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TerminatedNCT03101501Updated Aug 18, 2022

A Prospective Study To Evaluate The Raindrop Near Vision Inlay In Presybopic or Pseudophakic Patients Treated With Mitomycin C Following Femtosecond Flap Creation.

A Phase 4 interventional study of Mitomycin c and Raindrop Near Vision Inlay in Presbyopia, sponsored by Key-Whitman Eye Center. Terminated at 3 sites in United States. Open to participants aged 41 Years and older. Per ClinicalTrials.gov, last updated 2022-08-18.

Sponsored by Key-Whitman Eye Center · Phase 4, Interventional, and Prevention

Why this study was terminated
The manufacturing company of the Raindrop Corneal Inlay has stopped distribution or sales of the product.

From the registry’s dates

  • Primary completion was Feb 2018, 8 years 8 months ago, and no results have been posted to the registry.
Phase
Phase 4
Study type
Interventional
Enrollment
9
Allocation
Not applicable
Ages
41 Years and older
Sex
All
01

Study summary

The clinical objective of this study is to evaluate the Raindrop® Near Vision Inlay for the improvement of near vision in presbyopic or pseudophakic patients treated with low dose Mitomycin C immediately following femtosecond flap creation.

Read the detailed description

The scientific objective of this study is to evaluate the postoperative incidence of corneal reaction in patients treated with low dose Mitomycin C, immediately following femtosecond flap creation (LASIK correction if needed), and before implantation with the Raindrop corneal inlay in the non-dominant eye. The postoperative incidence of haze, visible by broad tangential illumination of the slit lamp, is known to adversely impact the safety and efficacy of the Raindrop corneal inlay. Three main strategies have been employed to minimize haze incidence after surgery: (i) perfection of the surgical technique, (ii) deeper implantation in the cornea, and (iii) extension of the steroid regimen after surgery. Haze has also been observed after another type of corneal refractive procedure, Photorefractive Keratectomy (PRK). Several prospective studies have shown that Mitomycin C, applied immediately following the PRK laser procedure, is effective in reducing the postoperative incidence of haze.

02

Conditions studied

  • Presbyopia

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03

In context

Presbyopia

324 studies on the registry are indexed under Presbyopia; 33 are open to participants now.

This study's enrollment of 9 is below the median of 61 across 265 interventional studies indexed under Presbyopia.

Browse Presbyopia studies →

Lead sponsor

This is the only study on the registry with Key-Whitman Eye Center as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
41 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

4.2.1 Presbyopic patients 41-65 years of age.

4.2.2 Pseudophakic patients at least 50 years of age.

4.2.3 Patients require a near reading add from +1.50 to +2.50 D in the non-dominant eye.

4.2.4 Patients have a photopic pupil size of at least 3.0 mm in the non-dominant eye.

4.2.5 Patients have a corneal thickness greater than or equal to 500 microns in the non-dominant eye.

4.2.6 Patients have corrected distance and near visual acuity of 20/25 or better in each eye.

4.2.7 Patients have distance corrected near visual acuity of 20/40 or worse in each eye.

4.2.8 Patients have no more than a 0.75 D difference at preop between MRSE and cycloplegic refraction spherical equivalent determined at the spectacle plane of each eye.

4.2.9 Patients have targeted MRSE from -0.5 to +1.0 D in the non-dominant eye, with no more than 0.75 D of manifest cylinder with or without LASIK.

4.2.10 Patients are willing and able to sign a written Informed Consent Form prior to any study-specific procedures.

4.2.11 Pseudophakic patients must be at least 3 months after cataract surgery.

4.2.12 Pseudophakic patients must have clear posterior capsule, open posterior capsule (post YAG Capsulotomy), or posterior capsule opacification that is not clinically significant at the opinion of the investigator.

4.2.13 Patients are willing and able to return for scheduled follow-up examinations for 24 months after the corneal inlay surgery.

Exclusion criteria

Exclusion Criteria

4.3.1 Patients with prior corneal surgery including LASIK surgery in the non-dominant eye. (Not including Astigmatic Keratotomy or Limbal Relaxing Incisions)

4.3.2 Patients with clinically significant dry eye (i.e., significant diffuse punctate staining with fluorescein and a tear breakup time less than 8 s) in either eye.

4.3.3 Patients with a planned corneal residual bed thickness that is less than 300 microns (corneal thickness - (intended ablation depth + intended flap thickness)).

4.3.4 Patients with clinically significant macular pathology based on dilated fundus exam and/or optical coherence tomography (OCT) image.

4.3.5 Patients who would be co-managed by an ophthalmologist or optometrist who is not an approved sub-investigator.

4.3.6 Patients with ocular pathology or disease (including pupil pathology such as fixated pupils) that might confound the outcome or increase the risk of adverse event in the investigator's opinion.

