| LP117006-9 | Contact biometry instrument model | COMPONENT | 1 |
| LP117007-7 | Eye | COMPONENT | 1 |
| LP117008-5 | Axial length | COMPONENT | 3 |
| LP117010-1 | Cornea thickness | COMPONENT | 2 |
| LP117011-9 | Eye problem | COMPONENT | 4 |
| LP117012-7 | In the last 12 months, have you noticed this eye problem | COMPONENT | 1 |
| LP117013-5 | Which eye | COMPONENT | 1 |
| LP117014-3 | Symptom duration | COMPONENT | 1 |
| LP117015-0 | Is it still ongoing | COMPONENT | 1 |
| LP117016-8 | Severity of symptoms | COMPONENT | 1 |
| LP117017-6 | During the last 12 months have you noticed your child frequently squinting | COMPONENT | 1 |
| LP117018-4 | During the last 12 months has your child had difficulty drawing or coloring | COMPONENT | 1 |
| LP117019-2 | During the last 12 months has your child appeared to have difficulty seeing | COMPONENT | 1 |
| LP117020-0 | Does your child close one eye when he or she is in bright sun light | COMPONENT | 1 |
| LP117021-8 | Does your child close or cover one eye when he or she is concentrating | COMPONENT | 1 |
| LP117022-6 | When was your childs last complete eye examination, one that included dilating of pupils where the doctor used bright lights to look in the back of his or her eyes | COMPONENT | 1 |
| LP117023-4 | Child vision problem | COMPONENT | 1 |
| LP117024-2 | Has a doctor ever told you that your child had this vision problem | COMPONENT | 1 |
| LP117025-9 | Has the child ever been treated in the past for this vision problem | COMPONENT | 1 |
| LP117026-7 | Do or did any of his or her relatives have this vision problem | COMPONENT | 1 |
| LP117027-5 | Which relatives have vision problem | COMPONENT | 1 |
| LP117028-3 | Other relative | COMPONENT | 1 |
| LP117029-1 | How many of his or her sisters have, had, or were suspected of having this eye problem | COMPONENT | 1 |
| LP117030-9 | How many of his or her brothers have, had, or were suspected of having this eye problem | COMPONENT | 1 |
| LP117031-7 | How many of his or her grandparents have, had, or were suspected of having this eye problem | COMPONENT | 1 |
| LP117032-5 | How many of his or her other relatives have, had, or were suspected of having this eye problem | COMPONENT | 1 |
| LP117033-3 | Does your child have strabismus - that is one or both eyes are turned in, or turned out, or up or down, or crossed or wall eyes | COMPONENT | 1 |
| LP117034-1 | What treatment for strabismus did your child receive | COMPONENT | 1 |
| LP117035-8 | Other strabismus treatment | COMPONENT | 1 |
| LP117036-6 | What treatment for myopia did your child receive | COMPONENT | 1 |
| LP117037-4 | Other myopia treatment | COMPONENT | 1 |
| LP117038-2 | In the past 12 months, how many times has he or she seen an eye doctor for his or her myopia, nearsightedness | COMPONENT | 1 |
| LP117039-0 | When did your child receive this treatment for other eye or vision problems | COMPONENT | 1 |
| LP117040-8 | Does your child have or had any other eye or vision problems | COMPONENT | 1 |
| LP117041-6 | What treatment did your child receive for other eye or vision problems | COMPONENT | 1 |
| LP117042-4 | Is the participant currently taking drops for glaucoma | COMPONENT | 1 |
| LP117043-2 | What is the name of the glaucoma drops you are using | COMPONENT | 1 |
| LP117044-0 | Other glaucoma drops you are using | COMPONENT | 1 |
| LP117045-7 | For the past 3 months or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy | COMPONENT | 1 |
| LP117046-5 | Do you currently use artificial tears or prescription medication for dry eyes regularly for 3 months or longer | COMPONENT | 1 |
| LP117047-3 | Are you currently using steroid eye drops | COMPONENT | 1 |
| LP117048-1 | Was your child born with any health problems, either physical or mental | COMPONENT | 1 |
| LP117049-9 | Health problem child was born with | COMPONENT | 1 |
| LP117050-7 | During the past 12 months, if child less than 12 months, the childs age in Mos, has your child appeared to have any difficulty seeing | COMPONENT | 1 |
| LP117051-5 | Has your child ever been diagnosed with an eye problem | COMPONENT | 1 |
| LP117052-3 | When was your child first diagnosed as having an eye problem | COMPONENT | 1 |
| LP117053-1 | When was your child first diagnosed as having amblyopia | COMPONENT | 1 |
| LP117054-9 | When was your child first diagnosed as having strabismus | COMPONENT | 1 |
| LP117055-6 | Did he or she ever have an operation to straighten his or her eyes | COMPONENT | 1 |
| LP117056-4 | What month and year did your child first have this type of operation | COMPONENT | 1 |