Stock-Based Compensation Expense - Additional Information (Details) - USD ($) $ in Millions		12 Months Ended
	Jul. 28, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2023	Jan. 01, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Conversion of preferred stock		8,364,218	11,816,582
Common stock issued (in shares)		36,139,513	28,268,389
Total unrecognized expense related to unvested stock options		$ 8.3	$ 6.1
Share-based Compensation, Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation, Terms of Award				Stock option awards are granted with an exercise price of no less than 100% of estimated fair market value on the date of grant. Time based awards generally vest over four years as follows, subject to the optionee’s continuing service: (i) one fourth of the total number of shares vest and become exercisable on the one-year anniversary and then 1/48th of the total number of shares subject to the option vest and become exercisable on each monthly anniversary thereafter for the remaining three years; or (ii) 1/48th of the total number of shares subject to the option vest and become exercisable each month over four years.
Stock-Based Compensation, Vesting period				4 years
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Conversion of preferred stock		650,357	492,862
Unvested at December 31, 2023		650,357
2021 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock available for issuance	2,420,135
Conversion of preferred stock					1,130,735	1,094,670
Common stock issued (in shares)	7,260,406
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum	4.00%
Weighted average period for recognition of expenses		2 years 3 months 18 days
2021 Plan [Member] | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Conversion of preferred stock	4,569,530
The 2021 ESPP Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Conversion of preferred stock	1,452,081					273,667
Common stock issued (in shares)	664,976	577,847
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum	1.00%
The 2021 ESPP Plan [Member] | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum	85.00%
The Calhoun Vision, Inc. 2015 Equity Incentive Plan and the Calhoun Vision, Inc. 2006 Stock Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Intrinsic Value of Vested Options		$ 121.3	$ 15.9
Intrinsic Value of Outstanding Options		185.0	16.4
Total Cash Received from the Exercise of Stock Options		8.4	0.8
Total Fair Value Less Strike Price of Stock Options Exercised		$ 13.7	$ 1.8
Unvested at December 31, 2023		2,539,445	2,447,687
Total unrecognized expense related to unvested stock options		$ 22.7	$ 19.1
Weighted average period for recognition of expenses		2 years 4 months 24 days	2 years 7 months 6 days