Ocular

Question: What is the most commonly used objective and ocular in microbiogy? In microbiology what is the most commonly used objective lens and the most commonly used ocular lens and why? Anything would help, I have been searching the internet but there are mixed answers. Thank you soo much Thanks guys :)

Answer: 10x ocular and 100X objective.

Question: what is between a detached retina and Ocular Migraine? I have all the symptoms of a detached retina but it has been tested and proven several times thats not what it is. The next one down on the symptoms list is an ocular migraine but the symptoms are more often than with an ocular migraine. Anyone with medical knowledge with an idea?

Answer: Retinal detachment is easily diagnosed and can be treated in ophthalmology centers, ocular migraine is poorly understood and hence there is no treatment for this condition. Only taking precautions when one gets an attack, is advised. See- http://www.allaboutvision.com/conditions/ocular-migraine.htm Hope it helps.

Question: What is the freezing point of ocular fluid? At what temperature does ocular fluid (specifically vitreous humour) freeze? According to Wikipedia's article on vitreous humour, the fluid contains very few cells, and 98-99% of its volume is water. However, it also contains salts, sugars, vitrosin (a type of collagen), a network of collagen type II fibers with the mucopolysaccharide hyaluronic acid, and also a wide array of proteins in micro amounts. Do these components lower the freezing point of the fluid as salt lowers the freezing point of water on the road? If so, to what extent?

Answer: Anything dissolved in solution will lower the freezing point. Considering that it is only a 1-2% solution I would imagine that the fp would only go down by a degree or less. A 10% salt solution will drop the freezing point 12 degrees F.

Question: How can a person tell if they have ocular herpes? What signs are visible? Is there any treatment? If there are so many ppl that have the disease why is it never spoken about? From reading various articles there are so many people with herpes. Is there a treatment for the ocular herpes to prevent blindness?

Answer: Ocular herpes are basically fluid-filled fever blisters on and around the eye. They are very painful. There are medications to treat an outbreak and medications to help prevent outbreaks, but there is no cure.

Question: What is the total magnification of a microscope with an eyepiece with 15X magnification and an ocular of 40X? What is the total magnification of a microscope with an eyepiece with 15X magnification and an ocular of 40X?

Answer: The total magnification is 15 times 40 = 600X (Note: it is NOT 15 plus 40)

Question: Does anyone know how to use a ocular micrometer in a microscope for measurement calculations? I'm in a microbiology course and I need to figure out how to do the calculations with the ocular micrometer. Exp. say for instance I measure a cell on 10x and from end to end it reads 12 mm does that mean it would be 12 x 10 equaling 120mm. and if so would it work the same on 40x I'm lost on this if someone could please help I would really appreciate it.

Answer: 120 mm = 12 cm = 4.72 inches That doesn't sound right for a cell. Crude "estimated" calibration method: 1.) multiply the Objective magnification by the Ocular magnification = total magnification 2.) divide the length measured by the total magnification example: 20x objective 10x ocular Total mag = 20 * 10 = 200x Ocular micrometer measurement = 12mm 12mm / 200 = .06mm or 60 microns Note: this is only an estimated method of measurement. The actual mag of the objective and the ocular may be different than the stated mag. Especially on cheap microscopes. Also, you need to know the measurement units of the ocular micrometer (reticule). Don't necessarily assume they are millimeters. The best way to "calibrate" an ocular micrometer or reticule is to measure a known distance using a stage micrometer. Then use the conversion factor from the known measurement to calculate your other measurements.

Question: How long can an ocular migraine last? I see a flashing strobe light out of the corner of my left eye. My doctor thinks it may be ocular migraines (it's not a torn retina according to the eye doctor). But I have had this flashing every day for over 2 months!!! Could an ocular migraine really last THAT long???

Answer: I get the same thing. Its a migrain that doesn't hurt but effects your vision and is very frustrating because you can't focus and lights flash or things in site swirl. Very frightening the first few times. They should not last for 2 months straight. Although you can get one every day that last a few minutes or an hour or more. When this happens, take Tylenol and drink a coke. (I know, that sucks, I absolutley HATE soda and that's the only time I drink it). Lay down in a quite dark room and try to relax. It should go away very quickly. If you are having one non-stop for 2 months then I suggest you go see a neurologist. That is not normal.

