Spectacle Prescription Research Articles

Non-contact characterization of compound optical elements using reflectance confocal microscopy, low-coherence interferometry, and computational ray-tracing

Advances in microscopy have enabled us to see at unprecedented depths and resolutions, even breaking the diffraction-limit by several fold. These improvements have come at the expense of system complexity with microscopes routinely employing multiple objective lenses and custom optical relays. Optimal system design is paramount for imaging performance, but research systems are limited by the use of commercial components because optical prescriptions are often inaccessible. System performance can be further degraded when these components are implemented in nonstandard configurations outside of manufacturer specifications. Here, we describe a method for characterization of compound optical elements including curvatures, material and air-gap thicknesses, and glass types. We present validation data for doublets and a commercial broadband scan lens. Our method is both non-contact and non-destructive, and we believe it addresses a unique gap in optical design that may be extended to broad applications in both research and industrial manufacturing.

Factors Affecting the Difference in Refractive Error According to Pupil Size in Myopia

Purpose : In this study, we investigated the factors that influence the difference in refractive error according to pupil size. Methods : The subjects were 75 eyes(75 adults) of 18 to 58 years of age with myopia and no history of eye disease or surgery except cataract and a best-corrected visual acuity(BCVA) of 1.0 or higher. The i.profilerplus(Zeiss, Germany) was used to obtain the manifest refraction(MR) and corneal and ocular aberration in the 5 mm and 3 mm area of the pupil in the half dark room(5~50 lx). To compare the measured values according to pupil size paired t-test was used. The Spearman correlation test was used to examine the correlation between the difference in spherical equivalent(SE) depending on pupil size and high order aberration. Multiple regression analysis was performed to evaluate the factors affecting the difference in refractive error according to pupil size Results : The mean SE were –4.08±2.90 D and -3.84±2.95 D at 5 mm and 3 mm, respectively (p<0.001). There was a negative correlation between the difference in SE depending on pupil size and ocular higher-order aberration (r=-0.676, p<0.001). After adjusting age and sex, spherical aberration(Z40) and vertical astigmatism(Z4-2) were found to affect the difference in SE depending on pupil size. Conclusion : The interaction of low and high aberrations can cause the differences in mean SE. Therefore, in order to increase satisfaction when wearing glasses, the spectacles prescription considering the high order aberration should be calculated.

국내 안경사를 대상으로 한 멀티포컬 콘택트렌즈 처방 및 피팅 상태 평가 실태 조사

국내 안경사를 대상으로 한 멀티포컬 콘택트렌즈 처방 및 피팅 상태 평가 실태 조사

Comparison of endpoint of subjective cycloplegic refraction with artificial aperture and post-mydriatic test among adults with refractive error.

PURPOSE:There is a need to understand the requirement for the post-mydriatic test (PMT) among adults for the final prescription of spectacles as this test increases the cost of eye care and causes inconvenience to the patient because of the additional visit to an eye care practitioner. We aim to compare the cycloplegic subjective refraction using apertures of various sizes and PMT in an adult population.METHODS:This prospective crossover study was conducted under standard settings in an eye clinic. Adult individuals between 18 and 35 years of with emmetropia and various degrees of ametropia participated in this study. Individuals with known ocular pathology were excluded. Non-cycloplegic objective refraction was performed followed by subjective refraction. Cycloplegic objective refraction was performed followed by subjective refraction with custom designed artificial apertures. After a washout period of cycloplegic, PMT was performed. The distribution of data was tested using the Kolmogorov–Smirnov test. Depending on the distribution of the data, either parametric or nonparametric test was done.RESULTS:Fifty-nine eyes of thirty individuals with a mean (±SD) age of 23(±4) years with a male: female ratio of 1:4 participated in this study. A comparison of measures of PMT and subjective refraction with 2, 3, 4, 5, and 6 mm aperture under cycloplegic effect using the Friedman test rendered a Chi square value (df = 5) of 1.92 which was not statistically different (P = 0.86).CONCLUSION:Performing subjective refraction with an appropriate spherical and cylindrical endpoint under cycloplegic effect with appropriate aperture overcomes the necessity of PMT.

Dioptres for a myopic eye from a photo

This paper is inspired from a scene in the movie Memento (2000), where the eyeglass prescription for a myopic eye can be estimated since the virtual image of a distant wall seen through the lens and a nearby actor outside the view of the lens are located at the same distance. The estimate illustrates that there are times when the power of physics allows one to arrive at a sophisticated measured result with no equipment. This fascinating example also provides for a nice interdisciplinary connection between physics and medical optics. Due to copyright restrictions on incorporating a movie in class, teachers may use the author’s photo and video included here or have their students make similar media with their smartphones.

