An eye treatment apparatus (100; 200; 300; 400; 500; 600; 700; 1000; 1100; 1200; 1300; 1400; 1500; 1600; 1700; 1800; 1900) wearable on a sclera of an eye, the eye treatment apparatus comprising: an annular body (110; 210; 310; 410; 510; 610; 702; 1110; 1210; 1310; 1410; 1510; 1610; 1710; 1810; 1910) defining a hollow optical zone (120; 220; 320; 420; 520; 620; 1120; 1220; 1320; 1420; 1520; 1620; 1720; 1820; 1920), wherein: the annular body; is defined by an inner perimeter, an outer perimeter that surrounds the inner perimeter, a top surface between the inner perimeter, and the outer perimeter, and a bottom surface opposite the top surface, the inner perimeter surrounds the hollow optical zone, and a shortest distance between two opposite points of the inner perimeter is between eight and twelve millimeters; a plurality of therapeutic liquid storage chambers (710; 1010; 1140, 1240; 1340; 1440; 1480; 1540; 1580; 1642; 1644; 1742; 1744) disposed within the annular body (702; 1110; 1210; 1310; 1410; 1510; 1610; 1710); a plurality of therapeutic liquid outlets (670; 750; 1040; 1150; 1270; 1350; 1450; 1550; 1590; 1652; 1654; 1750; 1850; 1950), each therapeutic liquid outlet coupled with a separate one of the plurality of therapeutic liquid storage chambers (710; 1010; 1140, 1240; 1340; 1440; 1480; 1540; 1580; 1642; 1644) and disposed within the inner perimeter, the outer perimeter, or the bottom surface; and a pressure chamber (720; 1020; 1130; 1230; 1330; 1430; 1470; 1530; 1570; 1630; 1730; 1830; 1930) disposed within the annular body, the pressure chamber configured to actuate the plurality of therapeutic liquid storage chambers. an annular body (110; 210; 310; 410; 510; 610; 702; 1110; 1210; 1310; 1410; 1510; 1610; 1710; 1810; 1910) defining a hollow optical zone (120; 220; 320; 420; 520; 620; 1120; 1220; 1320; 1420; 1520; 1620; 1720; 1820; 1920), wherein: the annular body; is defined by an inner perimeter, an outer perimeter that surrounds the inner perimeter, a top surface between the inner perimeter, and the outer perimeter, and a bottom surface opposite the top surface, the inner perimeter surrounds the hollow optical zone, and a shortest distance between two opposite points of the inner perimeter is between eight and twelve millimeters; the annular body; is defined by an inner perimeter, an outer perimeter that surrounds the inner perimeter, a top surface between the inner perimeter, and the outer perimeter, and a bottom surface opposite the top surface, the inner perimeter surrounds the hollow optical zone, and a shortest distance between two opposite points of the inner perimeter is between eight and twelve millimeters; a plurality of therapeutic liquid storage chambers (710; 1010; 1140, 1240; 1340; 1440; 1480; 1540; 1580; 1642; 1644; 1742; 1744) disposed within the annular body (702; 1110; 1210; 1310; 1410; 1510; 1610; 1710); a plurality of therapeutic liquid outlets (670; 750; 1040; 1150; 1270; 1350; 1450; 1550; 1590; 1652; 1654; 1750; 1850; 1950), each therapeutic liquid outlet coupled with a separate one of the plurality of therapeutic liquid storage chambers (710; 1010; 1140, 1240; 1340; 1440; 1480; 1540; 1580; 1642; 1644) and disposed within the inner perimeter, the outer perimeter, or the bottom surface; and a pressure chamber (720; 1020; 1130; 1230; 1330; 1430; 1470; 1530; 1570; 1630; 1730; 1830; 1930) disposed within the annular body, the pressure chamber configured to actuate the plurality of therapeutic liquid storage chambers.