Our Expertise

Sierra | CRO

Our Expertise

Sierra CRO

At Sierra, we bring over 400 years of combined Ophthalmology experience with a consistent track record, resulting in a 99% approval rate on submitted studies. Our team of CRAs are hand selected with an average exceeding 25 years in the therapeutic area of Ophthalmology. All of whom have been instrumental in transforming vision research.

Our unique, extensive experience and specialized knowledge assures that our clients partner with a team of professionals who guide clinical trials with efficiency and the highest-quality of services.

400+ Years


99% Approval rate


25+ Year Average


Ophthalmic Studies by Therapeutic Area (in percentage)

Sierra Clinical

Ophthalmic Studies by Phase (90+ trials)

Sierra Clinical

Sierra CRO Global Footprint

Ophthalmic Therapeutic Areas

Sierra Clinical

Refractive Surgery

  • Myopia, Hyperopia, Presbyopia, Astigmatism

  • Femtosecond Lasers

  • Excimer Lasers

  • Inlays/Onlays

  • Surgical Procedures

Cataract Surgery

  • IOLs - Intraocular Lenses

  • Monofocal

  • Multifocal

  • Toric

  • Light adjustable

  • Modular

  • Femtosecond Laser
  • Pupillary Function


  • POAG, Refractory

  • Microshunts

  • Stents

  • Microstents

  • Injector Systems

  • Viscosurgical System

Dry Eye Disease

  • MGD

  • IPL

  • Heat application systems

  • Drug Comparative

Corneal Surgery

  • Cornea Blindness

  • Artificial Cornea Implant

Epithelial Defects

  • Ocular Bandage Gel

  • Artifical Tears

Keratoconus + Ectasia

  • Corneal Collagen Cross-Linking

Diagnostic + Imaging Devices

  • OCT

  • IOLMaster

  • Home Tonometry