Optical Illusions

On roses clip back to next leaf, on daylilies take the entire stalk, otherwise just pop the declining bloom off.
The best way to deadhead is to remove only the faded flowers. Once all the flowers on a stem have been removed, then cut the stem back to a bud or leaf or to its base. Another way is to disbud, which is to take off the smaller buds to promote the larger ones.

cd, dvd, and vcd

There is notging scary about it LOL

Most allergies to eyewear arise from the nickel metal in eyeglass frames, even frames that claim to be another metal (ie-titanium) usually still have trace amounts of nickel metal in them. If the metal on the frame is turning green where it touches your skin, this is usually a sign of nickel metal allergy.

If you do truly have an allergy to polycarbonate lenses (which I've never heard of) you can just use standard plastic (CR-39) or glass lenses.

Your lens are not ground correctly for eye axis rotation, the problem can be fixed but you'll probably have to see an opthamologist MD.

A mirage

its in the left hand corner in the bottom

Yes, it can do.

Keratometer is a device, which can be use to measure the curvature of the Cornea, in order to fit the contact lenses on it. The result ofcourse, is believed to measured only the Corneal Power and Astigmatism of the outer surface of the cornea, but there is a way to calculate the total Astigmatism amount for the eyeball, with using the Javal's law.

There are 2 ways to write the result of Keratometry, which are standard.

for example, we have calculated an amount for an eye like this:

43.00@90 & 46.00@180 => the Clinical result : -3.00X90 ATR (against the rule)

Now, to write the standard prescriotion, there are 2 way:

1- 43.00/46.00@180

2- 46.00X90

"@" Means Meridian

"X" Means Axis

Sincerely Yours

Khashayar Mehdizadehkashi

Student of Bs. in Optometry

School of Rehabilitation

Iran University of Medical Sciences

March 08, 2010

cell: +98(912)4335199

We see in three dimensions because of the action of our two eyes. Our brain perceives two images simultaneously from two angles, giving us the perception of depth. This is the reason one loses their depth perception with only one eye.

Well, you won't see the 3D effect. Instead you will see 2 separate images.

Try it.

The glass at the bottom is not of uniform thickness and not of optical quality. The rays of light from the objects that you are looking at are, therefore diffracted and absorbed in different ways. This causes the distortions.

Anything which is part of the normal landscape or sky (trees, hills, birds,clouds, planes) usually looks smaller when they're near the horizon. The reason for this is simple: stuff near the horizon is generally more distant. Just take trees in the landscape, or a road disappearing in the distance as an example. Because of this our brain knows and expects that objects at or near the horizon appear particularly small compared to their true life size.

They should be. Unless one eye is more round then other which would cause less sight in that eye.

The Bee Gees did a song called HOLIDAY who had the lyrics:

Millions of eyes can see

yet why am I so blind?

When the someone else is me

It's unkind, it's unkind.

DF

Lava. Pure fiery lava.

Op Art

Kerner Optical was created in 2006-08.

oceansize

Humans typically struggle to see objects closer than about 25 cm due to the limitations of the eye's lens and the focusing mechanism. The eye has a minimum focal distance, known as the near point, which is the closest point at which objects can be clearly focused on the retina. As objects move closer, the eye's lens cannot accommodate enough to focus the light properly, resulting in blurred vision. This near point can vary with age and individual differences, becoming further away as people get older.

Optical illusions demonstrate that our perception can be easily manipulated, leading us to see things that aren't there or misinterpret visual information. They highlight the gap between reality and our interpretation of it, showing that our brains can be tricked by contextual cues, colors, and shapes. This serves as a reminder that our senses, while generally reliable, can be deceived, teaching us to question our assumptions about what we perceive. Thus, optical illusions illustrate that seeing is not always believing.

Shading

The phenomenon of Jesus' eyes appearing to follow viewers is often attributed to an optical illusion, where the angle and perspective from which the painting is viewed create the impression that the eyes are open or looking directly at the observer. This effect can be enhanced by the way the artist has rendered the eyes, using techniques like shading and perspective. However, whether the eyes are depicted as open or closed depends on the specific artwork. Overall, while it can seem like an illusion, it is largely a result of artistic technique combined with viewer perception.