Apparatus and method for securing ocular tissue

A system comprising:

• an ocular fixation device comprising:
• a first ring comprising first projections configured to contact ocular tissue of an eye;
• and
• a second ring comprising second projections configured to contact the ocular tissue of the eye;
• wherein the first and second projections are arranged to contact an outer surface of the eye;
• wherein the first and second projections are also arranged to grasp the ocular tissue of the eye between the first and second projections based on a first rotation of at least one of the rings that narrows a spacing between each first projection and an adjacent second projection;
• wherein the first and second projections are further arranged to release the ocular tissue of the eye based on a second rotation of at least one of the rings that widens the spacing between each first projection and its adjacent second projection;
• and
• wherein each first projection and its adjacent second projection are angled towards each other;
• and
• a surgical tool mountable on the ocular fixation device.

An apparatus comprising:

• a first ring comprising a plurality of first teeth configured to contact an outer surface of an eye;
• and
• a second ring comprising a plurality of second teeth configured to contact the outer surface of the eye;
• wherein the first and second teeth are arranged to grasp ocular tissue of the eye between the first and second teeth based on a first rotation of at least one of the rings that narrows a spacing between each first tooth and an adjacent second tooth;
• wherein the first and second teeth are also arranged to release the ocular tissue of the eye based on a second rotation of at least one of the rings that widens the spacing between each first tooth and its adjacent second tooth;
• and
• wherein each first tooth and its adjacent second tooth are angled towards each other.

An apparatus comprising:

• a first ring comprising a plurality of first projections configured to contact an outer surface of an eye;
• and
• a second ring adjacent to the first ring, the second ring comprising a plurality of second projections configured to contact the outer surface of the eye;
• wherein the first and second rings are configured such that (i) a first rotation of at least one of the rings causes the first projections to move towards adjacent second projections to thereby narrow spacings between the first projections and the adjacent second projections and grasp ocular tissue of the eye between the first and second projections and (ii) a second rotation of at least one of the rings causes the first projections to move away from the adjacent second projections to thereby widen the spacings between the first projections and the adjacent second projections and release the ocular tissue of the eye;
• and
• wherein each first projection and its adjacent second projection are angled towards each other.