articles

The nictitating membrane is attached at the eye's inner corner. It is a thin, translucent membrane that can be drawn horizontally across the eye to protect it, to remove sand and other debris or to provide moisture while... More »

www.reference.com Pets & Animals Birds

The nictitating membrane, also called the third eyelid, serves as a layer of protection for cats and other animals. It also functions in keeping the surface of the eye moist. Although not normally seen in cats, on certai... More »

www.reference.com Pets & Animals Pets Cats

The nictitating membrane is an opaque or transparent third eyelid that is present in some animals, including dogs and cats. It functions as a protective barrier from environmental hazards such as water, sand or debris. T... More »

www.reference.com Pets & Animals Pets Dogs
similar articles

A tear duct has two small drainage holes in the inner corner of the eye called puncta, which connect to two thin channels, the canaliculi, which lead to the longer but wider lacrimal sac that runs along the side of the n... More »

www.reference.com Science Human Anatomy

Iritis is a painful inflammation of the iris of the eye, the circular membrane giving the eye its color and containing the pupil, explains WebMD. While blunt trauma and certain conditions and infections may cause the con... More »

www.reference.com Health Conditions & Diseases

An epiretinal membrane over the macular area means that scar tissue has developed of the macula of the eye, according to the National Institutes of Health. The macula is the center of the retina and is responsible for th... More »

www.reference.com Health Vision

The nictitating membrane, also called the third eyelid, serves as a layer of protection for cats and other animals. It also functions in keeping the surface of the eye moist. Although not normally seen in cats, on certai... More »

www.reference.com Pets & Animals Pets Cats