The phrase "alter the optical" is correct and usable in written English.
It can be used in contexts related to changing or modifying visual elements, such as in photography, design, or optics.
Example: "The new software allows users to alter the optical settings of their images for better clarity."
Alternatives: "modify the visual" or "change the optics".
Such changes alter the optical properties of tooth structure, creating the perception of a whiter tooth colour.
The sol gel coating does not alter the optical characteristics of the laser treated surface.
Besides, the spherical shape of the MNP cavity is impractical to electrically contact the device, and even if realized, this might alter the optical mode17.
Changes in refractive index alter the optical power of the reflected signal, which is enhanced by the organometallic compound.
Hyperosmotic agents such as glycerol have been used to alter the optical scattering properties of turbid tissues.
The increase in current injection and brightness does not alter the optical emission spectrum at different operating voltages in these devices.
When the bandage is placed over an infected area, bacteria from the wound move into the porous silicon and attach themselves to the probe molecules, altering the optical properties of the silicon.
The study revealed the application of pH-sensitive nanoparticles-laden contact lenses for controlled release of cyclosporine without altering the optical and physical properties of lens material.
Subsequently triggered polymer growth resulted in the surface graft of preformed polymer chains onto nanoparticles that altered the optical property of GNPs.
The spectral mismatch between asteroids and ordinary chondrites, is explained by a so-called "space weathering" process where impacts of interplanetary dust altered the optical properties of asteroid surfaces.
