eye tips

A compound eye is a visual organ found in arthropods such as insects and crustaceans. It may consist of thousands of ommatidia, which are tiny independent photoreception units that consist of a cornea, lens, and photoreceptor cells which distinguish brightness and color. The image perceived by this arthropod eye is a combination of inputs from the numerous ommatidia, which are oriented to point in slightly different directions. Compared with single-aperture eyes, compound eyes have poor image resolution; however, they possess a very large view angle and the ability to detect fast movement and, in some cases, the polarization of light. Because a compound eye is made up of a collection of ommatidia, each with its own lens, light will enter each ommatidium instead of using a single entrance point. The individual light receptors behind each lens are then turned on and off due to a series of changes in the light intensity during movement or when an object in moving, creating a flicker-effect known as the flicker frequency, which is the rate at which the ommotadia are turned on and off, allowing the compound eye for much faster processing than the single-chambered eye. Which is why flying insects can handle 250 images per second, compared to humans that can only process 24 images per second.

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  1. U

    Closed Please read

    Sino po may kakilalang optemetrist or optomologist (not sure sa spelling)? May question po kasi ako. Nagpagawa ako ng salamin na may prescription. May mataas astigmatism po ako eversince pinanganak ako, tapos ang taas din po ng grado ko. 300 and 350 ganon. So ayun, nagpacheck up ako sa...
  2. K

    Closed How to Avoid Eye Strain While Working at a Computer

    Eye strain is a common complaint among many people today. This is in large part because we spend so much time looking at computer screens, tablets, and phones. Long periods of gazing at the same spot strains the ciliary muscle of your eye, which can tire your eyes, causing temporary blurriness...
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    Closed Tips for Eye Health

    See your eye doctor regularly. When you are seeing well, or not having a noticeable visual impairment, it's easy to forget about making an appointment to see your eye doctor. Eye exams are not just for people experiencing changes in their visual acuity. An eye exam is an essential way to detect...