by the laser injury was the retinal pigment epithelium. However, it is suggested that the laser injury could involve tissues beyond the retinal pigment epithelium, since a rarefaction of the choriocapillaris was found after exposure to the laser.  相似文献   

5.
6.
A 4 year-old boy with no previous history of eye or nasolacrimal disease was referred due to a painful mass on his left inner canthus, of 3 days onset, with no improvement in spite of oral antibiotics. On examination eyelid oedema with periocular hyperaemia was noted. Lacrimal sac palpation was painful and tonsillar exudation was reported. He was admitted and started on intravenous antibiotics. Four days later, lacrimal signs started to improve, but his general condition become worse. Head and neck computed tomography scan showed a left lacrimal sac enlargement, suggestive of acute dacryocystitis and swollen laterocervical lymph nodes. Epstein Barr virus (EBV) serology and PCR testing were positive. The child responded well after 8 days, and was discharged with oral antibiotics. Acute dacryocystic retention associated with EBV was suspected. Six months later, the patient remained asymptomatic with no tearing or other lacrimal symptoms.  相似文献   

7.
Bleb-related endophthalmitis is rare and appears months or years after surgery. The causative agents are usually streptococci or gram-negative bacteria.There are few cases in the literature of endophthalmitis caused by Moraxella nonliquefaciens, and most are delayed-onset associated with blebitis after glaucoma filtration surgery.The case is presented of a 90-year-old patient with endophthalmitis in the right eye due to Moraxella nonliquefaciens associated with blebitis 10 years after glaucoma surgery. After treatment, disappearance of blebitis is observed 2 weeks later and resolution of vitritis 29 days later, with recovery of vision to previous values (20/200).Endophthalmitis due to Moraxella nonliquefaciens is rare, and is associated with late onset blebitis after glaucoma filtration surgery. Despite the virulence of the clinical symptoms, the visual prognosis is usually favourable.  相似文献   

8.
9.
10.
Case reportA 56 year old woman with atrial myxoma presented with a visual acuity of no light perception after acute ophthalmic artery obstruction (OAO) associated with stroke. She developed late retinal pigmentary changes due choroidal infarction, typical of the OAO.DiscussionSimultaneous obstruction of the retinal and choroidal circulation was observed in the OAO. Atrial myxoma should be suspected in patients who suffer from OAO associated with stroke. Systemic studies should be performed to find the origin of OAO.  相似文献   

11.
PurposeTo assess the perception of strabismus surgeons in Spain regarding patient satisfaction after surgery, by analysing the types of strabismus with the most satisfied patients, as well as the causes of dissatisfaction.MethodsA survey was carried out among the members of the Spanish Strabology Society who were over 50 years of age, active in Spain, with more than 20 years of surgical experience, and whose main surgical activity was strabismus. The questionnaire consisted of 18 questions about the perception of patient satisfaction according to the type of strabismus, patient age, as well as the most frequent cause of dissatisfaction after surgery.ResultsThe questionnaires were completed by a total of 29 surgeons, with a mean of 31 years of surgical experience. The most frequent cause of perceived dissatisfaction was residual strabismus. No differences were found in the satisfaction index between children and adults. The surgery that was considered to produce greater satisfaction was endotropia, followed by decompensated 4 th nerve palsy, and exotropia, while 3 rd nerve palsy was the cause of the most dissatisfaction.ConclusionsAccording to strabismus surgeons, endotropia is the most satisfactory surgery for the patient, followed by exotropia, vertical strabismus, and traumatic paralysis of the 4 th cranial nerve.  相似文献   

12.
PurposeTo report, for the first time, the clinical outcomes and patient satisfaction of laser refractive surgery performed by a trainee during a corneal and refractive surgery fellowship program in Latin America.MethodsThis prospective and interventionist study reviewed the clinical charts of the first 100 consecutive refractive surgery cases performed by a single Cornea Fellowship trainee between March 2018 and June 2018 in the Blindness Prevention Association of Mexico (Asociación para Evitar la Ceguera en Mexico). Femtosecond LASIK was performed in all eyes. Visual and refractive outcomes were evaluated during the first year of follow-up. Patient satisfaction was measured using 5 author-created questions 6 months after surgery.ResultsData of 100 eyes of 50 consecutive patients were evaluated. One year after the surgery, mean uncorrected distance visual acuity (UDVA) was 0.01 logMAR. Spherical equivalent error passed from –3.91 ± 2.28 D preoperatively to –0.22 ± 0.28 D. No eyes lost lines in corrected distance visual acuity (CDVA). Manifest refraction maintained stable during the first year after surgery. The five author-created questions revealed a high level of confidence and patient satisfaction.ConclusionsFemto-LASIK performed by a corneal and refractive surgery fellowship trainee showed good refractive and visual outcomes, as well as high patient satisfaction and confidence in a refractive surgery centre in Latin America.  相似文献   

