New eye lens aims to sharpen Mid-Range sight after cataracts
NCT ID NCT06479148
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested a new type of artificial lens (enVista Aspire) for people having cataract surgery. The goal was to see if it improves intermediate vision, like seeing a computer screen, better than standard lenses. The trial was stopped early and included 27 adults aged 22 and older.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- enVista Aspire intraocular lens (a device implanted in the eye during cataract surgery)
- What this could lead to
- If successful, this lens could improve intermediate vision (e.g., seeing a computer screen) after cataract surgery, reducing the need for glasses.
- What could go wrong
- The trial was terminated early with only 27 participants, so results are limited. Risks include standard cataract surgery complications like infection or inflammation.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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27 people
The number who actually took part.
- Started
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Aug 2024
- Finished
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Dec 2024
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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22 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Subjects must be 22 years of age or older on the date the Informed Consent Form (ICF) is signed. 2. Subjects must have the capability to understand and provide informed consent on the Institutional Review Board (IRB)/Independent Ethics Committee (IEC) approved Informed Consent Form (ICF) and authorization as appropriate for local privacy regulations. 3. Subjects must have a Best-corrected Distance Visual Acuity (BCDVA) worse than 20/40 in each eye, with or without a glare source, due to a clinically significant cataract (cortical, nuclear, subcapsular, or combination) that is considered amenable to treatment with standard phacoemulsification cataract extraction and capsular IOL implantation. 4. Subjects must have a BCDVA projected to be better than 20/32 after IOL implantation in each eye as determined by the medical judgment of the Principal Investigator. 5. Subjects must have clear intraocular media other than the cataract in both eyes. 6. Have discontinued use of contact lenses for at least 2 weeks (for hard or toric lenses) or 3 days (for soft contact lenses) prior to the pre-operative examination, and through the day of surgery and must be willing to refrain from use of contact lenses throughout the clinical investigation. 7. Contact lens wearers must demonstrate a stable refraction (within ±0.50 D for both sphere and cylinder) in both eyes, as determined by distance manifest refraction on two consecutive examination dates at least one week apart after discontinuation of contact lens wear. 8. Subjects must require an IOL power from +18.0 diopter (D) to +26.0 D in both eyes. 9. Subjects must be willing and able to comply with all treatment and follow-up Clinical Investigation visits and procedures, and to undergo second eye surgery on the same day as the first eye surgery. Illiterate subjects must be able to identify letters as required for the assessments. Exclusion Criteria: 1. Subjects who have used an investigational drug or device within 30 days prior to screening visit and/or will participate in another investigation during the period of Clinical Investigation participation. 2. Subjects who have any corneal pathology (e.g., significant scarring, guttata, inflammation, edema, dystrophy, etc.) in either eye. Stable pterygium that minimally encroaches on the corneal surface is allowed. 3. Subjects who have significant anterior segment pathology that might increase intraoperative risk or compromise IOL stability (e.g., pseudoexfoliation syndrome, synechiae, iris atrophy, traumatic cataract, lens subluxation, traumatic zonulolysis, zonular dialysis, evident zonular weakness or dehiscence, hypermature or brunescent cataract, etc.) in either eye. 4. Subjects who have uncontrolled glaucoma in either eye. 5. Subjects who have previous retinal detachment or clinically significant retinal pathology involving the macula in either eye. 6. Subjects who have proliferative or non-proliferative diabetic retinopathy in either eye. 7. Subjects who have a congenital ocular anomaly (e.g., aniridia, congenital cataract) in either eye. 8. Subjects using any systemic or topical drug known to interfere with visual performance, pupil dilation, or iris structure within 30 days of enrollment or during the Clinical Investigation. 9. Subjects who have a history of chronic or recurrent inflammatory eye disease (e.g., iritis, scleritis, iridocyclitis, or rubeosis iridis) in either eye. 10. Subjects who have a visual disorder, other than cataracts, that could potentially cause future acuity losses to a level of BCDVA 20/100 or worse in either eye. 11. Subjects who have had previous intraocular or corneal surgery in either eye, with the exception of laser trabeculoplasty. 12. Subjects with any preoperative infectious conjunctivitis, keratitis, or uveitis in either eye within 30 days prior to enrollment. 13. Subjects who have a preoperative corneal astigmatism ≥ 2.0 D in either eye as confirmed by Corneal Topography, irregular astigmatism, or skewed radial axis (note: corneal incisions intended specifically to reduce astigmatism are not allowed during the Clinical Investigation). 14. Subjects who cannot achieve a minimum pharmacologic pupil dilation of 5.0 mm in both eyes. 15. Subjects who may be expected to require a combined or other secondary surgical procedure in either eye. 16. Subjects who during the first cataract extraction experience an anterior or posterior capsule tear or rupture, zonular dialysis, significant iris trauma, or other complication that may cause untoward effects in the judgment of the Principal Investigator. 17. Females of childbearing potential (those who are not surgically sterilized or at least 12 months postmenopausal) are excluded from enrollment in the Clinical Investigation if they are currently pregnant or plan to become pregnant during the Clinical Investigation. Females of childbearing potential must be willing to practice effective contraception for the duration of the Clinical Investigation. 18. Subjects with any other serious ocular pathology or underlying systemic medical condition (e.g., uncontrolled diabetes) or circumstance that, based on the Principal Investigator's judgment, poses a concern for the subjects' safety or could confound the results of the Clinical Investigation. 19. Subjects who have current or previous usage of an alpha-1-selective adrenoceptor blocking agent or an antagonist of alpha 1A adrenoceptor (e.g., Flomax® (tamsulosin hydrochloride (HCl)), Terazosin, or Cardura). 20. Subjects with abnormal pupillary dilation dynamics (as determined by the medical judgment of the Principal Investigator) or eccentric or ectopic pupils in either eye.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Site 101 Centro Oftalmológico Robles
Santa Rosa de Copán, Copán Department, 41101, Honduras
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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