A variable-applanation patient interface, comprising: a lens support system, attachable to a distal end of an ophthalmic surgical laser system; a contact lens, supported by the lens support system, configured to make contact with an eye-surface; and an adjustable coupler, coupled to at least one of the lens support system and the contact lens, and comprising a suction ring, adapted to form an airtight contact with an eye surface, and, the adjustable coupler configured: to be coupled to a non-central region of the eye-surface, to accommodate the contact lens to contact a central region of the eye-surface with a central applanation, accompanied by an application of a first suction to the suction ring, to accommodate the contact lens to contact an extended region of the eye-surface larger than the central region with an extended applanation accompanied by an application of a second suction to the suction ring, and to enable a change between the central applanation and the extended applanation, wherein the contact lens making contact with the central region of the eye-surface enables the ophthalmic surgical laser system to perform at least one of a cataract laser procedure, a capsulotomy, a lens lysis, a photodisruption, and a lens chop of a lens of the eye; and the contact lens making contact with the extended region of the eye-surface enables the ophthalmic surgical laser system to form at least one of a limbal relaxing incision, an arcuate incision, an anterior chamber access cut, an anterior chamber entry cut, a flap-cut and a corneal refractive procedure. a lens support system, attachable to a distal end of an ophthalmic surgical laser system; a contact lens, supported by the lens support system, configured to make contact with an eye-surface; and an adjustable coupler, coupled to at least one of the lens support system and the contact lens, and comprising a suction ring, adapted to form an airtight contact with an eye surface, and, the adjustable coupler configured: to be coupled to a non-central region of the eye-surface, to accommodate the contact lens to contact a central region of the eye-surface with a central applanation, accompanied by an application of a first suction to the suction ring, to accommodate the contact lens to contact an extended region of the eye-surface larger than the central region with an extended applanation accompanied by an application of a second suction to the suction ring, and to enable a change between the central applanation and the extended applanation, wherein the contact lens making contact with the central region of the eye-surface enables the ophthalmic surgical laser system to perform at least one of a cataract laser procedure, a capsulotomy, a lens lysis, a photodisruption, and a lens chop of a lens of the eye; and to be coupled to a non-central region of the eye-surface, to accommodate the contact lens to contact a central region of the eye-surface with a central applanation, accompanied by an application of a first suction to the suction ring, to accommodate the contact lens to contact an extended region of the eye-surface larger than the central region with an extended applanation accompanied by an application of a second suction to the suction ring, and to enable a change between the central applanation and the extended applanation, wherein the contact lens making contact with the central region of the eye-surface enables the ophthalmic surgical laser system to perform at least one of a cataract laser procedure, a capsulotomy, a lens lysis, a photodisruption, and a lens chop of a lens of the eye; and the contact lens making contact with the extended region of the eye-surface enables the ophthalmic surgical laser system to form at least one of a limbal relaxing incision, an arcuate incision, an anterior chamber access cut, an anterior chamber entry cut, a flap-cut and a corneal refractive procedure. a limbal relaxing incision, an arcuate incision, an anterior chamber access cut, an anterior chamber entry cut, a flap-cut and a corneal refractive procedure.