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Rx Comparison Calculator

Compare contact lens parameters side by side

Live data
Parameter
Acuvue OasysSilicone Hydrogel Monthly
Dailies Total1Water Gradient Daily
Dk/t147 × 10⁻⁹156 × 10⁻⁹
Water Content38%33% → 80%
Base Curve8.4 / 8.8 mm8.5 mm
Modulus0.72 MPa0.40 MPa
Center Thickness0.070 mm0.090 mm
MaterialSenofilcon ADelefilcon A

Clinical note: Higher Dk/t favors overnight wear; lower modulus reduces mechanical lid interaction in dry eye patients.

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Binocular Vision
Hot2h ago

Ortho-K zone diameter for -4.50 myope — getting decentered treatment zones

Patient is a 9-year-old with -4.50/-0.75 × 180 OD. Using 10.6mm total diameter lens. Treatment zone consistently decentering inferiorly by about 0.8mm...

MW
Dr. Marcus Webb
Myopia Management, Portland OR
Top reply

Try dropping the landing zone clearance by 5 microns and add 0.1mm to the return zone width. The inferior decentration suggests your sagittal depth is slightly off.

Dr. Sunita Krishnamurthy

23412
Dry Eye
4h ago

Swapping from Restasis to Xiidra — patient tearful about cost

GoodRx has Xiidra at $340/mo in our area. Patient has been on Restasis 4 years with moderate response...

TO
Dr. Tonya Okafor
Private Practice, Atlanta GA
Top reply

Vevye (0.1% cyclosporine in castor oil) has a PAP program that gets most patients under $40/mo. Worth the 2-minute call to their specialty pharmacy.

Dr. Ben Harlow

18289
Practice Ownership
Hot1d ago

Practice Ownership AMA — just closed my cold-start after 14 months

Hit breakeven at month 11. Happy to answer anything about buildout costs, EHR selection, insurance credentialing timelines...

CF
Dr. Camille Fontaine
Owner, New Orleans LA
Top reply

What was your total buildout cost and how long did credentialing with VSP take? Starting my cold-start planning now.

Dr. Raj Patel

671840
Contact Lenses
6h ago

Daily vs monthly silicone hydrogel — the modulus argument is being oversimplified

Seeing a lot of posts treating lower modulus as universally better. But in patients with unstable tear films...

EV
Dr. Elena Vasquez
Cornea & Contact Lens, Miami FL
Top reply

Agreed. My dry eye patients with meibomian gland dysfunction actually do WORSE in water-gradient lenses. Lipid layer interaction matters.

Dr. James Whitfield

31607
Referrals
8h ago

First pterygium referral — how do I frame the conversation?

New grad here. Patient is 34, pterygium encroaching 2mm onto cornea, asymptomatic. Ophthalmologist I refer to has a 3-month wait...

AC
Dr. Aisha Coleman
New Grad, Phoenix AZ
Top reply

Tell them: "It's not urgent yet, but we want to document it before it affects your vision axis." Photo them every 6 months. Refer at 3mm or if symptomatic.

Dr. Marcus Webb

12198
Member Directory

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Dr. Priya Nair

OD, FAAO

San Jose, CA

Myopia ManagementOrtho-K

Running a myopia management-focused practice. 11 years post-grad. Happy to consult on Ortho-K fitting and MiSight protocols.

142 threads11 yrs exp
Scleral Expert
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Dr. Marcus Webb

OD, Dipl ABO

Portland, OR

Scleral LensesCornea

Specialty contact lens practice. Stocks 4 scleral trial sets. Available for second opinions on irregular cornea fits.

89 threads8 yrs exp
New Grad
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Dr. Aisha Coleman

OD

Phoenix, AZ

New GradPrimary Care

Class of 2025. Building my first year of clinical experience. Asking lots of questions, learning from everyone here.

23 threads1 yrs exp
Low Vision Specialist
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Dr. Elena Vasquez

OD, FAAO, Dipl CL

Miami, FL

Low VisionPediatric

Low vision and pediatric specialist. 15 years experience. Available for complex amblyopia and visual processing consults.

207 threads15 yrs exp
Dry Eye Pro
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Dr. Ben Harlow

OD

Nashville, TN

Dry EyeMeibography

Corporate OD trying to practice real dry eye medicine inside a retail setting. Meibography, LipiFlow, IPL referrals.

56 threads6 yrs exp
Practice Owner
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NPI Verified

Dr. Camille Fontaine

OD, MBA

New Orleans, LA

Practice OwnerCold-Start

Just opened my cold-start practice. Sharing everything I learned about buildout, EHR, and insurance credentialing.

74 threads7 yrs exp
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Scleral Lens Fitting for Post-LASIK Ectasia: A Case-Based Approach

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Myopia Management, Portland OR
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Dry Eye Disease Staging — From TFOS DEWS II to the Chair

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