Evidence map›Paper›PMID 32965637›Full record

ArticleOphthalmology and therapy2020

Pharmacological Therapy for Presbyopia in Patients with Previous Corneal Refractive Surgery: A Pilot Study.

Veronica Vargas, Felipe Vejarano, Jorge Alió

Open access · goldAbstract read
In one paragraph

Article in Ophthalmology and therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 30% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Presbyopia: Current Perspectives and Prospects for Patients.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 2 countries.

Veronica VargasCornea, Cataract and Refractive Surgery Department, VISSUM, Alicante, Spain.
Felipe VejaranoFundación Oftalmológica Vejarano, Popayán, Colombia.
Jorge AlióCornea, Cataract and Refractive Surgery Department, VISSUM, Alicante, Spain. jlalio@vissum.com.
Miranza · ESFundación Universitaria de Popayán · CO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo perform a pilot evaluation of a novel pharmacological therapy for presbyopia in patients with previous corneal refractive surgery.

methodsThis interventional study included 130 presbyopic patients. The patients were divided into three groups: (1) LASIK group, which included patients with previous LASIK for myopia or hyperopia; (2) previous presbyopia surgery group, including patients with previous monovision or PresbyLASIK (PresbyMAX, SCHWIND eye-tech-solutions GmbH, Kleinostheim, Germany); and (3) control group, which included presbyopes without any corneal refractive procedure. The main reason for dividing them into groups is that we hypothesized that the previous presbyopia surgery group may have better outcomes as the patients already have an increased depth of field. The uncorrected near and distance visual acuity was measured before and 2 hours after the binocular instillation of the eye drop (FOV tears), as well as the objective scatter index (OSI), and pupil diameter in photopic and scotopic conditions. Side effects were reported as well.

resultsThere was a statistically significant improvement in the uncorrected near vision in all groups (p = 0.001). Ninety-one percent of the patients included in this study gained at least one line in near vision. All patients in the previous presbyopia surgery group gained at least one line in near vision. Six patients (13.9%) in the LASIK group and five (7.6%) in the control group did not gain any lines of near vision. There was no significant difference in the OSI, there was a significant change in pupil size in scotopic conditions in all groups (p = 0.001), and 5.3% of the patients reported having a headache as a side effect of the therapy.

conclusionsTopical treatment with this pharmacological therapy offers a potential for near vision improvement in patients with previous corneal refractive surgery, especially in those with previous presbyopia surgery.

Indexed as

Corneal refractive surgeryDepth of fieldMultifocal corneaPharmacological therapy of presbyopiaPresbyopiaUncorrected near vision

Identifiers

PMID32965637
PMCPMC7708543
OpenAlexW3089060039

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.