Comparison of the Effect of Capsular Bend on the Rotational Stability Between Two Toric Intraocular Lenses

Wenzhou Medical University

Status: Active, not recruiting

Conditions: Cataract

Study type: Observational

Funder types: Other

Identifiers

NCT06707740

SSOCT-toric

Details and patient eligibility

About

(1) To compare the difference of rotational stability and CBI between AcrySof IQ(SN6AT) and TECNIS(ZCU) after cataract surgery. (2) To evaluate the influence of capsular bending on the rotational stability of these two kinds of intraocular lenses.

Full description

To compare the difference of rotational stability and CBI between AcrySof IQ(SN6AT) and TECNIS (ZCU) torus intraocular lenses implanted after cataract surgery, and analyze the influence of capsular bag bending on the rotational stability of two kinds of astigmatism correction intraocular lenses after cataract surgery.

Enrollment: 68 estimated patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:1.The patient's age is over 18 years old. 2.Diagnosed as age-related cataract Corneal astigmatism measured before operation is > 0.75 D or predicted after operation after taking into account surgical astigmatism (SIA).

3.Pupil diameter > 7 mm after mydriasis. 4.The astigmatism meridian between IOLMaster and Pentacam is the same (the meridian difference between the two instruments is within 15).

5.After operation, the anterior capsule completely covered the edge of intraocular lens optical surface.

6.Able to understand, cooperate and complete all follow-up.

Exclusion Criteria:

1. Moderate and severe dry eye

2. There is irregular corneal astigmatism.

3. Combined with other ophthalmic diseases Previous history of ophthalmic surgery.

4. The capsulorhexis is too large or eccentric, which can not cover the optical zone of intraocular lens all around, and there are intraoperative or postoperative complications.

Trial design

68 participants in 2 patient groups

Group 1 AcrySof IQ(SN6AT) implantation after cataract surgery.

Group 2TECNIS（ZCU） implantation after cataract surgery.