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The value entered must be a time value in the following format HH:MM within the range 00:00-23:59 (e.g., 04:32 or 23:19).

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Required format:

/^((0?[1-9])|([1-8][0-9])|(9[0-8]))[0-9]{3}$/

/^((29([-\/])02\3(\d{2}([13579][26]|[2468][048]|04|08)|(1600|2[048]00)))|((((0[1-9]|1\d|2[0-8])([-\/])(0[1-9]|1[012]))|((29|30)([-\/])(0[13-9]|1[012]))|(31([-\/])(0[13578]|1[02])))(\11|\15|\18)\d{4}))$/

/^((02([-\/])29\3(\d{2}([13579][26]|[2468][048]|04|08)|(1600|2[048]00)))|((((0[1-9]|1[012])([-\/])(0[1-9]|1\d|2[0-8]))|((0[13-9]|1[012])([-\/])(29|30))|((0[13578]|1[02])([-\/])31))(\11|\15|\19)\d{4}))$/

/^(((\d{2}([13579][26]|[2468][048]|04|08)|(1600|2[048]00))([-\/])02(\6)29)|(\d{4}([-\/])((0[1-9]|1[012])(\9)(0[1-9]|1\d|2[0-8])|((0[13-9]|1[012])(\9)(29|30))|((0[13578]|1[02])(\9)31))))$/

/^(((\d{2}([13579][26]|[2468][048]|04|08)|(1600|2[048]00))([-\/])02(\6)29)|(\d{4}([-\/])((0[1-9]|1[012])(\9)(0[1-9]|1\d|2[0-8])|((0[13-9]|1[012])(\9)(29|30))|((0[13578]|1[02])(\9)31)))) (\d|[0-1]\d|[2][0-3]):[0-5]\d$/

/^(?!\.)((?!.*\.{2})[a-zA-Z0-9\u0080-\u02AF\u0300-\u07FF\u0900-\u18AF\u1900-\u1A1F\u1B00-\u1B7F\u1D00-\u1FFF\u20D0-\u214F\u2C00-\u2DDF\u2F00-\u2FDF\u2FF0-\u2FFF\u3040-\u319F\u31C0-\uA4CF\uA700-\uA71F\uA800-\uA82F\uA840-\uA87F\uAC00-\uD7AF\uF900-\uFAFF!#$%&'*+\-/=?^_`{|}~\d]+)(\.[a-zA-Z0-9\u0080-\u02AF\u0300-\u07FF\u0900-\u18AF\u1900-\u1A1F\u1B00-\u1B7F\u1D00-\u1FFF\u20D0-\u214F\u2C00-\u2DDF\u2F00-\u2FDF\u2FF0-\u2FFF\u3040-\u319F\u31C0-\uA4CF\uA700-\uA71F\uA800-\uA82F\uA840-\uA87F\uAC00-\uD7AF\uF900-\uFAFF!#$%&'*+\-/=?^_`{|}~\d]+)*@(?!\.)([a-zA-Z0-9\u0080-\u02AF\u0300-\u07FF\u0900-\u18AF\u1900-\u1A1F\u1B00-\u1B7F\u1D00-\u1FFF\u20D0-\u214F\u2C00-\u2DDF\u2F00-\u2FDF\u2FF0-\u2FFF\u3040-\u319F\u31C0-\uA4CF\uA700-\uA71F\uA800-\uA82F\uA840-\uA87F\uAC00-\uD7AF\uF900-\uFAFF\-\.\d]+)((\.([a-zA-Z\u0080-\u02AF\u0300-\u07FF\u0900-\u18AF\u1900-\u1A1F\u1B00-\u1B7F\u1D00-\u1FFF\u20D0-\u214F\u2C00-\u2DDF\u2F00-\u2FDF\u2FF0-\u2FFF\u3040-\u319F\u31C0-\uA4CF\uA700-\uA71F\uA800-\uA82F\uA840-\uA87F\uAC00-\uD7AF\uF900-\uFAFF]){2,63})+)$/i

/^[-+]?\b\d+\b$/

/^[a-z]+$/i

/^\d{10}$/

/^[a-z0-9-_]+$/i

/^[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?$/

/^-?\d+,\d$/

/^-?\d+\.\d$/

/^-?\d+,\d{2}$/

/^-?\d+\.\d{2}$/

/^-?\d+,\d{3}$/

/^-?\d+\.\d{3}$/

/^-?\d+,\d{4}$/

/^-?\d+\.\d{4}$/

/^[-+]?[0-9]*,?[0-9]+([eE][-+]?[0-9]+)?$/

/^($0[2-8]$|0[2-8])\s*\d{4}\s*\d{4}$/

/^(?:$?([2-9]0[1-9]|[2-9]1[02-9]|[2-9][2-9][0-9]|800|811)$?)\s*(?:[.-]\s*)?([0-9]{3})\s*(?:[.-]\s*)?([0-9]{4})(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+))?$/

/^((((\+44|0044)\s?\d{4}|$?0\d{4}$?)\s?\d{3}\s?\d{3})|(((\+44|0044)\s?\d{3}|$?0\d{3}$?)\s?\d{3}\s?\d{4})|(((\+44|0044)\s?\d{2}|$?0\d{2}$?)\s?\d{4}\s?\d{4}))(\s?\#(\d{4}|\d{3}))?$/

/^\d{4}$/

/^[ABCEGHJKLMNPRSTVXY]{1}\d{1}[A-Z]{1}\s*\d{1}[A-Z]{1}\d{1}$/i

/^(0[1-9]|[1-9]\d)\d{3}$/

/^\d{3}-\d\d-\d{4}$/

/^(\d|[01]\d|(2[0-3]))(:[0-5]\d){2}$/

/^([0-9]|[0-1][0-9]|[2][0-3]):([0-5][0-9])$/

/^[0-5]\d:[0-5]\d$/

/^[0-9]{4,9}$/

/^\d{5}(-\d{4})?$/

GnBGaHSnJhwLRQA4gJDxtXIqtTx2ogwSnkV7mMgUWyW

Eye Symptoms in COVID-19 Infection

You are invited to participate in a web-based online survey looking at eye symptoms in coronavirus infection. This is a research project being conducted by the National Eye Institute, National Institutes of Health. The survey should take approximately 10 to 20 minutes to complete. Your participation in this survey is voluntary. You may refuse to take part or exit the survey at any time.

Anyone with a confirmed positive COVID-19 test (nose swab, throat swab or saliva test) and over 18 years of age is eligible to participate. All responses will be anonymous. You do not need to have had any eye symptoms in order to participate.

This survey has been approved by the Human Research Protection Program at the National Institutes of Health. You will receive no direct benefits from participating in this research study. However, your responses will help us learn more about the effect of COVID-19 infection on the eyes. There are no foreseeable risks involved in participating in this study.

The survey does not collect identifying information such as your name, email, or IP address. Therefore, your responses will remain anonymous. No one will be able to identify you or your answers, and no one will know whether you participated in the study.

If you have questions at any time about the study, you may contact our study team at eyecovid-19@nih.gov

Thank you for your time.

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To save your responses and end the survey, click the 'End Survey' button below. If you have selected the wrong option by accident and/or wish to return to the survey, click the 'Return and Edit Response' button.