4.3.7 Patients taking systemic or topical medications that might confound the outcome or increase the risk of adverse event. Patients taking isotretinoin or amiodarone hydrochloride and any other medication that affects the tear film or accommodation, including but not limited to, mydriatic, cycloplegic and mitotic agents, or any other medications in the investigator's opinion.

4.3.8 Patients with known sensitivity to any planned study medications.

4.3.9 Patients with residual, recurrent, active or uncontrolled eyelid disease.

4.3.10 Patients with significant corneal asymmetry or irregular topography.

4.3.11 Patients with clinically significant anterior segment pathology.

4.3.12 Patients with any corneal abnormality, including but not limited to, slit lamp findings for corneal staining Grade 3 or higher, recurrent corneal erosion or severe basement membrane disease, and pterygium extending onto the cornea.

4.3.13 Patients with ophthalmoscopic/topographic signs of keratoconus or those who are keratoconus suspect.

4.3.14 Patients with history of Herpes zoster or Herpes simplex keratitis.

4.3.15 Pseudophakic patients that have anterior chamber IOLs, multifocal IOLs, or extended range of vision IOLs in either eye.

4.3.16 Patients with any progressive retinal disease or subjects with a history or evidence of retinal vascular occlusion and/or hypercoagulability, because of the risks associated with high pressures during suction application.

4.3.17 Patients with known history of steroid-responsive intraocular pressure increases, glaucoma, preoperative IOP > 21 mm Hg, or are otherwise suspected of having glaucoma.

4.3.18 Patients with amblyopia or strabismus or those who are at risk for developing strabismus postoperatively as determined by corneal light reflex and cover-uncover testing.

4.3.19 Patients with diabetic retinopathy, collagen, vascular, diagnosed autoimmune disease (e.g., lupus, rheumatoid arthritis, fibromylagia), immunodeficiency (e.g., HIV), connective tissue disease, or clinically significant atopic syndrome.

4.3.20 Patients on chronic systemic corticosteroid or other immunosuppressive therapy that may affect wound healing at the opinion of the investigator.

4.3.21 Patients with any type of active cancer (ophthalmic or non-ophthalmic).

4.3.22 Patients with uncontrolled infections of any kind.

4.3.23 Patients who are pregnant, lactating, of child-bearing potential and not practicing a medically approved method of birth control, or planning to become pregnant during the course of the trial, and patients with other conditions associated with fluctuation of hormones that could lead to refractive changes.

4.3.24 Patients who actively participate in contact sports (i.e., boxing, martial arts) where impacts to the face and eye are a normal occurrence.

4.3.25 Patients participating in any other ophthalmic or non-ophthalmic drug/device clinical trials during the time of this clinical investigation.

05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
9 participants (actual)

Study arms

  • Experimental
    MMC for fibrosis prevention

    no intervention is required after procedure is performed

    Drug: Mitomycin c · Device: Raindrop Near Vision Inlay

Interventions

  • DrugMitomycin c

    Low dose mitomycin C at a concentration of 0.02% will be applied a duration of 10 to 30 seconds at the time of the surgical procedure.

  • DeviceRaindrop Near Vision Inlay

    Implanted to improve near vision in Presbyopic or Pseudophakic subjects.

06

What researchers measure

Primary outcomes

  1. Uncorrected Visual Acuity

    After the inlay procedure, patients will attain functional near visual acuity in the inlay eye and functional distance acuity binocularly.

    Time frame: 24 months

Secondary outcomes

  1. Incidence of Corneal Reaction

    Patients treated with low dose mitomycin C will have minimal levels of corneal reaction.

    Time frame: 24 months

  2. Endothelial Cell Count (measured by Konan Specular Microscope)

    Patients treated with low dose mitomycin C will not lose more than 10% of their endothelial cell count from the preoperative measurement

    Time frame: 24 months

07

Study locations

3 sites
  • Chu Vision Institue
    Bloomington, Minnesota 55420, United States
  • Key-Whitman Eye Center
    Dallas, Texas 75243, United States
  • Parkhurst NuVision
    San Antonio, Texas 78229, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 18, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03101501
Lead sponsor
Key-Whitman Eye Center
Responsible party
Jeffrey Whitman, MD (President and Chief Surgeon, Key-Whitman Eye Center) — Principal investigator
First posted
Apr 5, 2017
Start date
Feb 14, 2017
Primary completion
Feb 1, 2018
Completion
Feb 1, 2018
Last update
Aug 18, 2022

Study contacts

Jeffrey Whitman, M.D.
principal investigator · Key-Whitman Eye Center

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Aug 2022. You cannot join it, but the record below documents what was studied.

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