After curing in spin casting, what are the next three steps?

After curing in spin casting, what are the next three steps?

• A. Hydration, Sterilization, Packaging
• B. Hydration, Extraction, Polishing
• C. Extraction, Hydration, Finishing
• D. Hydration, Extraction, Finishing

Answer: (D)

The next three steps are hydration, extraction, and finishing. After curing in spin casting, the hydrogel lens must first hydrate to reach its intended water content and dimensional finale; this equilibration makes the lens soft, comfortable, and properly swollen to its target shape. Once hydrated, residual monomer and processing solvents need to be removed to ensure safety and clarity, so an extraction step follows to wash out unreacted materials. Finally, finishing completes the process with trimming, edge finishing, surface polishing, and quality checks to yield a smooth, properly shaped lens ready for final sterilization and packaging later in the workflow.

The next three steps are hydration, extraction, and finishing. After curing in spin casting, the hydrogel lens must first hydrate to reach its intended water content and dimensional finale; this equilibration makes the lens soft, comfortable, and properly swollen to its target shape. Once hydrated, residual monomer and processing solvents need to be removed to ensure safety and clarity, so an extraction step follows to wash out unreacted materials. Finally, finishing completes the process with trimming, edge finishing, surface polishing, and quality checks to yield a smooth, properly shaped lens ready for final sterilization and packaging later in the workflow.