The Ophthalmoscope the Instrument Used to Check Eyes

The Ophthalmoscope the Instrument Used to Check Eyes

The ophthalmoscope, the instrument used to look at the back of the eye through the pupil, allows the blood vessels to the surface of the retina. These blood vessels entering the eye through a circular region of the retina called decolorized the optical disc. It is also at this place, which is the head of the optic nerve, the ganglion cell axons converge to exit the eyeball.

Given the absence of photoreceptors in this area, the eye is insensitive to light, as indeed go where larger blood vessels. It is for this reason that the optical disc also receives the name of blind spot. Yet we do not feel any interruption in our visual field blind spot because the brain “compensates” somehow visual perception at these locations (see capsule experience left).

In the center of the retina is a darkest part, the macula, which is substantially devoid of blood vessels to optimize the central vision (as opposed to the peripheral vision). In the center of the macula, a small depression creates a black spot of about 2 mm diameter. This is the fovea, the point of the retina consists exclusively of cones where visual acuity is best.



Several vision problems can arise when light rays do not converge exactly on the retina.

If the eyeball is too short from front to back, for example, the rays converge beyond the retina. This defect called hyperopia is corrected by placing a convex lens in front of the eye lens that will accentuate the convergence and reduce the focus on the retina.

In the case of myopia, the convergence is done in front of the retina when the eyeball is too long, for example. Myopia by wearing concave lenses are corrected.
Another blurred vision, presbyopia, has a hardening of the lens related to age. This tightening reduces the elasticity of the lens, preventing him from taking a sufficiently rounded shape during accommodation and flatten enough during relaxation. The correction of presbyopia uses a bifocal lens, the upper portion being concave for distance vision and the lower convex portion for near vision.

AMAZING LIFESTYLE WITH BALANCED DIET:

Allah has created all the things of this world for the ultimate use of human and human can get uncountable benefits from these but if these are used in balanced. Excess of any thing may harm us so we should maintain balance in every field of our lives. 

Whenever we eat something, it affects our body. To keep our body healthy and vigorous we should focus over diet which must be full of right amount of nutrition. For this our diet must be balanced diet. Balance diet means eating such food items which contains Carbohydrates, Vitamins, Proteins, Mineral Salts, Fiber, Fats, Cholesterol, and refined sugar, because these things are crucial for healthy body.

CARBOHYDRATES: Deliver vigor to our body, without this our body cannot function well. Moreover if we don't take carbohydrates in sufficient amount then it will be the reason of fatigue for us. Our routine diet must have more than 50% of carbohydrates. We can take carbohydrates from dried fruits like apples, prunes, bananas, dates etc, but these items must be taken in moderate because these have high dietary fibers and numerous vitamins which may be the reason of sugar desire.

PROTEINS: Proteins are very necessary for our body to perform it regular and better functions as these help us to fight against many infections. These are essence that's found in all cells of the individual body. These help to protect body tissues and develop hair, skin, eyes, muscles and hormones. These are big sources of energy and forms antibodies that help to prevent the human from several diseases. These are found in meat, poultry, seafood, dairy, eggs and many plant-based foods.

VITAMINS: Lack of vitamins in body can upset our health. The main sources of vitamins are Milk, Fruits, Vegetable Oils, Oats, and Wheat. For better health we should add the adequate amount of fruits, green vegetables, milk and eggs. 

WATER: Water is very necessary for our life and body. It is helpful in digesting the food and through using right amount of water we can save ourselves from diseases like dull skin, joint pains etc. We can also overcome on the problem of obesity by drinking proper amount of water. It must be our habit to drink 10 to 12 glass of water every day.

FATS: Some people have misapprehension that fats are harmful but facts are different as it protects our life supporting organs like liver and kidney. Fats play vital roles in building healthy cells, hormones, and healthier skin. 

MINERAL SALTS: Minerals like sodium, chloride, potassium, calcium, phosphorus, iron, magnesium, sulfur, zinc etc. play very important role in right function of our body. As our body does not produce minerals itself, so we should select those food items such as nuts, grains, milk, eggs, fish, fruits, vegetables, iodized salt, almonds etc. because these are the sources of minerals. 

Disclaimer: THIS ARTICLE IS JUST FOR GENERAL INFORMATION AND NOT TO PROVIDE HEALTH ADVICE. FOR ANY HEALTH PROGRAM PLEASE CONSULT WITH QUALIFIED HEALTH PROFESSIONAL.

FEED BACK AND COMMENTS WILL HIGHLY BE APPRECIATED. 

CAUSES AND TREATMENT OF MALE LIBIDO:-

What is libido; libido is desire of sex or sex drive. So we can say that loss of libido is erectile dysfunction or impotency. Healthier man has strong libido it means who you are and how you live your life a healthier and relaxed man has strong libido while sick and weak man has low libido. Mainly men face problem of Libido. There are so many factors that effect sex desire such as psychological, environmental, and physiological. Main is stress which affects the libido. Medical experts experienced from their professional life that stress keep main position in loss of libido. There are numbers of men who are involved in this problem, just due to stress. If a person at any age, especially above 40 is facing a loss of libido, he must consult with doctor. This problem normally faced by older age people but now due to change in life style and up gradation, this problem is being faced almost by all ages. 

Financial, workplace, and social problems also have negative impacts on health and libido of a person. Due to these problems, so many changes take place in a man mind that causes for loss of libido. The factors such as Diabetes, obesity, high blood pressure, cholesterol, poor diet and little physical activities also causes of low libido. 

Low blood circulation in penis also affect low libido so by improving blood circulation, you can improve your libido. Libido also depends on your rest of the body health, for this herbal male enhancement diets should be used, due to this not only your libido will improve but also overall health too.

HOW A MAN CAN IMPROVE HIS LIBIDO.

1)   Zinc & nitric oxide also play very important roles on libido, because zinc has great positive affects on sperm abnormalities and prostate disease while nitric oxide do well in your erection.

2)   Try to reduce stress because by managing stress you may increase your libido as you are mentally relaxed.

3)   Medicine should be taken but with the consultation of competent doctor.

4)   Herbal medicine containing ingredients like Tribulus Terrestris; Ginkgo biloba etc. should use as per requirement.

Disclaimer: THIS ARTICLE IS JUST FOR GENERAL INFORMATION & NOT TO PROVIDE HEALTH ADVICE. FOR ANY HEALTH PROGRAM PLEASE CONSULT WITH QUALIFIED HEALTH PROFESSIONAL.

FEED BACK AND COMMENTS WILL HIGHLY BE APPRECIATED.