Mold and method for casting ophthalmic lenses

A method of casting an ophthalmic lens, said method comprising:

• providing a mold defining a lens forming cavity having a circumferential edge;
• positioning the mold with the circumferential edge of the lens forming cavity lying in a plane that is inclined at an angle relative to horizontal;
• delivering lens forming material into the lens forming cavity;
• and
• placement of a body into the mold to form a haptic bore in the lens.

A method of casting an ophthalmic lens, said method comprising:

• providing a mold defining a lens forming cavity having a circumferential edge;
• positioning the mold with the circumferential edge of the lens forming cavity lying in a plane that is inclined at an angle relative to horizontal;
• and
• delivering lens forming material into the lens forming cavity;
• wherein the mold comprises first and second mold halves each having an inlet hole and a vent hole;
• and wherein said method further comprises engaging the first mold half with the second mold half and moving the first mold half relative to the second mold half between a fill position wherein the inlet holes and vent holes of the first and second mold halves are aligned, and a sealed position wherein the inlet holes and vent holes of the first and second mold halves are not aligned.

A method of casting an ophthalmic lens, said method comprising:

• providing a mold defining a lens forming cavity having a circumferential edge;
• positioning the mold with the circumferential edge of the lens forming cavity lying in a plane that is inclined at an angle relative to horizontal;
• and
• delivering lens forming material into the lens forming cavity;
• wherein the mold comprises first and second mold halves slidably engaging one another;
• and wherein said method comprises moving the first and second mold halves relative to one another between an open position for delivery of the lens forming material into the lens forming cavity and a closed position for curing the lens forming material to form the lens.

A method of casting an ophthalmic lens, said method comprising:

• providing a mold defining a lens forming cavity having a circumferential edge;
• positioning the mold with the circumferential edge of the lens forming cavity lying in a plane that is inclined at an angle relative to horizontal;
• and
• delivering lens forming material into the lens forming cavity by at least partially filling first and second mold halves with a lens forming material, and bringing the mold halves into engagement with one another to combine the lens forming material into a single mass.

A method of casting an ophthalmic lens, said method comprising:

• providing a mold defining a lens forming cavity having a circumferential edge;
• positioning the mold with the circumferential edge of the lens forming cavity lying in a plane that is inclined at an angle relative to horizontal;
• and
• delivering lens forming material into the lens forming cavity by submerging the mold at least partially within a container of lens forming material.

A method of casting an ophthalmic lens, said method comprising:

• providing a mold defining a lens forming cavity having a circumferential edge;
• positioning the mold with the circumferential edge of the lens forming cavity lying in a plane that is inclined at an angle relative to horizontal;
• and
• delivering lens forming material into the lens forming cavity under sufficient pressure to release fluid from a pressure release portion of the mold.

A method of casting an ophthalmic lens, said method comprising:

• providing a mold defining a lens forming cavity having a circumferential edge;
• positioning the mold with the circumferential edge of the lens forming cavity lying in a plane that is inclined at an angle relative to horizontal;
• and
• delivering lens forming material into the lens forming cavity from a reservoir portion of the mold.

A method of casting an ophthalmic lens, said method comprising:

• at least partially filling a first mold half with lens forming material;
• at least partially filling a second mold half with lens forming material;
• and
• bringing the first and second mold halves into engagement with one another to define a lens forming cavity.

A method of casting an ophthalmic lens, said method comprising:

• providing a mold cavity within a mold, the cavity defining the ophthalmic lens to be cast;
• introducing a lens forming material into the mold cavity through an opening in the top portion of the mold;
• venting fluid through at least one opening in a top portion of the mold;
• and
• curing the lens forming material in the mold cavity to form the lens.