Cataracts are a clouding of the lens of the eye, which can lead to blurred vision, glare, and eventually blindness if left untreated.

Clinical trials are conducted to evaluate the safety and effectiveness of new treatments, such as drugs, devices, or procedures.

Clinical trials are typically conducted on people who have a specific disease or condition that the trial is investigating.

Clinical trials are carefully designed to minimize the risks to participants, and the potential benefits of participating in a trial often outweigh the risks.

Informed consent is a legal requirement for all clinical trials, and it is a process by which participants are informed about the risks and benefits of the trial and have the opportunity to withdraw from the trial at any time.

A placebo is a treatment that is known to be ineffective, and it is used in clinical trials to compare the effectiveness of a new treatment to a known treatment.

A control group is a group of participants who receive the standard treatment for a disease or condition, and they are used to compare the effectiveness of a new treatment to the standard treatment.

A data monitoring committee is a group of experts who review the data from a clinical trial on a regular basis to ensure that the trial is being conducted safely and ethically, and that the data is being collected and analyzed correctly.

A statistician is responsible for analyzing the data from a clinical trial to determine whether the new treatment is effective and safe.

An institutional review board is responsible for reviewing the protocol for a clinical trial, approving the trial, and monitoring the trial to ensure that it is being conducted safely and ethically.

A clinical research coordinator is responsible for recruiting participants for a clinical trial, conducting the trial, and collecting data from the participants.

A principal investigator is the leader of the research team and is responsible for the design, conduct, and analysis of a clinical trial.

A sponsor is an individual, organization, or company that provides funding for a clinical trial.

A data safety monitoring board is a group of experts who review the data from a clinical trial on a regular basis to ensure that the trial is being conducted safely and ethically, and that the data is being collected and analyzed correctly. They can make recommendations to the principal investigator or even stop the trial if they believe it is unsafe.

A patient advocate is a person who represents the interests of the participants in a clinical trial, provides support to the participants, and educates the participants about the trial.