Cateye

 is a consumable item in Fallout: New Vegas.

Characteristics
When consumed, the Courier's vision is enhanced via a blue tint in dark places.

Cateye is less useful outdoors, especially during daylight. When used during the day, you lose the ability to make out many colors until the effects wear off.

Locations

 * Cateye can be purchased from Doctor Ada Straus in Novac.
 * A jar can be found next to a skeletal corpse at the Goodsprings Cave.
 * Large amounts of it can be bought in the Gomorrah casino.
 * A jar can be found on a grave at Goodsprings Cemetery.
 * A jar can be found in the last room in the The Prospector's Den.
 * 2 jars can be obtained from Atticus at Caesar's Legion Safehouse twice a week.
 * A jar can be found inside a dresser in one of the southernmost rooms of the living quarters level in Vault 3
 * 2 jars can be found in the Searchlight NCR storage basement, laying on one of the metallic shelves.

Bugs

 * The Cateye-effect can rarely happen after dispatching an enemy, although no chem was taken. Resting will remove the effect again.
 * Sometimes "Cat-eye has worn off" will show up, while the effects are still there. Entering an interior, or sleeping should fix this.
 * The Cat-eye effect can happen at random times, with no actual provocation. This happened more frequently on games with Wild Wasteland.
 * If a companion consumes a bottle of Cateye while waiting in the Lucky 38, you will also recieve the effect. Luckily followers rarely consume chems on their own.
 * While in Hidden Valley at night, the sandstorm effect counters the Cateye effect. Just be warned that this will sometimes happen and sometimes not.
 * The bugs mentioned above where the player gets the Cateye effect are due to the fact that the effect will ALWAYS be applied to the player, no matter who consumes an ingestible that provides this effect. Sometimes NPCs consume food items (like Nuka Cola Quartz) and then the player will get the effect. To fix, fix the CateyeEffect script in the toolset, it's probably best to block anybody except the player from running through the script (run a check of GetSelf against player). Also, any food items that are useful to the player should be ignored by Sandbox packages AI, the flag should be set on all Nuka Cola Quartz items located in areas like the Mojave Outpost Barracks, because otherwise the NPCs will simply drink them away, resulting in the annoying effect and the player losing valuable items.

Appearances
appears in Fallout: New Vegas.

Behind the scenes
The Low-Light Vision effect of Cateye is virtually identical to the Night-Eye effect in Bethesda Softworks' Elder Scrolls IV: Oblivion.