Phantom Eye Syndrome is NOT a multi-million dollar summer blockbuster movie. It is a real medical condition that many patients report after one eye has been surgically removed.What is a phantom vision? Phantom vision was manifest by the transient belief that visual sensations were present in the abs...

Does a concussion affect your eyesight?A concussion can affect vision by damaging the eyes themselves, muscles that surround the eyes or parts of the brain involved in vision. Even small vision changes can affect your daily life by making it difficult to read, drive, exercise, and carry out work or ...

A retinal tear or break happens when the gel-like vitreous in your eye pulls on your retina and causes a split. Your retina is a thin layer of tissue that’s sensitive to light found at the back of your eye.A retinal tear isn’t the same as a retinal detachment. A retinal tear could lead to a retinal ...

We suggest a theory to frozen light, which was first registered in 2000 by Lene Hau.Lene Vestergaard Hau is a Danish physicist and educator. She is the Mallinckrodt Professor of Physics and of Applied Physics at Harvard University.She was also awarded tenure in 1999 and is now Mallinckrodt Professor...

Co eal densitometry (CD) uses the biological properties of the co ea to visualize the morphology of the co ea and determine the degree of co eal transparency. At present, it is an emerging metric that has shown promise in various clinical diagnosis and evaluation of eye diseases and surgeries. We in...

What are the properties of the color green?Researchers have shown that the green color has the ability to soothe our nervous system. Indeed, since it is the easiest color to perceive for our eyes, our whole body can then relax when this color surrounds us. That's why green is so prevalent in hospita...

Pars plana refers to a region of the eye that is characterized by clear, smooth, cystoid cavities known as pars plana cysts, which exist between the pigmented and nonpigmented epithelial layers.The pars plana (also known as orbicularis ciliaris) (Latin: flat portion) is part of the ciliary body in t...

Blind spot testTo see or not to see. The eye’s retina receives and reacts to incoming light and sends signals to the brain, allowing you to see. One part of the retina, however, doesn't give you visual information—this is your eye’s “blind spot.”At the back of your eye is the retina. Your retina is ...

Astigmatism can be co eal, lenticular, or retinal. Based on the meridian, it can be with the rule, against the rule, oblique and bi-oblique astigmatism. Astigmatism can also be subdivided as simple, compound, and mixed.What is the rarest type of astigmatism? This defect in the eye is categorized as:...

Transient Light Sensitivity Syndrome (TLSS) Incidence Following Femtosecond LASIK for Myopic and Hyperopic Eyes and Femtosecond SMILE for Myopic EyesShort- and Long-Term Light Sensitivity after LASIK surgery Why are my eyes sensitive to artificial light?Your eyes can be sensitive to light due to pho...

Visual discomfort is a frequent complaint of computer workers. Eyestrain and headaches blurred vision are the most common problems reported. Other problems include double vision , bu ing and dry eyes , eye fatigue , light sensitivity , and after-images . Neck shoulder and back pain can also be relat...

Decentered ablation is when the area reshaped by the laser in P RK , LA SEK , La sik , Ep i-Lasik , and other laser assisted refractive surgery techniques is not centered to the eye's visual axis . This often means the edge of the ablation zone is within the visual axis, producing ghosting , starbur...

Fatigue, lack of light, compromised night vision, rush hour and impaired drivers all contribute to making driving at night more dangerous than during any other time of day. In fact, the risk of a fatal crash is three times greater at night, according to National Safety Council research . Common nigh...

Essential newbo care (ENC) is a comprehensive strategy designed to improve the health of newbo s through interventions before conception, during pregnancy, at and soon after birth, and in the postnatal period. -- The components of essential newbo care. 1st eye examination Family history of eye disea...

Blue light , which is part of the visible light spectrum, reaches deeper into your eye and its cumulative effect can cause damage to your retina and it is co ected to the development of age-related macular degeneration . Blue light is not just entering your eye from natural sources like the sun. Sun...

یک سلول گیرنده نور ( photo receptor ) نوع خاصی از سلول موجود در شبکیه است که قادر به انتقال نور فضا است. اهمیت بیولوژیکی فتوریسپتورها این است که آنها نور (تابش الکترومغناطیس قابل مشاهده) را به سیگنالهایی تبدیل میکنند که میتوانند فرایندهای بیولوژیکی را تحریک کنند .برای مشخص شدن بیشتر، پروتئینهای فتور...

The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina. It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting th...

The sclera is the medical term for the white of the eye. In general, sclerology refers to an alte ative medicine practice that relies on examining the sclera for clues to overall health. These clues can involve the overall shape or color of the sclera, as well as the presence and patte of red lines ...

Uses of Flucort 0.1 %. Contains : Fluorometholone(0.1 %) Uses : Eye infection Therapy : OCCULAR STEROID Side effects: Bu ing sensation in the eyes, increased pressure in the eye, eye irritation Blurred vision Flucort Eye Drop is used in reducing redness , swelling , itching and soreness in the eye. ...

What are hormones? Hormones are chemical messengers that control our body. You may have heard of hormones such as Thyroxine, Melatonin, Estrogen, Testosterone, Adrenaline and Insulin. Hormones are produced by glands found in our brain and throughout our bodies. Glands such as the thyroid, pituitary ...