Feasibility and Safety of Intraoperative Optical Coherence Tomography-Guided Short-Term Posturing Prescription after Macular Hole Surgery

Purpose: To assess closure rate and visual outcome of a court of patients with macular hole (MH) who underwent surgical repair with intraoperative optical coherence tomography (iOCT)-confirmed MH closure and short-term postoperative face-down posturing (FDP). Secondary aim was to assess the correlation between iOCT and postoperative OCT at day 1. Methods: Retrospective clinical study conducted in the Miulli Hospital Acquaviva delle Fonti (Italy), enrolling patients with idiopathic MH who underwent 25-G pars plana vitrectomy plus internal limiting membrane peeling. During surgery, closure of MH was confirmed by iOCT and short-term FDP (12–24 h, until day-1 visit) was prescribed. All patients had measurement of best-corrected visual acuity (BCVA) and spectral domain-OCT before the surgery and during follow-up (at 1 day, 1 month, 3 months). Results: Twenty-nine eyes of 29 patients (14 males, 62.1%) were enrolled in the study. MH mean size was 451.7 ± 139.7 µm and baseline BCVA was 0.77 ± 0.26 logarithm of the minimum angle of resolution (LogMAR). MH was confirmed to be closed in 100% of patients intraoperatively (iOCT) and at OCT during early follow-up (1–3 days). Mean time of FDP was 18 ± 2.6 h. At 3 months, MH closure rate was 93%; 2 eyes ­underwent secondary MH repair surgery. Final BCVA was 0.39 ± 0.22 LogMAR (p < 0.0001). Conclusion: iOCT-based confirmation of MH closure could be a safe and useful tool for prescribing short-term FDP after surgery, with high closure rate and no additional complication. The execution of an OCT in the immediate postoperative days could be potentially unnecessary.

Towards a Switchable AR/VR Near-eye Display with Accommodation-Vergence and Eyeglass Prescription Support.

In this paper, we present our novel design for switchable AR/VR near-eye displays which can help solve the vergence-accommodation-conflict issue. The principal idea is to time-multiplex virtual imagery and real-world imagery and use a tunable lens to adjust focus for the virtual display and the see-through scene separately. With this novel design, prescription eyeglasses for near- and far-sighted users become unnecessary. This is achieved by integrating the wearer's corrective optical prescription into the tunable lens for both virtual display and see-through environment. We built a prototype based on the design, comprised of micro-display, optical systems, a tunable lens, and active shutters. The experimental results confirm that the proposed near-eye display design can switch between AR and VR and can provide correct accommodation for both.

A differential role for the posterior cerebellum in the adaptive control of convergence eye movements

IntroductionThe vergence oculomotor system possesses two robust adaptive mechanisms; a fast “dynamic” and a slow “tonic” system that are both vital for single, clear and comfortable binocular vision. The neural substrates underlying these vergence adaptive mechanisms in humans is unclear. MethodsWe investigated the role of the posterior cerebellum in convergence adaptation using inhibitory continuous theta-burst repetitive transcranial magnetic stimulation (cTBS) within a double-blind, sham controlled design while eye movements were recorded at 250hz via infrared oculography. ResultsIn a preliminary experiment we validated our stimulation protocols by reproducing results from previous work on saccadic adaptation during the classic double-step adaptive shortening paradigm. Following this, across a series of three separate experiments we observed a clear dissociation in the effect of cTBS on convergence adaptation. Dynamic adaptation was substantially reduced while tonic adaptation was unaffected. Baseline dynamic fusional vergence response were also unaffected by stimulation. ConclusionsThese results indicate a differential role for the posterior cerebellum in the adaptive control of convergence eye movements and provide initial evidence that repetitive transcranial magnetic stimulation is a viable tool to investigate the neurophysiology of vergence control. The results are discussed in the context of the current models of implicit motor adaptation of vergence and their application to clinical populations and technology design in virtual and augmented head mounted display architectures. Significance statementThe cerebellum plays a critical role in the adaptive control of motor systems. Vergence eye movements shift our gaze in depth allowing us to see in 3D and exhibit two distinct adaptive mechanisms that are engaged under a range of conditions including reading, wearing head-mounted displays and using a new spectacle prescription. It is unclear what role the cerebellum plays in these adaptive mechanisms. To answer this, we temporarily disrupted the function of the posterior cerebellum using non-invasive brain stimulation and report impairment of only one adaptive mechanism, providing evidence for neural compartmentalization. The results have implications for vergence control models and applications to comfort and experience studies in head-mounted displays and the rehabilitation of clinical populations exhibiting vergence dysfunctions.

