# Pair of lenses

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Name

pair of lenses

Appearance

pair of lenses

Base price

80 zm

Weight

3

Material

glass

Monster use

Will not be used by monsters.

A pair of lenses is a type of tool that appears in NetHack. It is made of glass.
The Eyes of the Overworld are an artifact pair of lenses.

Contents

1 Description
2 History
3 Variants

3.1 FIQHack

4 References

Description
Lenses are used by applying or putting them on; while worn, they protect your eyes from the raven's blinding attack and spat venom, but not from thrown cream pies or other sources of blindness. Wearing lenses when searching improves your chances of finding secret doors and corridors, but not traps. Worn lenses also increase your chances of successfully reading a spellbook by 10%, while reducing the time taken reading by 1⁄3.[1][2]
Lenses cannot be worn at the same time as a blindfold or a towel.

The following information pertains to an upcoming version (NetHack 3.7.0). If this version is now released, please verify that it is still accurate, then update the page to incorporate this information.

You can no longer wear lenses while in a headless form.
History
The pair of lenses first appears in NetHack 3.3.0.

Variants
FIQHack
In FIQHack, lenses also grant automatic searching when worn[3].

References

↑ src/spell.c in NetHack 3.6.6, line 348

↑ src/spell.c in NetHack 3.6.6, line 534

↑ https://github.com/FredrIQ/fiqhack/blob/865c9091803e844b66255e122877ae6c70950e51/libnethack/src/objects.c#L626