The aim of this study is to determine the effect of stress ball use during cataract surgery on patients' pain, fear, and satisfaction levels.

Cataract is a condition in which the normally transparent lens of the eye or its capsule (the transparent membrane surrounding the lens) becomes cloudy or opaque, blocking the passage of light from the lens to the retina. Cataract disease, which increases with age, is a major cause of vision loss worldwide, especially in individuals aged 40 and older. Risk factors for cataracts include age, diabetes, smoking, and prolonged exposure to sunlight. Except for galactosemic cataracts, surgical intervention is the only effective treatment for cataracts. Cataract surgeries (phacoemulsification) were initially performed under general anesthesia or regional block, but today they are primarily performed using topical anesthesia. Patients who undergo topical anesthesia may experience fear and anxiety due to the unfamiliarity of the operating room environment and the fact that they are conscious. The main reasons for these feelings are the fear that the surgery will be painful, that it will fail, that vision will deteriorate, or that vision will be completely lost. Patients may also experience fear of moving their head or eyes during surgery, coughing, or being unable to cooperate with the surgeon. Studies indicate that patients who undergo surgery with a high level of fear also experience a higher level of pain after surgery. Pain can increase the difficulty of the surgery and result in complications by reducing patients' willingness to cooperate during surgery and their satisfaction with the surgery. Pain management during cataract surgery not only reduces pain and anxiety but also improves cooperation with the patient during the procedure. For this reason, it is emphasized that providing pain management during cataract surgery is particularly important. Today, non-pharmacological methods are used alongside pharmacological methods to control the pain, stress, and fear experienced by patients during the intraoperative process. Non-pharmacological methods are effective in reducing preoperative anxiety, fear of surgery, and anticipated pain. There are many non-pharmacological methods (stress balls, aromatherapy, music therapy, hand massage, virtual reality glasses, etc.) used to reduce patients' fears and ensure their comfort during surgery, and one of the important methods is the use of stress balls. Stress balls are an effective method for distracting patients because they are accessible and inexpensive. Stress balls are an effective distraction method for patients due to their accessibility and low cost. Evidence from previous studies suggests that using stress balls during medical procedures, such as cataract surgery and endoscopy, may help reduce patients' pain levels and increase their satisfaction. Knowledge about the effect of emotional factors such as pain perception and fear on the course of cataract surgery and their effects on the healing process of the eye is of great importance. When effective methods are applied to eliminate or reduce the effect of these factors, both the success of the surgery and the patient's satisfaction and quality of life can be improved.

Therefore, the study was designed to determine the effect of using a stress ball, a non-pharmacological method, during cataract surgery on patients' pain, fear, and satisfaction levels. The sample size of the study was calculated using G*Power 3.1.9.7 based on the data from a similar study in the literature14, using a t-test for the difference between two independent means, with 0.80 power, 95% confidence (1-α), an effect size of f=0.66, and a one-tailed hypothesis assumption.The minimum sample size was calculated to be 60. The following will be used to collect data: "Patient Information Form," "Visual Analogue Scale (VAS)," "Visual Comparison Scale for Satisfaction," and "Surgical Fear Questionnaire". Data will be analyzed using the IBM SPSS Statistics 29.0 software package, and statistical significance will be assessed at the p<0.05 level.

Inclusion Criteria:

• Individuals aged 18 years or older,
• Without hearing or cognitive impairments,
• Without any neurological conditions that would prevent squeezing a stress ball,
• Without any physical limitations in the hands or arms that would prevent squeezing a stress ball,
• Individuals undergoing cataract surgery for the first time will be included.

Exclusion Criteria:

• Under 18 years of age,
• Change in anesthesia type during surgery (from topical anesthesia to general anesthesia)
• Patients scheduled for cataract surgery under general anesthesia,
• Patients with psychiatric disorders,
• Patients diagnosed with uncontrolled hypertension,
• Patients who used any analgesic or anxiolytic prior to surgery will not be included in the study.

Because the data collection process is ongoing and has not yet been completed.