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Which of the following types of needles is frequently used in ophthalmologic procedures?

The pictured instrument is:

Phacoemulsification is one method of ____.

Recession/resection is the surgical treatment for ____.

This instrument would most likely be used on which of the following cases:

Enucleation if the removal of ____.

An ophthalmic ointment that is made of tobramycin and dexamethasone is marketed under what trade name?

Cryotherapy uses _______ to seal retinal tears and holes.

This question is for you to take a momentary pause to reflect on the knowledge you gained while studying for this exam.  Once you are ready to proceed, chose true and continue. 

You must type your answer into the given box and show all your work. For credit, please follow the instructions below and show all the steps. Step 1. Type the provided values along with their units in the problem, and designate a specific symbol (standard) for each known value and value that you need to determine.  Step 2. Type the general equations that you will use to solve the problem using the variables (no numbers yet). Step 3. Show steps to utilize the provided values and their respective units to calculate the answer for the value you need to determine. Question:  A dancer is spinning with his arms extended. In this position, his rotational inertia is 2.0 kg m2. During the spin, the dancer pulls the arms close to his body. In this position, his rotational inertia is 1.0 kg m2. Ignore friction with the air or with the floor. If the dancer’s final angular velocity is 5.0 rev/min, what was his initial angular velocity with the arms extended?