Final answer:
Post-operative medications for cataract surgery typically include antibiotics, anti-inflammatory drugs, and analgesics. Light is dispersed by the cataract, affecting vision. Laser light used in eye surgery needs to enter the eye as parallel rays for precise treatment.
Step-by-step explanation:
Following surgical cataract removal, a combination of medications may be prescribed to promote healing, prevent infection, and manage inflammation. The three main types of drugs commonly given post-operatively are:
- Antibiotics: To prevent bacterial infections.
- Anti-inflammatories: To reduce inflammation, which can be steroids or non-steroidal anti-inflammatory drugs (NSAIDs).
- Analgesics: To manage pain related to the surgery.
In reference to cataracts, light is dispersed by the cloudiness in the lens, which causes blurring and vision decrease. Regarding the use of laser light for the repair of a retinal tear, it is crucial that the rays entering the eye remain parallel to accurately focus the energy on the retina without causing damage to other parts of the eye.