Etafilcon A toric contact lens first, then nelfilcon A toric second

Nelfilcon A toric contact lens first, then etafilcon A toric toric second

contact lens to correct astigmatism

Distance (4 meter) high contrast standard resolution (ETDRS) acuity was measured twice for each eye. Visual acuity describes the acuteness or sharpness of vision; the ability to perceive small details. Visual acuity is a measure of spacial resolution of the visual processing system; it's tested by requiring the person being tested to identify characters (like letters and numbers)on a chart from a set distance. LogMAR charts are used to assess visual acuity for research studies. LogMAR means Minimum Angle of Resolution. This has lead to the assertion that research is done using a logarithmic progression in size of letters on a test chart gives the most accurate visual acuity measurement. The reason for this is, unlike other charts, LogMAR chart has equal gradation between the letters on the line and the space between the lines. And, there is a fixed number of letters per line.

Distance (4 meter) high contrast standard resolution (ETDRS) acuity was measured twice binocularly. Distance (4 meter) high contrast standard resolution (ETDRS) acuity was measured twice for each eye. Visual acuity describes the acuteness or sharpness of vision; the ability to perceive small details. Visual acuity is a measure of spacial resolution of the visual processing system; it's tested by requiring the person being tested to identify characters (like letters and numbers)on a chart from a set distance. LogMAR charts are used to assess visual acuity for research studies. LogMAR means Minimum Angle of Resolution. This has lead to the assertion that research is done using a logarithmic progression in size of letters on a test chart gives the most accurate visual acuity measurement. The reason for this is, unlike other charts, LogMAR chart has equal gradation between the letters on the line and the space between the lines. And, there is a fixed number of letters per line.

The Contact Lens User Evaluation(CLUE)TM questionnaire is a validated patient-reported outcomes questionnaire to assess patient experience attributes of soft, disposable contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Scores follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response. 97% of the scores fall within 0 and 120 (mean +/-3*SD).

All subjects who completed the study.

Distance (4 meter) high contrast standard resolution (ETDRS) acuity was measured twice for each eye. Visual acuity describes the acuteness or sharpness of vision; the ability to perceive small details. Visual acuity is a measure of spacial resolution of the visual processing system; it's tested by requiring the person being tested to identify characters (like letters and numbers)on a chart from a set distance. LogMAR charts are used to assess visual acuity for research studies. LogMAR means Minimum Angle of Resolution. This has lead to the assertion that research is done using a logarithmic progression in size of letters on a test chart gives the most accurate visual acuity measurement. The reason for this is, unlike other charts, LogMAR chart has equal gradation between the letters on the line and the space between the lines. And, there is a fixed number of letters per line.

Analysis was conducted on subjects who successfully complete the study.

etafilcon A toric contact lens worn daily during first period of a maximum of 9 days, nelfilcon A toric contact lens worn during second period of a maximum of 9 days