The contact lenses of choice are the keratoconic and the custom design lenses. The fitting procedure is similar to that of keratoconic patients. [55,56] In cases of RGP lens intolerance ...

but wanted to get it working fully with a camera using the Canon EF lens fitting. Hacking ensued. The lens in question was a Sigma 15-30mm f/3.5-4.5 EX DG, built to work with a Sigma camera using ...

Management of these disorders is difficult due to the peripheral location of ectasia and associated severe corneal thinning. Newer contact lenses such as scleral lenses are helpful in a selected group ...

COMMENTARY: Instead of the rich symbolism envisioned by the Church, the altar at Notre Dame displays a misunderstanding of sacramental and liturgical theology. The altar placed at the center of ...

7.5MM F2.8 fisheye mirrorless camera lens, lens structure of 8 groups and 9PCS. Upgraded product, optimizes the light way for clearer imaging. Z mount, suitable for Nikon Z6 Z7 Z50 and other ...