Computer-Based Quality Improvement for Management of Functionally Monocular Patients

Abstract Implementing computer-based decision support can improve physician compliance for prescription of impact-resistant lenses (IRLs) in functionally monocular patients. One of the compliance-limiting factors remains performing a refraction for qualifying patients. There are an estimated 2.4 million eye injuries in the US annually, approximately 90% of which can be prevented by the use of protective eyewear.1 The American Academy of Ophthalmology (AAO) Preferred Practice Patterns for Amblyopia recommends that individuals with unilateral vision impairment with vision of 20/50 in the amblyopic eye should wear protective eyewear full time, even if they do not require optical correction.2 At Dean McGee Eye Institute (DMEI) the preferred practice is to recommend protective eyewear for all functionally monocular individuals (best-corrected vision of 20/50 with qualifying diagnoses and > 2 lines of interocular difference in visual acuity [Table 1 and 2 at www.aaojournal.org ]). We embarked on large-scale quality improvement (QI) initiative for all providers at the DMEI/University for Oklahoma Department of Ophthalmology over a seven-year period.

Monovision and the Misperception of Motion

Monovision is a common prescription lens correction for presbyopia [1]. Each eye is corrected for a different distance, causing one image to be blurrier than the other. Millions of people have monovision corrections, but little is known about how interocular blur differences affect motion perception. Here, we report that blur differences cause a previously unknown motion illusion that makes people dramatically misperceive the distance and three-dimensional direction of moving objects. The effect occurs because the blurry and sharp images are processed at different speeds. For moving objects, the mismatch in processing speed causes a neural disparity, which results in the misperceptions. A variant of a 100-year-old stereo-motion phenomenon called the Pulfrich effect [2], the illusion poses an apparent paradox: blur reduces contrast, and contrast reductions are known to cause neural processing delays [3-6], but our results indicate that blurry images are processed milliseconds more quickly. We resolve the paradox with known properties of the early visual system, show that the misperceptions can be severe enough to impact public safety, and demonstrate that the misperceptions can be eliminated with novel combinations of non-invasive ophthalmic interventions. The fact that substantial perceptual errors are caused by millisecond differences in processing speed highlights the exquisite temporal calibration required for accurate perceptual estimation. The motion illusion-the reverse Pulfrich effect-and the paradigm we use to measure it should help reveal how optical and image properties impact temporal processing, an important but understudied issue in vision and visual neuroscience.

The subjective acceptance in presbyopic patient receiving correction based on conventional method of age v/s amplitude of accommodation

Objective: To observe the subjective acceptance in presbyopic patients following prescription of spectacles.&#x0D; Material and method: This is a hospital based cross sectional study which was conducted in 100 presbyopic patients in age group of 35 to 60 years at outpatient department of ophthalmology in Nobel Medical College Teaching Hospital, kanchanbari from 1 August 2018 to 30November 2018. The patients were divided into two groups, First group received the presbyopic correction according to conventional method of age and the second group received the prescription according to their amplitude of accommodation. Patient's satisfaction in terms of symptoms like eyestrain, headache or difficulty with the usage of glasses was noted. The data collected were subjected to statistical analysis.&#x0D; Conclusion: When presbyopic correction is given according to amplitude of accommodation in patients belonging to 36-45 years age group, it is tolerated better and patients are more satisfied in terms of symptoms like eyestrain and headache than getting the simple correction as per their age. However after the age of 45 years, presbyopic correction given according to age is equally tolerated well among all refractive error groups.&#x0D; Results: 100 patients in this study who visited our OPD with presbyopic symptoms were divided into two groups, each of 50 patients. Patient's satisfaction and tolerance was better when presbyopic correction was given on the basis of their amplitude of accommodation in age group 36-45, in comparison to the prescription given according to conventional method of their age. However, there was no statistically significant difference in the patient's satisfaction level in the two groups after the age of 45.