Question: Is it possible for humans with ocular albinism to have red or dark pink eyes? I know it's possible in animals, but is it in humans? Someone told me that humans can only have light blue, green, or brown eyes with ocular albinism. I'm doing some research for a story, help please? Yeah, yeah. Wrong section. But I wasn't getting any answers, and I'd like some.

Answer: As I recall reading, way in the distant past, persons so afflicted have light blue eyes that seem to oscillate or move rapidly at nearly all times. As I recall it's often disconcerting to look one in the eye with albinism. I've seen a few such people but I didn't actually notice this movement of their eyes, however each did have light blue eyes.

Question: Can you get glasses for a ocular migraine? Can you. Some answered my question bout weird things in my eyes and they said it sound like an ocular migraine and i looked it up and found symptoms and those were exactly what i got when i had an ocular migraine. The ye doctor said nothing was wrong with my eyes im 12, no one believes me can u get glasses for an ocular migraine?

Answer: No. Glasses have absolutely no affect upon ocular migraine.

Question: Can you have Ocular Rosacea without any other form of Rosacea? Hi, I have MGD and also seborrheic dermatitis at the moment. I am hoping that it isn't Ocular Rosacea, but if it is, is it possible to not develop any other sub type of Rosacea?

Answer: idk if i understand ur question.. i had teary eyes for awhile that were reddish and sensitive to allergies, they were like this for a few years.. and then i broke out with rosacea on my cheeks!! nowadays they feel really uncomfortable if i wear eye makeup or sunscreen around my eyes, unless i use Ocusoft scrub to remove leftover residue at night.. Ive also had clogged meibomian glands along my lashline, which I'm positive comes from my having developed Rosacea and oily/dry skin, plus the really itchy dandruff/seborrheic dermatitis on my scalp.. I'm sure you can get better, get treated so it can go into remission, avoid triggers, etc. wear sunscreen.

Question: Has anyone else experienced an ocular migraine? I had my first one today...I do suffer migraines, but this is the first ocular migraine I have had. No pain but a growing zigzag blind spot, I could see around the edge but anything in the middle I was blind too. This was one of the most frighten things I have ever experienced, lasted about 45mins then ended, but moved into the more common type of migraine with sever pain. Anyone else experienced this?

Answer: had one some time ago couldn't see my hands everything else was OK except the hands it was really weird

Question: If the magnification of the ocular is 20x on a microscope, what would the magnification of the objectives be? If the ocular is 20x, what is the magnification of: Scanning objective Low objective High objective Total magnification of each of the three objectives.

Answer: I thought the ocular was 10x. But if it was 20x I guess it would be 80, 200, and 800

Question: How many ocular jutsu's are there in naruto? please make a list of ALL of them in your answer? i really want to know all the ocular jutsu's, i already know the basics of sharingan, byakugan, mangekyou shaRINGAN and thats it. i've even heard there is more than one type of mangekyo sharingan. please list all ocular jutsu you know about and every detail about them in your answer, thanks.

Answer: for occular jutsus there are the Sharingan 1 tomoe 2 tomoe and the 3rd tomoe can see chakra Then you have the mangekyou sharingan which is unique to each individual who attains it. If the user uses this sharingan too much they start to go blind Then there is the Eternal Mangekyou Sharingan. you attain this by stealing the eyes from your family member. then the user who gets this form gets their eye sight back if they were to lose it from mangekyou. I believe there is a special eye jutsu that goes with the Eternal Mangekyou as well. Byakugan is the hyugas occular jutsu allows the user basically a 360 degree vision around him/her and also is able to see chakra. The last is The Rinnegan is characterized by a ripple-like pattern around the pupil, with a grayish-purple iris and sclera. In addition to enabling the user to quickly master various jutsu, the user may also use all six forms of chakra nature transformation which, as noted by Ibiki, literally allows its user to use any technique they wish. It also allows the user to use all of the six paths techniques Its also allows the user to see chakra. and the user basically has no blind spots.

