Algorithm-assisted Subjective Refraction Program Dedicated to Children

Inclusion Criteria:

1. Age between 6 and 12 years

2. Subject able to recognize and name the letters of the Latin alphabet

3. Pupillary distance (PD) not less than 49mm

4. Distance refractive error for spherical equivalence (SE) within the range of [-6.00to +6.00 D] maximum of the two absolute values RE and LE; Cyl ≤ 3.00 D

5. Monocular Visual acuity ≥ +0.30 LogMAR (0.5 Decimal VA) in each eye at distance

6. Visual acuity difference < 0.20 logMAR between right and left eyes at distance

Exclusion Criteria:

1. Vulnerability of the subject

2. Amblyopia

3. Strabismus

4. Any current or evolving pathology manifested in the eye or the appendages whichmight have an influence on vision, or interfere with refractive state

5. Any previous ocular surgery, which might have an influence on vision or interferewith study assessments (e.g. iridectomy, refractive surgery...)

6. Any ocular or systemic condition known to affect refractive status (e.g.,keratoconus, diabetes, Down's syndrome, etc.)

7. Any neurological or speech disorders that might interfere with the ability tounderstand and answer questions or communicate with the ECP

8. Any untreated and/or uncontrolled systemic condition which might have an influenceon vision or interfere with study assessments

9. Current use of ocular or systemic medications, which, in the Investigator's opinion,may significantly affect pupil size, accommodation or refractive state

10. History of myopia control intervention that may affect refractive assessment (e.g.,atropine, orthokeratology, rigid gas permeable lenses (RGP) etc.) except myopiacontrol spectacles

11. Contraindications of cycloplegia (e.g. high Intra-ocular pressure - more than 22mmHgin either eye, narrow anterior angle, history of allergy to cycloplegic agents orseizures, etc)

12. Aphakic or pseudoaphakic (intraocular lens),

13. Prismatic prescription in either Right or Left eye (horizontal or vertical). -