You possess the inhuman eyes of some strange creature. They might look segmented or larger or without pupils. You might even have eyestalks.
Prerequisite: Aberration Blood.
Benefit: You gain a racial bonus on Spot checks equal to the number of aberrant feats you possess.
The range of your darkvision improves by 5 feet for every aberrant feat that you possess.
If you do not already have darkvision, you gain darkvision out to 5 feet for each aberrant feat you possess.
Source: Lords of Madness, page 180.