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Contact lens production process

六月 28th, 2010

1, rotating lens mold forming process
made by the computer program. The process is repeated purification of liquid raw materials trickle-down high-speed rotating one-time die, die, as well as the trickle-down direction of the rotation speed by the full range of precise computer control to ensure that the lens shape, thickness and refractive error, such as with the design parameters . In the process of rotating in the ultraviolet radiation of liquid raw materials took place under the light polymerization to form a solid lens, and then after finishing the edge, Tuomo hydration, extraction, Read more »

Vitreous opacity general protection

六月 25th, 2010

transparent glass body gel, if there is lack of transparency, has become turbid vitreous (vitreousopacities). Vitreous opacity is not an independent disease, usually one of the symptoms of certain eye diseases. If the check vitreous opacity is not very serious, you can massage around the eyes to relax the muscles so that the blood flow. Massage is the recommended method: sit on the bed, eyes closed with the thumb, index finger up and down respectively on the eyes, both inside and outside the rotation to 50, change the index finger, middle finger into a pair of scissors-like massage the corn Read more »

What is intermittent exophthalmos?

六月 22nd, 2010

vascular diseases are rare exophthalmos. Intermittent exophthalmos (intermittentexophthalmos) for the multi-sided, left eye is higher than the incidence of the right eye, mostly male patients.
symptoms diagnosis:
1, 1:00 exophthalmos of the important features of this disease, its level of prominence with the first bit of change increases and decreases in duration ranging from regular attack or accidental attack. Patients in the head, forced expiratory, jugular vein or oppress Xiangpang to reverse the neck, can be stirred up at prominent eye, but also showed that: ptosis, eyelid swellin Read more »

What is pulsating exophthalmos?

六月 19th, 2010

pulsating exophthalmos (pulsatingexophthalmos) in the common carotid artery and cavernous sinus fistula blood vessels, as a result of internal carotid artery through the cavernous, arteriovenous fistula occurred in the common parts.
symptoms diagnosis:
1, exophthalmos side, with the pulse and throb and noise associated with.
2, referring to oppression or eye ipsilateral common carotid artery can reduce the exophthalmos.
3, eyelid and conjunctiva swelling congestive heart, and diplopia. Brbrbr4, there could be paralysis keratitis.
5, due to varicose veins in the superior orbital a Read more »

Central and peripheral vision, including vision

六月 16th, 2010

vision is the eye's ability to be able to see the object, that is, the sharp eye of the retina, in particular refers to the macula, the central retina distinguish between the two concave light of the sharp points, including the central and peripheral vision vision.
central vision is the vision of the central retinal Au, the immediate identification of goods, including long and short-sighted vision, it is necessary for day-to-day activities, such as reading or to identify other people's facial features and so on. If the focus to stare at something clear to see, such things can be Read more »