A fluid level indicator (50) for indicating the fluid level in an ophthalmic irrigation and/or aspiration system comprises a chamber (10) configured for holding a surgical fluid (F). The chamber (10) comprises at least one fluid port (72; 74) and a pressure port (71) for connection to a pressure source (20). A channel (140) extends from the chamber (10). The fluid level indicator (50) comprises a float (160) having a float body (162) disposed within the chamber (10) and a stem (164) extending from the float body (160) into the channel (10). The float body (160) is configured to move with the level of fluid within the chamber (10), thereby moving the stem (164) along the channel (140) extending from the chamber (10). The position of the stem (164) within the channel (40) indicates the fluid level within the chamber (10).

A laser rod surface elevation table (L-RSET) includes a sensor arm coupled to a stepper motor and a screw frame. A screw interconnects the motor and frame, while a screw carriage interconnects the screw and a sensor carriage. A laser sensor is mounted to the sensor carriage. A controller includes at least one processor operatively coupled to the sensor and motor. The processor processes measurement values in a data structure and performs functions to actuate the motor and sensor. The data structure represents a quasi-unique topographical measurement project, and is configured with the measurement values, including a radius value R which defines an area, a start point value X and a stop point value Y for positioning the screw carriage, a speed value S for speed of advancement of the screw carriage, an interval value I for measurement interval, and a points value N for points of measurement per measurement interval.

A fluid level indicator (50) for indicating the fluid level in an ophthalmic irrigation and/or aspiration system comprises a chamber (10) configured for holding a surgical fluid (F). The chamber (10) comprises at least one fluid port (72; 74) and a pressure port (71) for connection to a pressure source (20). A channel (140) extends from the chamber (10). The fluid level indicator (50) comprises a float (160) having a float body (162) disposed within the chamber (10) and a stem (164) extending from the float body (160) into the channel (10). The float body (160) is configured to move with the level of fluid within the chamber (10), thereby moving the stem (164) along the channel (140) extending from the chamber (10). The position of the stem (164) within the channel (40) indicates the fluid level within the chamber (10).

A water level indicator, and a self-watering planter containing same. The water level indicator having a top end and a bottom end, and a plurality of pushrods, each of the pushrods comprising an indicator flag cap and a float. The floats on each of the pushrods may each arranged such that the indicator flag cap of each pushrod is pushed towards the top end when liquid container is filled to different levels.

A water level indicator, and a self-watering planter containing same. The water level indicator having a top end and a bottom end, and a plurality of pushrods, each of the pushrods comprising an indicator flag cap and a float. The floats on each of the pushrods may each arranged such that the indicator flag cap of each pushrod is pushed towards the top end when liquid container is filled to different levels.

A liquid level indicator and a liquid container, such as a self-watering planter, containing same. The liquid level indicator having a top end and a bottom end, and a plurality of floating pushrods, each comprising an indicator flag cap. Each of the floating pushrods arranged such that the indicator flag cap of each pushrod is pushed towards the top end when liquid container is filled to different levels.

A liquid level indicator and a liquid container, such as a self-watering planter, containing same. The liquid level indicator having a top end and a bottom end, and a plurality of floating pushrods, each comprising an indicator flag cap. Each of the floating pushrods arranged such that the indicator flag cap of each pushrod is pushed towards the top end when liquid container is filled to different levels.

A liquid level indicator and a liquid container, such as a self-watering planter, containing same. The liquid level indicator having a top end and a bottom end, and a plurality of floating pushrods, each comprising an indicator flag cap. Each of the floating pushrods arranged such that the indicator flag cap of each pushrod is pushed towards the top end when liquid container is filled to different levels.

A liquid level indicator and a liquid container, such as a self-watering planter, containing same. The liquid level indicator having a top end and a bottom end, and a plurality of floating pushrods, each comprising an indicator flag cap. Each of the floating pushrods arranged such that the indicator flag cap of each pushrod is pushed towards the top end when liquid container is filled to different levels.

A water level indicator, and a self-watering planter containing same. The water level indicator having a top end and a bottom end, and a plurality of pushrods, each of the pushrods comprising an indicator flag cap and a float. The floats on each of the pushrods may each arranged such that the indicator flag cap of each pushrod is pushed towards the top end when liquid container is filled to different levels.