TRENDS IN SWEDISH CONTACT LENS PRESCRIBING 2017

ABSTRACT Background: The purpose was to evaluate the trends of contact lens prescribing among Swedish optometrists in 2017.Materials and Methods: A standardized survey form was distributed to Swedish optometrists using their professional organisations, optometry chains, direct email, and by hand directly. They were asked to fill out the form for the ten contact lens fits performed after receipt of the survey form. Information was collected regarding age and sex of patient, fit/refit, lens design and material, modality and solution prescribed.Results: 57 forms were returned detailing 562 fits. The mean age of the patients was 37 yrs, and 65 % were female. 83 % were fitted for full-time wear and 27 % were managed as new fits. 94.7 % were soft contact lens fits and silicone hydrogel was the dominating material.Conclusions: When compared with data from Norway and Denmark, it is evident that daily disposables are more popular in these countries (74 %), whereas in Sweden it is monthly replacements (58 %). Otherwise, the results are similar to what has been reported from other parts of the world. Keywords: contact lens, Sweden, prescribing trends, survey

An Overview of Herbal Traditional Eye Care Practices and the Development of Eye Health Promotion Strategies in Cameroon

Herbal plants have played an important role traditional medicine therapy of multiple human illnesses since the existence of man in many parts of the globe .The most common eye diseases include conjunctivitis, cataract, glaucoma, eye allergies, eye inflammation. The problem of adverse drug effects of modern drugs, has led to the increased use nowadays of herbal remedies in the treatment of eye diseases. The World Health Organization (WHO), defines traditional medicine as, the knowledge, skills and practices based on theories, beliefs, and experiences indigenous to diverse cultures, be it explicable or not that are used in the maintenance of health and the prevention, diagnosis, improvement and the treatment of physical and mental diseases. In the last decade, the use of traditional medicine has gained popularity and has expanded globally. While traditional medicine is used in developing countries for primary health care, it is also being used in developed countries with advanced health care systems. Traditional medicine accounts for up to 60% of health care delivered in Cameroon, while in other African countries traditional medicine is being relied on as a result of cultural and historical beliefs and up to 80 % of the population in Africa use traditional medicine to meet their health care needs. Although, traditional medicine is widely used, issues around policy; safety; efficacy and quality control are still of prime public health concern.&#x0D; Traditional eye care practices are believed to be indigenous medicines used by community members for the treatment of eye diseases or ocular problems. This is the most applied form of eye treatment in Africa and other parts of Asia and Latin America. Eye care is a public health concern in Cameroon due to late diagnosis of eye pathology and limited access to medication and affordability of prescription eye glasses. This paper attempts to review the herbal medicine practice as an alternative approach to eye treatment using traditional healing, and the development of eye health promotion strategies in the primary health care system in Cameroon.

WETTABILITY – ANOTHER PARAMETER FOR GOOD FITTING OF A SILICONE-HYDROGEL DAILY DISPOSABLE CONTACT LENS

The modern world is very fast and dynamic. Consumer requirements rise to every commodity part of their everyday life - food, clothing, cosmetics, and medical devices. Eye care and eye health are also part of them. Companies producing contact lenses work daily to improve the safety and comfort of wearing, as well as on the technical characteristics of the material (type of material, wear time, module, Dk / t etc.). Silicon hydrogel contact lenses (SiHy) were introduced almost two decades ago. At that time it was estimated that there are about 70 million contact lenses all over the world. Since then, their number has doubled and a significant majority now have silicone-hydrogel contact lenses, resulting in a steady and noticeable reduction in the number of regular hydrogel lenses. When the first one-day silicon-hydrogel contact lenses were introduced in 2008, they were announced as breakthroughs in technology. When they were introduced to the market, they were presented in spherical, toric and multifocal designs, which led to a significant increase in the use / prescription of silicon-hydrogel daily disposable contact lenses. A survey conducted in 2014 by the International Consortium illustrates this point. Although, according to this study, the use of SiHy contact lenses varies widely across the world. In the United States, Canada, Australia and the United Kingdom, four to six times more patients were fitted with silicone-hydrogel CLs compared to hydrogels in 2014 and in each country, daily disposable SiHy contact lenses were prescribed with a larger frequency compared to daily disposable hydrogel lenses. It is important to make a good fit to ensure and increase the comfort of wearing contact lenses. In addition to some of the standard fitting techniques such as: keratometry and choice of base curve of the lens; size and eccentricity; an assessment of the mobility of a lens placed in the eye - look positions, mobility, push up test, can be added and the wetting of the contact lens. Even in perfect fit, if the lens does not interact well with the tear film, it would lead to complaints and discomfort in the patient. The degree of wetting is determined by the balance between adhesive and cohesive forces acting on the surface of the lens. CLs, which can support full wetting, allow a tight coating of the tear film, a smooth recovery of the tear layer after eyelid opening and good visual acuity. The interaction between CL, eye surface and tear film is vital to their successful fit. It has long been known that both the organic and inorganic components of the tear film and anterior surface of the eye can deposit deposits on the contact lenses. There are various non-invasive methods for assessing the tear film and, above all, the lipid layer. Some of these are Non invasive breakup time (NIBUT) and specular biomicroscopy. In the present work we will look at daily disposable silicone-hydrogel contact lenses that have been tested in vivo for good wetting, stability and good regeneration of the tear film.

