Author: Claude (AI), from PubMed abstracts · Reviewed by: Dr Mina Abdelmseih · Reviewed: 2026-11-15 · Review due: 2027-11-15

Educational content only. Not personalised medical advice. Clinical decisions remain the responsibility of the treating clinician.

Ready-made spectacles and near-vision correction

Ready-made spectacles have the same spherical power in both lenses and are dispensed from stock, avoiding the cost and delay of custom-made lenses [S3] [S4]. Randomised trials in India and China show that, for most children and adults with simple refractive error, ready-made spectacles are worn and valued as much as custom spectacles [S1] [S2] [S8]. Simple reading glasses for presbyopia increased income in a Bangladesh trial [S11].

Key points - In an Indian school programme, 86% of children assessed for refraction were eligible for ready-made spectacles, and wear at 3 to 4 months was not inferior to custom-made spectacles (75.5% vs 73.6%) [S8]. - Allowing ready-made spectacles cut the cost per child needing spectacles from US$26.91 to US$11.15, a 58.6% saving [S10]. - Acuity is slightly better with custom spectacles [S1] [S2], and people with astigmatism of 2.00 D or more or anisometropia benefit less [S2] [S3]. - Free reading glasses increased median monthly income by 33.4% in near vision-intensive workers in Bangladesh [S11]. - A systematic review favoured ready-made over recycled spectacles in developing countries [S4].

Evidence last checked: 2026-10-17 (PubMed abstracts).

Red flags

• Vision that does not improve with correction. Trials included people whose acuity improved with refraction; for example, the Indian school trial required improvement of 2 or more lines in the better eye [S8]. Poor corrected acuity points to eye disease and needs examination.
• High astigmatism or anisometropia. Adults with astigmatism above 2.00 D improved significantly less with ready-made spectacles [S3]. Offer custom spectacles.
• Near-vision difficulty with poor distance vision. The Bangladesh trial enrolled only people with presenting distance vision of 6/12 or better in both eyes [S11].

Recognise it: who is suitable

• Children (India). Eligible if they failed screening at 6/9 in each eye, improved by 2 or more lines with correction, corrected acuity with the spherical equivalent was not more than 1 line worse than full correction, anisometropia was less than 1.0 D, and a suitable frame was available [S8].
• Children (China). Students with at least 1 D of spherical equivalent error, excluding astigmatism of 2.00 D or more and significant anisometropia [S1].
• Adults. Aged 18 to 45 with at least 1 D of uncorrected refractive error [S2] [S3].
• Presbyopia. Adults aged 35 to 65 who could not see 6/13 at 40 cm but whose near vision was correctable [S11].

Confirm it: refraction and selection

• Ready-made power was based on the spherical equivalent, for the eye with lower refractive error, within the available stock [S3].
• In rural Chinese children, quality of life with ready-made glasses or self-refraction was not inferior to cycloplegic refraction by an experienced optometrist [S7].
• Self-adjustable spectacles agree well with cycloplegic subjective refraction but agree poorly for high myopia, cannot correct astigmatism and cover only -6 to +6 D [S5].

Manage it: running a spectacle programme

Before acting on this section, check the national and local guidelines, product information and regulatory approvals that apply where you practise. See the medical disclaimer.

Tier A (primary care / no specialist)

• Reading glasses. Dispense ready-made near correction after a near-vision check for adults with good distance vision; in Bangladesh, 88.3% were still wearing them at 8 months [S11].
• Lack of access, poor awareness, low motivation and cost are reasons presbyopia goes uncorrected; availability of reading glasses ranged from 6% to 45% in developing areas [S6].

Tier B (general eye clinic and school programmes)

1. Stock ready-made spectacles alongside custom spectacles; most children in school programmes can be served from stock [S8] [S10].
2. Apply eligibility rules: exclude higher astigmatism and anisometropia [S2] [S8].
3. Expect similar use. In China, rates of use (94.3% vs 92.2%) and value were similar for ready-made and custom spectacles, although acuity was slightly worse with ready-made [S1]. In Indian adults, 90% planned to continue using ready-made spectacles at 1 month vs 97% with custom; excluding high astigmatism and anisometropia, use was identical (97% vs 97%) [S2].

Tier C (specialist centre and programme planners)

• Custom spectacles for higher astigmatism or anisometropia [S2] [S3].
• Adjustable spectacles. In Chinese schoolchildren, adjustable glasses were worn less than standard glasses (45% vs 58%) although acuity was better and satisfaction not inferior; scratches and frame damage were more common [S9]. Current costs are high in developing countries [S5].
• Recycled spectacles are not favoured, because of quality, cost-effectiveness and dependency concerns [S4].

Refer when

Pitfalls

• Giving ready-made spectacles to people with high astigmatism or anisometropia [S2] [S3].
• Dispensing reading glasses without checking distance vision [S11].
• Assuming good short-term wear predicts long-term use: follow-up in most studies was short [S4].
• Relying on recycled spectacles [S4].

Evidence notes

• Follow-up in the trials was 1 to 8 months [S1] [S2] [S8] [S11]; the systematic review noted follow-up too short to judge continued use [S4].
• Wear at the 1-month visit was under 52% in both arms in the Chinese trial [S1].
• Income in THRIVE was self-reported [S11].
• All trials were in Asia; none in Africa or Latin America were found in this search.
• Not covered by these sources: minimum stock range, frame sizing, quality standards for ready-made lenses, and use in children under 11.

Related articles

• School eye health programmes
• Integrating eye care into primary health care

References

See the numbered source list below. Each marker [S#] links to its PubMed and DOI record.