A head-mounted display comprising: a front rigid body; a head strap or eyeglasses temples and temple tips; an eye cone configured to display images to one of a user's eyes, the eye cone comprising an optical lens and a peripheral wall extending towards the rear of the HMD; and a lens assembly (110A, 110B) comprising: a corrective lens configured to correct a vision error of an eye, the corrective lens comprising: a first surface, a second surface opposing the first surface, and a side surface connecting the first surface and the second surface; and a frame configured to attach to the body of the HMD, the frame comprising: an inner surface onto which the corrective lens is attached, and a wall extending at a first portion of the frame and configured to receive the peripheral wall at the eye cone of the HMD, an inner surface of the wall comprising a plurality of protrusions configured to be received in a plurality of notches on an outer surface of the peripheral wall of the eye cone; wherein the lens assembly (110A, 110B) is removably attached to the peripheral wall of the eye cone. a front rigid body; a head strap or eyeglasses temples and temple tips; an eye cone configured to display images to one of a user's eyes, the eye cone comprising an optical lens and a peripheral wall extending towards the rear of the HMD; and a lens assembly (110A, 110B) comprising: a corrective lens configured to correct a vision error of an eye, the corrective lens comprising: a first surface, a second surface opposing the first surface, and a side surface connecting the first surface and the second surface; and a frame configured to attach to the body of the HMD, the frame comprising: an inner surface onto which the corrective lens is attached, and a wall extending at a first portion of the frame and configured to receive the peripheral wall at the eye cone of the HMD, an inner surface of the wall comprising a plurality of protrusions configured to be received in a plurality of notches on an outer surface of the peripheral wall of the eye cone; wherein the lens assembly (110A, 110B) is removably attached to the peripheral wall of the eye cone. a first surface, a second surface opposing the first surface, and a side surface connecting the first surface and the second surface; and a frame configured to attach to the body of the HMD, the frame comprising: an inner surface onto which the corrective lens is attached, and a wall extending at a first portion of the frame and configured to receive the peripheral wall at the eye cone of the HMD, an inner surface of the wall comprising a plurality of protrusions configured to be received in a plurality of notches on an outer surface of the peripheral wall of the eye cone; wherein the lens assembly (110A, 110B) is removably attached to the peripheral wall of the eye cone. an inner surface onto which the corrective lens is attached, and a wall extending at a first portion of the frame and configured to receive the peripheral wall at the eye cone of the HMD, an inner surface of the wall comprising a plurality of protrusions configured to be received in a plurality of notches on an outer surface of the peripheral wall of the eye cone; wherein the lens assembly (110A, 110B) is removably attached to the peripheral wall of the eye cone.