Simulated optical performance of soft contact lenses on the eye.

PurposeTo evaluate the impact of soft contact lens eye-fit on optical power by computational modelling and to produce correction maps for reversing this impact during the design process.MethodsFinite element models of spherical and toric hydrogel contact lenses at varying nominal powers of -20 D to +20 D, base curves radii (R1b) of 8.2, 8.5, 8.8 mm, and overall diameters (d3) of 14.5, 15.0, 15.5 mm were generated. Lenses were fitted to computational eye models generated with human eyes’ topography data. Combined eye-lens simulations were run under the boundary conditions of the tears’ surface tension between the contact lens and the eye in addition to the eyelid blink pressure. Lens optical zone power changes were calculated through computational light-ray tracing methods following each simulation.ResultsEffective power changes (EPC) were affected negatively for all toric simulated lenses with power varying from -20 D to +20 D. Spherical lenses demonstrated similar behaviour, however with some positive EPC over the power range from -20 D to -10 D for spherical power (SPH) lenses. EPC assessment was between +0.25 D and -0.5 D for most lenses, however, lenses with prescriptions from +10 D to +20 D incurred EPC outside this range. The spherical lenses showed a maximum effective power change of +1.046 ± 0.338 D (Average Eye), and a minimum of -3.278 ± 0.731 D (Steep Eye). Similarly, the toric lenses showed a maximum of +1.501 ± 0.338 D (Average Eye), and a minimum of -3.514 ± 0.731 D (Steep Eye). EPC trends, along with minimum and maximum power, generally increased negatively as nominal lens prescription increased positively. Contact lens base curve selection affected the assessed effective power change for both spherical and toric lenses. The effect from lens total diameter for spherical lenses was less substantial than that for toric lenses.ConclusionsThis study considered the impact of soft contact lens design parameters on effective optical power changes (EPC) after eye-fit. Spherical lenses experienced more EPC of clinical significance (>0.25 D) than toric lenses. Both types of lenses, spherical and toric (simple astigmatism), demonstrated similar trends in EPC on fitting from -20 D to +20 D, with lenses in the extremely positive and the extremely negative prescriptions demonstrating the highest EPCs. The lens base curve impacted the extent of EPC observed, with flatter base curves experiencing less power change. Diameter proved to impact toric lenses more than spherical ones, however generally the diameter has less effect on power change than base curve selection.

Retrospective chart review of spectacle prescription prevalence in adults with learning disabilities in Scotland.

Evidence suggests that people with learning disabilities are less likely to have an up-to-date eye examination as sight loss is characteristically underdiagnosed in people with complex needs. A retrospective study of records from 576 Service Users of RNIB UK Vision, learning disability and Complex Needs Services was carried out. The record review found a higher prevalence of spectacle prescription in a learning disability (LD) population in agreement with findings from other LD studies. There was a higher prevalence of severe myopia in people with LD compared with a general adult population. This study found a higher prevalence of spectacle prescription in people with learning disabilities compared to a general adult population, which has implications for people with learning disabilities to ensure that they have access to eye care and regularly attended eye tests. It also has implications for healthcare professionals working with people with complex needs to ensure they have access to eye care.

Insights into Australian optometrists' knowledge and attitude towards prescribing blue light-blocking ophthalmic devices.

