Between varying definitions of legal blindness, the simplest one is a visual impairment that cannot be fully corrected with lenses. A legally blind person can still na🌟vigate the world around them andꦆ still interact with visual media, such as reading.

Corrective lenses might improve their siꩵght enough to have relatively low impact on daily life.

A character with partial blindness might have disadvantage on perception checks but suffer no penalty in combat.

A character who is born without sight is going to be adept at working without it. Allow them to use hearing to identify the locations of people in combat and let them navigate most situations without a pena෴lty.

They don't need to have Daredevil's echolocation, but knowing imprecisely where people are is enough to throw fireballs at them.

A character who loses their sight later in life will navigate the world differently and face many unique struggles. Many character arcs can grow from coming to terms with a loss of sight, but it's also the hardest to represent mechanically while keeping the game balanced.

You might start them with a strong penalty that lessens as they adapt and learn new techniques. Disad꧋vantage when attacking is typical of a recently blinded character.

An often neglected part of the Find Familiar Spell is that the caster can numb their own senses to see through the eyes of the summoned creature. As written, this lasts for one turn and requires an action, but if you allow it to be toggled instead, a blind person can have the magical equivalent of a seeing-eye dog.

Giving blind characters Find Famili♕ar as a free spell is not🌃 going to damage the balance of your game.

An intelligent opponent might choose to destroy familiar, leaving the character unable to see untilꦏ they recas🌞t the spell.

An alternative to having a familiar take the place of your eyes is to have another party member relay visual information. In this case, the character could target spell﷽s and attacks while not deafened and close to another party membe⛦r.

How extensively this interact🧸ion is roleplayed is up to the players. It might be as simple as "throw a🐷 lightning bolt at 11 o'clock" or as precise as describing the exact distances and angles between people on the battlefield.

Thi💎s doesn't grant any new abilities to the characters, so it shouldn't impact balance.

The blind-fighting style gives blindsight to a range of ten feet. This lets a character navigate and engage in combat but a😼lso gives a pronounced vulnerability to anything beyond this area.

Make sure to clarify where this blindsight comes from: Are you sensing auras, feeling movements in the wind, or determining directions and locations purely by divination🔯 magic?

Giving the fighting style for free won't break your game.

You could allow a feat to be invested into this starting blindsight to upgrade it♒ to about 30ft.

Tremorsense is almost exclusively given to burrowing creatures, so it isn't designed with player use in mind. One way to make it distinct as a sense is to emphasize that it relies on movement and contact wit♔h the ground.

A character with tremorsense might know exactly where a person is moving behind a wall but miss something suspended in the air or carri🦩ed by that person.

Allowing tremorsense as an alternative to equivalent blindsight abilities should be fair in most scenari🅘os as it has 🅠its own strengths and weaknesses.