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【公司名称】 广州健仑生物科技有限公司
【市场部】 杨永汉
【】
【腾讯 】 2042552662
【公司地址】 广州清华科技园创新基地番禺石楼镇创启路63号二期2幢101-103室
眼底荧光血管造影 能进一步了解眼底血液循环(达毛细血管水平)的细微结构、动态变化以及功能上的改变，为眼底病提出更多、更详尽的诊断依据。
2.视觉电生理检查 包括视网膜电图(ERG)、眼电图(EOG)、视诱发电位(VEP)等，以了解视网膜及视路功能。
3.影像检查 包括细菌、眼眶X线检查，超声探查以型超声(A型超声、B型超声、超声多普勒)，CT扫描，磁共振成像(MRI)等。可以显示眼部结构和病理变化，对眼部不透明组织可达到直接视诊目的。
视力障碍的鉴别诊断
与下列类似症状相鉴别：
失明又称为盲(blind)，指视力残疾中程度较重的一类。狭义指视力丧失到全无光感;广义指单眼失去辨解周围环境的能力。
两眼不能同时注视一目标，而仅能用一眼注视，另一眼的视轴表现不同程度的偏斜，此现象称为斜视。斜视的偏斜程度，可由测量两眼轴间的夹角而得。
假性Parinaud综合征,是核性损害特征的表现,病灶侧*性动眼神经麻痹伴对侧上视障碍。对侧上视受限是由于病灶侧上直肌核破坏所致。
看东西会特别费劲;或一个物体可以看成两个，造成视物双影，即复视。
垂直注视麻痹,病人随意及反射性垂直注视均消失,此乃由于顶盖前区和后连合梗死引起上视麻痹,红核的内侧和背侧梗死引起下视麻痹。如上丘后半部受损，则两眼下视不能。
患者主诉视力减退，首先应当了解确切的视力情况，包括远视力和近视力，以除外屈光不正和老视。若远、近视力均不好，则应看有无眼红，即睫状充血。如存在睫状充血，应当考虑角膜炎、虹膜睫状体炎(包括外伤所致)、闭角型青光眼。若无睫状充血，则应检查屈光间质有无混浊，如角膜癫痕、变性、白内障、玻璃体混浊等。或为开角型青光眼、眼底病变。通过眼底检查，对视网膜、脉络膜、视神经病变可以明确。如上述病变均不明显，则要通过视野检查除外视路病变。若均为细菌性，应除外弱视。当然还需结合主诉中的其他症状全面分析。因此详细询问病史及从前向后逐步细致地检查是非常重要的。
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.
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