The aim of this cross-sectional study was to survey Australian optometrists regarding their attitudes towards, and knowledge of, blue light-blocking lenses designed to attenuate blue light transmission to the eye. A 29-item survey was distributed at a major national optometry education conference and through professional networks. Respondents provided information regarding their demographics and practice modalities, knowledge about the potential effects of blue light, and attitudes towards prescribing blue light-blocking ophthalmic devices. Ordinal logistic regression analysis was performed to assess the factors that predicted optometrists' prescribing of blue light-blocking lenses. Of 372 respondents, 75.3% indicated prescribing blue light-blocking spectacle lenses in their clinical practice. Forty-four per cent of optometrists considered daily environmental exposure to blue light as a potential cause of retinal damage, and approximately half of respondents thought blue light emitted from computer screens was an important factor in causing computer vision syndrome. About half of optometrists considered placebo effects to potentially play a role, at least sometimes, in patients' experiences with blue light-blocking lenses. Most optometrists estimated that they first prescribed a blue light-blocking lens in 2016. The most common reason optometrists prescribed these devices was for patients who were computer or electronic device users (87.9%). The two main sources of information used to guide practitioners' management approaches were conference presentations and manufacturer product information. Practitioners were significantly more likely to prescribe blue light-blocking lenses if they considered blue light to cause either retinal damage (odds ratio, OR 2.28, 95%CI 1.34-3.88, p=0.002) or computer vision syndrome (OR 2.52, 95%CI 1.41-4.50, p=0.002) compared with practitioners who did not consider such factors to be relevant. Prescribing trends by Australian optometrists in relation to blue light-blocking lenses reflect the inconclusive nature of several aspects of the evidence in this field. Blue light-blocking lens prescribing has increased since 2010, despite practitioners acknowledging the lack of high-quality evidence to support their use and also commonly believing that placebo effects may have a role in patient responses to these lenses. Information from this study will help inform the development of resources to guide evidence-based prescribing of blue light-blocking lens products.

자동포롭터 및 시험렌즈를 이용한 안경 처방의 신뢰도 평가

자동포롭터 및 시험렌즈를 이용한 안경 처방의 신뢰도 평가

Large dynamic range autorefraction with a low-cost diffuser wavefront sensor.

Wavefront sensing with a thin diffuser has emerged as a potential low-cost alternative to a lenslet array for aberrometry. Here we show that displacement of caustic patterns can be tracked for estimating wavefront gradient in a diffuser wavefront sensor (DWFS), enabling large dynamic-range wavefront measurements with sufficient accuracy for eyeglass prescription measurements. We compare the dynamic range, repeatability, precision, and number of resolvable prescriptions of a DWFS to a Shack-Hartmann wavefront sensor (SHWFS) for autorefraction measurement. We induce spherical and cylindrical errors in a model eye and use a multi-level Demon's non-rigid registration algorithm to estimate caustic displacements relative to an emmetropic model eye. When compared to spherical error measurements with the SHWFS using a laser diode with a laser speckle reducer, the DWFS demonstrates a ∼5-fold improvement in dynamic range (-4.0 to +4.5 D vs. -22.0 to +19.5 D) with less than half the reduction in resolution (0.072 vs. 0.116 D), enabling a ∼3-fold increase in the number of resolvable prescriptions (118 vs. 358). In addition to being lower-cost, the unique, non-periodic nature of the caustic pattern formed by a diffuser enables a larger dynamic range of aberration measurements compared to a lenslet array.

Refractive stability following uncomplicated cataract surgery

BackgroundQuality of life may be negatively impacted following cataract surgery if glasses prescription is delayed. This study aims to confirm the refractive stabilisation time in an Australian population to form the basis for suggesting an appropriate timeframe for spectacle prescription.MethodsParticipants (51 female and 35 male) were recruited one day after uncomplicated unilateral cataract surgery using a monofocal intraocular lens. Subjective refraction, automated refraction and central corneal thickness were measured at two, four and six weeks post‐operatively. A short questionnaire assessing the impact of uncorrected near vision on daily activities was collected at two and four weeks.ResultsThere was no significant change in the mean automated or subjective spherical equivalent refraction (peq < 0.001), mean corneal thickness (peq < 0.001), mean uncorrected distance visual acuity (peq < 0.001) or mean uncorrected near visual acuity (peq < 0.001) over the six‐week study period. At week two, 59 per cent of patients stated that their uncorrected near vision affected their ability to perform daily tasks ‘somewhat’ or ‘a lot’, increasing to 75 per cent by week four.ConclusionUncorrected near vision affected quality of life for most participants. All measured visual and ocular parameters were stable from two weeks post‐operatively. Patients need not wait longer than this for spectacle prescription following uncomplicated unilateral cataract surgery.