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The entire healthcare team plays a vital role in measuring for, fitting, and developing spectacles, contact lenses, and other ophthalmic optical devices with the ideal corrective refraction. Fitting spectacles properly centered over the eyes for ideal vision is an important task performed by opticians, nurses, and other interprofessional team members. Understanding optical power and the principles of positive and negative lenses ensures the avoidance of simple mistakes in spectacle fit and prescription. The lensmaker formula measures optical power in diopters, which opticians and optical technologists can use to understand patient-specific vision needs, including the adjustment of additive lenses should the patient need additional power for activities like reading. Ophthalmologists, optometrists, and opticians utilize the lensmaker formula to solve issues of aniseikonia when the difference between eyes is more than 1 diopter. Both contact lenses and iseikonic spectacles can be used to treat aniseikonia, and opticians should be trained in the manufacturing and optics of these special lenses to avoid poor lens adaptation, diplopia, headaches, and amblyopia.[5] For all patients requiring refractive care, the collaboration of cataract surgeons, refractive surgeons, contact lens fitters, refractionists, and opticians should aim to provide the best optical outcome for patients. Clinical judgment and physical examination skills are necessary to determine when spectacle lenses or contacts will provide the ideal refraction for a patient, or further intervention, such as cataract surgery, may be required. After interventions such as cataract or refractive surgery, the surgeons should continue to work with opticians and other healthcare team members to ensure that any necessary postoperative refraction is provided to the patient for the best optical outcomes. Patient preference should be considered when medically possible, including a preference for contact lenses versus spectacles, a desire for further refractive surgeries, and overall expectations of the optical outcome.