13.
Small-cell lung cancer may directly affect the eye by metastatic proliferation or indirectly by paraneoplastic syndromes. The choroid is the most common site for uveal metastasis (90%); however, the iris can be involved in a smaller proportion of cases (incidence <10%). Blurred vision, pain, redness, photophobia, glaucoma, hyphema and visual field defects can arise from this metastatic involvement. The median survival time for patients with iris metastasis is reported to be 4 months. Secondary glaucoma can be managed with topical and oral treatment, transscleral cyclophotocoagulation, laser trabeculoplasty, anti-VEGF, minimally invasive glaucoma surgery (MIGS), filtering surgery, shunting surgery or enucleation. A case of primary small-cell lung cancer with iris metastasis is presented. The metastases produced an angle-closure glaucoma, which was refractory to topical treatment. Local radiotherapy was administered, obtaining a good local response.  相似文献   

14.

Case report

A 40-year-old woman diagnosed with Zika virus infection 6 months before she arrived at this hospital. She referred to a progressive and painless vision loss, of 2 weeks onset after the infection diagnosis. She was treated with topical steroids. Previous visual acuity was recovered, but she still refers to reduced visual field and nyctalopia. Ophthalmologic examination revealed severe retinal sequels, compatible with autoimmune retinopathy. Based on the clinical features and the temporal relationship with Zika virus infection, non-para-neoplastic autoimmune retinopathy was diagnosed and managed with steroids and infliximab.

Discussion

Zika virus can trigger a non-para-neoplastic autoimmune retinopathy. The diagnosis is based on clinical features, and requires early immunosuppressive therapy.  相似文献   

15.
16.
17.
18.
19.
Foster-Kennedy syndrome has been diagnosed as a direct compression of the optic nerve due to an expansive process that leads to atrophy. In the contralateral eye there is papillary oedema due to intracranial hypertension secondary to the tumour mass effect.The case is presented of a 12-year-old boy with overweight (BMI 26) with right eye papillary oedema and left optic nerve atrophy, that was casually found in an ophthalmological examination. He had no other symptomatology or personal medical history. The neurological examination was normal, and the urgent cranial computed tomography showed no masses. Lumbar puncture was performed with increased cerebrospinal fluid outflow resistance (28 cm H2O). The rest of studies were normal.Until the appearance of neuroimaging, it was believed that Foster-Kennedy syndrome was pathognomonic of intracranial mass in the frontal area. Pseudo-Foster Kennedy syndrome due to idiopathic intracranial hypertension is very rare, and in the few cases that have been reported in the literature, up to 25% of them are asymptomatic.  相似文献   

20.
PurposeTo study the relationship between refraction after cataract surgery and the use of spectacles in patients older than 65 years.MethodsRetrospective case control study. The study included 40 retired subjects older than 65 years-old who fulfilled our inclusion criteria. Clinical ophthalmic and optical information was collected, and patients were requested to complete a validated questionnaire of visual function (VF14) and a test of independence of spectacles. The difference between VF14 test results with and without glasses (difVF14) was calculated.ResultsThe study included 16 men and 24 women, with a mean age of 74 years. There was a significant correlation between difVF14 and postoperative refraction, with lower difVF14 values associated with postsurgical refraction in the range ?0.50 to ?1.00 D (OD 0.479 [95% CI; 0.286-0.804]). The questionnaire of independency of lenses did not show significant correlation with postoperative refraction.ConclusionsPatients with postsurgical refraction between ?0.50 and ?1.00 diopters displayed better visual function without glasses than those with refraction out of that range.Neutral distant refraction and positive lenses for near vision might not be the ideal solution for every patient. Postsurgical refraction should be individualized for each patient according to their personal preferences, in order to achieve the best visual function and the best vision-related quality of life.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号