Question: Will an eye transplant rid of Ocular Albinism? I am 16 years old and have had ocular albinism since I was a few months old. Right now, without contacts, my eyes are sitting at 20/60. I am going to another eye appointment to get them tested with my contacts to see how much that improves my vision. I was just wondering if anyone knew where they are these days regarding eye transplants and the sucsess rates as I can't find reliable information online. I also wondered if because of my somewhat rare condition, could an eye transplant actually rid me of ocular albinism? thanks !

Answer: I agree with all the above. What *may* help you more than regular contact lenses might be contacts with a completely opaque iris pattern, if this has not already been assessed. This could could cut glare and unfocussed light that might be passing through your iris rather than the pupil. Most "coloured contacts" do not have a competely opaque coloured portion and would not produce this effect. The cosmetic effect with opaque lenses (such as are used to turn dark brown eyes light blue) is not quite as good as with the "added colour" ones, so this would be something of a trade-off, but I suggest that a trial would worth considering.

Question: What is the difference between ocular and objective lenses on the microscope? All i need is 1-3 sentence .

Answer: An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. The objective lens or mirror collects light and brings it to focus creating an image.

Question: Does anyone have a picture of eyes with ocular albinism? Im doing a research project about ocular albinism and i cant get a good close up picture of human eyes with the disease. I would greatly appreciate the help!

Answer: not a close up eyes photo, but it shows normal eyes and albinism eyes: http://health.moonlightchest.com/albinism.asp

Question: How long after infection does Ocular Herpes have an outbreak? I've been having symptoms for a few weeks now and I'm wondering how long after my eyes are infected with herpes that they will have an outbreak. Yes, I believe I've infected myself. I just want to know how long it should be before I have an outbreak.

Answer: See an ophthalmologist immediately. You will likely be prescribed Anti-viral medication, to help mitigate the problem, this assuming you even have the condition. You did not give much information. So, did someone who has cold sores touch your eye? Do you think you self-infected yourself? If you have Ocular Herpes, you can go blind from this condition. It is IMPORTANT you get medical help immediately to rule it out ~ or in.

Question: What is the difference between an ocular migraine and a migraine headache?

Answer: Hey there, Ocular migraines cause temporary vision loss or distortion in one eye, usually accompanied or followed by a headache. They are also called retinal or ophthalmic migraines. They are caused by a sudden tightening (or constriction) of blood vessels, which reduces blood flow to the eye. The term "ocular migraine" is used in different ways, which can cause confusion. More common migraines with auras, which also cause visual distortions, are sometimes described as an "ocular migraine," especially if they don't cause a headache. The difference between these two types of migraines is that ocular migraines only cause symptoms in one eye, while migraines with aura affect both. And the migraine headache is just that. Having to do with your head more so than your eyes, even though it can still cause pain in your eyes as well. Hope this gives you the basics and helps a bit. Take care!

Question: what is the magnification of the ocular lens of a microscope? What is the shortest objective called? How do you switch objectives? Which structure controls how much light passes through the specimen? You should carry the microscope by placing yyour palm on the_____ and gripping the ____ with your other hand. How can you prevent your slide from slipping on the stage?

Answer: These questions aren't really answerable without knowing what kind of microscope and how it's been set up in your class. A typical ocular is 10x. The shortest objective is usually 2x or 4x and is for scanning You switch objectives by rotating the nosepiece The iris or diaphragm controls how much light passes to the stage You should carry the microscope by placing one palm under the base and gripping the arm with your other hand. You can prevent your slide from slipping by using the slide clips on the stage

Question: Can an ocular migraine happen in just one eye? My brother had this last week, he said it lasted about half an hour, just in one eye, and that he had a big blind spot in that eye. He's 43 and relatively healthy, a little overweight though.

Answer: Yep. You can get them in just one eye. I get those darn things occasionally. The first time scared the crap out of me. I thought I was having stroke and went to a hospital emergency room. Now they just annoy me. It turns out they are relatively harmless unless you try to drive or something. My doctors told me to just take some Advil (Ibuprofen). It seems to work and they go away within 20 minutes. Here is something I found last year that might help your dad. http://www.allaboutvision.com/conditions/ocular-migraine.htm . .