甲型流感病毒PCR-熒光探針?lè)z測(cè)試劑盒

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【公司名稱】 廣州健侖生物科技有限公司
【市場(chǎng)部】    楊永漢

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【騰訊  】 2042552662
【公司地址】 廣州清華科技園創(chuàng)新基地番禺石樓鎮(zhèn)創(chuàng)啟路63號(hào)二期2幢101-103室

眼底熒光血管造影 能進(jìn)一步了解眼底血液循環(huán)(達(dá)毛細(xì)血管水平)的細(xì)微結(jié)構(gòu)、動(dòng)態(tài)變化以及功能上的改變，為眼底病提出更多、更詳盡的診斷依據(jù)。

2.視覺(jué)電生理檢查 包括視網(wǎng)膜電圖(ERG)、眼電圖(EOG)、視誘發(fā)電位(VEP)等，以了解視網(wǎng)膜及視路功能。

3.影像檢查 包括細(xì)菌、眼眶X線檢查，超聲探查以型超聲(A型超聲、B型超聲、超聲多普勒)，CT掃描，磁共振成像(MRI)等。可以顯示眼部結(jié)構(gòu)和病理變化，對(duì)眼部不透明組織可達(dá)到直接視診目的。

視力障礙的鑒別診斷

與下列類似癥狀相鑒別：

失明又稱為盲(blind)，指視力殘疾中程度較重的一類。狹義指視力喪失到全無(wú)光感;廣義指單眼失去辨解周?chē)h(huán)境的能力。

兩眼不能同時(shí)注視一目標(biāo)，而僅能用一眼注視，另一眼的視軸表現(xiàn)不同程度的偏斜，此現(xiàn)象稱為斜視。斜視的偏斜程度，可由測(cè)量?jī)裳圯S間的夾角而得。

假性Parinaud綜合征,是核性損害特征的表現(xiàn),病灶側(cè)*性動(dòng)眼神經(jīng)麻痹伴對(duì)側(cè)上視障礙。對(duì)側(cè)上視受限是由于病灶側(cè)上直肌核破壞所致。

看東西會(huì)特別費(fèi)勁;或一個(gè)物體可以看成兩個(gè)，造成視物雙影，即復(fù)視。

垂直注視麻痹,病人隨意及反射性垂直注視均消失,此乃由于頂蓋前區(qū)和后連合梗死引起上視麻痹,紅核的內(nèi)側(cè)和背側(cè)梗死引起下視麻痹。如上丘后半部受損，則兩眼下視不能。

患者主訴視力減退，首先應(yīng)當(dāng)了解確切的視力情況，包括遠(yuǎn)視力和近視力，以除外屈光不正和老視。若遠(yuǎn)、近視力均不好，則應(yīng)看有無(wú)眼紅，即睫狀充血。如存在睫狀充血，應(yīng)當(dāng)考慮角膜炎、虹膜睫狀體炎(包括外傷所致)、閉角型青光眼。若無(wú)睫狀充血，則應(yīng)檢查屈光間質(zhì)有無(wú)混濁，如角膜癲痕、變性、白內(nèi)障、玻璃體混濁等。或?yàn)殚_(kāi)角型青光眼、眼底病變。通過(guò)眼底檢查，對(duì)視網(wǎng)膜、脈絡(luò)膜、視神經(jīng)病變可以明確。如上述病變均不明顯，則要通過(guò)視野檢查除外視路病變。若均為細(xì)菌性，應(yīng)除外弱視。當(dāng)然還需結(jié)合主訴中的其他癥狀全面分析。因此詳細(xì)詢問(wèn)病史及從前向后逐步細(xì)致地檢查是非常重要的。

Fundus fluorescein angiography can further understand the fundus blood circulation (up to the level of capillaries) the fine structure, dynamic changes and functional changes for the fundus put forward more and more diagnostic basis.

2. Visual electrophysiological examination including electroretinography (ERG), electro-oculography (EOG), evoked potential (VEP), etc., in order to understand the retina and visual pathway.

3. Imaging examination including bacteria, orbital X-ray examination, ultrasound to type ultrasound (A ultrasound, B ultrasound, ultrasound Doppler), CT scan, magnetic resonance imaging (MRI) and so on. Can show the ocular structure and pathological changes, ophthalmic ophthalmic organizations can achieve direct visual inspection purposes.

Differential diagnosis of visual impairment

With the following similar symptoms:

Blindness, also known as blindness, refers to the more severe category of visual impairment. Narrow sense refers to loss of vision to no light sense; broad sense refers to the loss of one's eyes to resolve the ability of the surrounding environment.

The two eyes can not focus on a target at the same time, but only with one gaze, the other eye axis showed varying degrees of skew, this phenomenon is called strabismus. Strabismus degree of skewness, measured by the angle between the two axons derived.

Parinaud's syndrome is the most characteristic manifestation of nuclear damage, complete lesion side of the oculomotor nerve paralysis with contralateral supraoptic disorders. Opposite upper visual limit is due to lesions on the side of the rectus muscle destruction.

Watching things can be particularly laborious; or an object can be viewed as two, resulting in double vision, double vision.

Vertical gaze paralysis, the patient random and reflex vertical gaze disappeared, this is due to the apical area and the posterior commissure infarction caused by paralysis of the upper paralysis, medial and dorsal ramus caused by paralysis of the lower paralysis. Such as the upper half of the hind weakened, the next two can not see.

Patients complain of vision loss, first of all should understand the exact visual acuity, including far vision and near vision to exclude refractive errors and presbyopia. If far, near vision is not good, you should see whether there is jealous, that ciliary hyperemia. If there is ciliary congestion, should consider keratitis, iridocyclitis (including trauma caused), angle closure glaucoma. If there is no ciliary hyperemia, you should check the refractive media with or without turbidity, such as corneal epilepsy, degeneration, cataract, vitreous opacity and so on. Or open-angle glaucoma, retinopathy. Through the fundus examination, the retina, choroid, optic neuropathy can be clear. If the above lesions are not obvious, you have to pass the visual field test except for pathological changes. If all are bacterial, should be excluded amblyopia. Of course, combined with the other complaints in the main comprehensive analysis. Therefore, it is very important to ask about the medical history in detail and check the details carefully from the past backwards.